2015 Magnetics Powder Core Catalog

POWDER CORES

Molypermalloy | High Flux | Kool Mµ® | XFlux®

We offer the confidence of over fifty years of expertise in the research, design, manufacture and support of high quality magnetic materials and components.

A major manufacturer of the highest performance materials in the industry including: MPP, High Flux, Kool Mµ®, XFlux®, power ferrites, high permeability ferrites and strip wound cores, Magnetics’ products set the standard for providing consistent and reliable electrical properties for a comprehensive range of core materials and geometries. Magnetics is the best choice for a variety of applications ranging from simple chokes and transformers used in telecommunications equipment to sophisticated devices for aerospace electronics.

Magnetics backs it products with unsurpassed technical expertise and customer service. Magnetics’ Sales Engineers offer the experience necessary to assist the designer from the initial design phase through prototype approval. Knowledgeable Sales Managers provide dedicated account management.

Skilled Customer Service Representatives are easily accessible to provide exceptional sales support. This support, combined with a global presence via a worldwide distribution network, including a Hong Kong distribution center, makes Magnetics a superior supplier to the international electronics industry.

Contents

Contents Click on a page number to go directly to the page

Index

Core Locator by Part Number

Section 1

General Information

Core Index and Unit Pack Quantities. . . . . . . . 2

Introduction. . . . . . . . . . . . . . . . . . . . . . . . . . . 6 Applications . . . . . . . . . . . . . . . . . . . . . . . . . . 7 Core Identification. . . . . . . . . . . . . . . . . . . . . . 8 Inductance and Grading . . . . . . . . . . . . . . . . . 9 Core Coating . . . . . . . . . . . . . . . . . . . . . . . . 10

Section 2

Core Selection Inductor Core Selection Procedure. . . . . . . . 11 Core Selection Example . . . . . . . . . . . . . . . . 12 Toroid Winding . . . . . . . . . . . . . . . . . . . . . . . 13 Powder Core Loss Calculation . . . . . . . . . . . 14 Core Selector Charts . . . . . . . . . . . . . . . . . . 19 Wire Table. . . . . . . . . . . . . . . . . . . . . . . . . . . 23

Section 3

Material Data Material Properties . . . . . . . . . . . . . . . . . . . . 24 Core Weights and Unit Conversions . . . . . . . 25 Permeability versus DC Bias Curves . . . . . . . 26 Core Loss Density Curves. . . . . . . . . . . . . . . 30 DC Magnetization Curves. . . . . . . . . . . . . . . 39 Permeability versus Temperature Curves. . . . 42 Permeability versus AC Flux Curves . . . . . . . 46 Permeability versus Frequency Curves . . . . . 50

Section 4

Core Data Toroid Data. . . . . . . . . . . . . . . . . . . . . . . . . . 54 E Core Data . . . . . . . . . . . . . . . . . . . . . . . . . 89 Block Data . . . . . . . . . . . . . . . . . . . . . . . . . . 90 U Core Data . . . . . . . . . . . . . . . . . . . . . . . . . 91 MPP THINZ速 Data. . . . . . . . . . . . . . . . . . . . . 92

Section 5

Hardware E Core Hardware . . . . . . . . . . . . . . . . . . . . . 93 Toroid Hardware. . . . . . . . . . . . . . . . . . . . . . 94

Section 6

Winding Tables Winding Tables. . . . . . . . . . . . . . . . . . . . . . . 96

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Index

Core Locator & Unit Pack Quantity MPP Toroids P/N PAGE 55014 55015 55016 55017 55018 55019 55020 55021 55022 55023 55024 55025 55026 55027 55028 55029 55030 55031 55032 55033 55034 55035 55036 55037 55038 55039 55040 55041 55042 55043 55044 55045 55046 55047 55048 55049 55050 55051 55052 55053 55059 55071 55076 55082 55083 55084 55086 55087 55088 55089 55090 55091 55092 55098 55099 55101 55102 55103

2

57 57 57 57 57 57 57 57 57 57 61 61 61 61 61 61 61 61 61 61 64 64 64 64 64 64 64 64 64 64 66 66 66 66 66 66 66 66 66 66 70 73 75 77 76 77 77 77 77 77 77 77 77 86 86 86 86 80

QTY 10,000 10,000 10,000 10,000 10,000 10,000 10,000 10,000 10,000 10,000 10,000 10,000 10,000 10,000 10,000 10,000 10,000 10,000 10,000 10,000 8,000 8,000 8,000 8,000 8,000 8,000 8,000 8,000 8,000 8,000 5,000 5,000 5,000 5,000 5,000 5,000 5,000 5,000 5,000 5,000 1,000 250 220 120 180 120 120 120 120 120 120 120 120 25 25 25 25 90

P/N PAGE

QTY

P/N PAGE

QTY

P/N PAGE

QTY

P/N PAGE

QTY

55104 55106 55107 55108 55109 55110 55111 55112 55114 55115 55116 55117 55118 55119 55120 55121 55122 55123 55124 55125 55127 55128 55129 55130 55131 55132 55133 55134 55135 55137 55138 55139 55140 55144 55145 55147 55148 55149 55150 55164 55165 55167 55174 55175 55177 55178 55179 55180 55181 55190 55191 55192 55195 55196 55197 55198 55199 55200

90 90 90 90 90 90 90 90 2,000 2,000 2,000 2,000 2,000 2,000 2,000 2,000 2,000 2,000 6,000 6,000 6,000 6,000 6,000 6,000 6,000 6,000 6,000 7,500 7,500 7,500 7,500 7,500 7,500 7,500 7,500 7,500 7,500 7,500 7,500 6 6 6 5,000 5,000 5,000 5,000 5,000 5,000 5,000 80 80 80 80 80 80 80 80 1,600

55201 55202 55203 55204 55205 55206 55208 55209 55234 55235 55236 55237 55238 55239 55240 55241 55242 55243 55248 55249 55250 55251 55252 55253 55254 55256 55257 55264 55265 55266 55267 55268 55269 55270 55271 55272 55273 55274 55275 55276 55277 55278 55279 55280 55281 55282 55283 55284 55285 55286 55287 55288 55289 55290 55291 55292 55293 55304

1,600 1,600 1,600 1,600 1,600 1,600 1,600 1,600 10,000 10,000 10,000 10,000 10,000 10,000 10,000 10,000 10,000 10,000 180 180 180 180 180 180 180 180 180 10,000 10,000 10,000 10,000 10,000 10,000 10,000 10,000 10,000 10,000 8,000 8,000 8,000 8,000 8,000 8,000 8,000 8,000 8,000 8,000 8,000 8,000 8,000 8,000 8,000 8,000 8,000 8,000 8,000 8,000 1,000

55305 55306 55307 55308 55309 55310 55312 55313 55318 55319 55320 55321 55322 55323 55324 55326 55327 55336 55337 55339 55340 55344 55345 55347 55348 55349 55350 55351 55352 55353 55374 55375 55377 55378 55379 55380 55381 55382 55383 55404 55405 55407 55408 55409 55410 55411 55412 55413 55432 55433 55435 55436 55437 55438 55439 55440 55441 55542

1,000 1,000 1,000 1,000 1,000 1,000 1,000 1,000 220 220 220 220 220 220 220 220 220 16 16 16 16 720 720 720 720 720 720 720 720 720 2,000 2,000 2,000 2,000 2,000 2,000 2,000 2,000 2,000 10,000 10,000 10,000 10,000 10,000 10,000 10,000 10,000 10,000 105 105 105 105 105 105 105 105 105 250

55543 55544 55545 55546 55547 55548 55550 55551 55579 55580 55581 55582 55583 55584 55585 55586 55587 55588 55614 55615 55617 55620 55709 55710 55712 55713 55714 55715 55716 55717 55718 55734 55735 55737 55740 55848 55866 55867 55868 55869 55894 55906 55907 55908 55909 55924 55925 55926 55927 55928 55929 55930 55932 55933

250 250 250 250 250 250 250 250 300 300 300 300 300 300 300 300 300 300 45 45 45 45 90 90 90 90 90 90 90 90 90 24 24 24 24 1,600 45 45 45 45 400 40 40 40 40 400 400 400 400 400 400 400 400 400

MAGNETICS

80 80 80 80 80 80 80 80 67 67 67 67 67 67 67 67 67 67 65 65 65 65 65 65 65 65 65 54 54 54 54 54 54 55 55 55 55 55 55 88 88 88 56 56 56 56 56 56 56 81 81 81 81 81 81 81 81 69

69 69 69 69 69 69 69 69 58 58 58 58 58 58 58 58 58 58 76 76 76 76 76 76 76 76 76 59 59 59 59 59 59 59 59 59 59 62 62 62 62 62 62 62 62 62 62 63 63 63 63 63 63 63 63 63 63 70

70 70 70 70 70 70 70 70 75 75 75 75 75 75 75 75 75 87 87 87 87 71 71 71 71 71 71 71 71 71 68 68 68 68 68 68 68 68 68 60 60 60 60 60 60 60 60 60 78 78 78 78 78 78 78 78 78 73

73 73 73 73 73 73 73 73 74 74 74 74 74 74 74 74 74 74 82 82 82 82 79 79 79 79 79 79 79 79 79 83 83 83 83 69 84 84 84 84 72 85 85 85 85 72 72 72 72 72 72 72 72 72

Index

Core Locator & Unit Pack Quantity High Flux Toroids P/N 58018 58019 58020 58021 58022 58023 58028 58029 58030 58031 58032 58033 58038 58039 58040 58041 58042 58043 58048 58049 58050 58051 58052 58053 58059 58071 58076 58083 58089 58090 58091 58092 58098 58099 58101 58102 58109 58110 58111 58112 58118 58119 58120 58121 58122 58123 58128 58129 58130 58131 58132 58133 58164 58165 58167 58190 58191

PAGE

QTY

P/N

57 57 57 57 57 57 61 61 61 61 61 61 64 64 64 64 64 64 66 66 66 66 66 66 70 73 75 76 77 77 77 77 86 86 86 86 80 80 80 80 67 67 67 67 67 67 65 65 65 65 65 65 88 88 88 81 81

10,000 10,000 10,000 10,000 10,000 10,000 10,000 10,000 10,000 10,000 10,000 10,000 8,000 8,000 8,000 8,000 8,000 8,000 5,000 5,000 5,000 5,000 5,000 5,000 1,000 250 220 180 120 120 120 120 25 25 25 25 90 90 90 90 2,000 2,000 2,000 2,000 2,000 2,000 6,000 6,000 6,000 6,000 6,000 6,000 6 6 6 80 80

58192 58195 58204 58205 58206 58208 58209 58238 58239 58240 58241 58242 58243 58252 58253 58254 58256 58257 58268 58269 58270 58271 58272 58273 58278 58279 58280 58281 58282 58283 58288 58289 58290 58291 58292 58293 58308 58309 58310 58312 58313 58322 58323 58324 58326 58327 58336 58337 58339 58340 58348 58349 58350 58351 58352 58353 58378

PAGE 81 81 69 69 69 69 69 58 58 58 58 58 58 76 76 76 76 76 59 59 59 59 59 59 62 62 62 62 62 62 63 63 63 63 63 63 70 70 70 70 70 75 75 75 75 75 87 87 87 87 71 71 71 71 71 71 68

QTY

P/N

80 80 1,600 1,600 1,600 1,600 1,600 10,000 10,000 10,000 10,000 10,000 10,000 180 180 180 180 180 10,000 10,000 10,000 10,000 10,000 10,000 8,000 8,000 8,000 8,000 8,000 8,000 8,000 8,000 8,000 8,000 8,000 8,000 1,000 1,000 1,000 1,000 1,000 220 220 220 220 220 16 16 16 16 720 720 720 720 720 720 2,000

58379 58380 58381 58382 58383 58408 58409 58410 58411 58412 58413 58437 58438 58439 58440 58441 58546 58547 58548 58550 58551 58583 58584 58585 58586 58587 58588 58614 58615 58616 58617 58620 58714 58715 58716 58717 58718 58734 58735 58736 58737 58740 58848 58866 58867 58868 58869 58894 58906 58907 58908 58909 58928 58929 58930 58932 58933

PAGE

QTY

68 68 68 68 68 60 60 60 60 60 60 78 78 78 78 78 73 73 73 73 73 74 74 74 74 74 74 82 82 82 82 82 79 79 79 79 79 83 83 83 83 83 69 84 84 84 84 72 85 85 85 85 72 72 72 72 72

2,000 2,000 2,000 2,000 2,000 10,000 10,000 10,000 10,000 10,000 10,000 105 105 105 105 105 250 250 250 250 250 300 300 300 300 300 300 45 45 45 45 45 90 90 90 90 90 24 24 24 24 24 1,600 45 45 45 45 400 40 40 40 40 400 400 400 400 400

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Index

Core Locator & Unit Pack Quantity Kool Mµ® Toroids P/N

4

77020 77021 77030 77031 77040 77041 77050 77051 77052 77054 77055 77059 77071 77076 77083 77089 77090 77091 77093 77094 77095 77098 77099 77100 77102 77109 77110 77111 77120 77121 77130 77131 77140 77141 77150 77151 77154 77155 77165 77180 77181 77184 77185 77189 77191 77192 77193 77194 77195 77206 77210 77211 77212 77213 77214 77224 77225 77240 77241 77244

PAGE 57 57 61 61 64 64 66 66 66 66 66 70 73 75 76 77 77 77 77 77 77 86 86 86 86 80 80 80 67 67 65 65 54 54 55 55 55 55 88 56 56 56 56 81 81 81 81 81 81 69 69 69 80 80 80 67 67 58 58 58

QTY 10,000 10,000 10,000 10,000 8,000 8,000 5,000 5,000 5,000 5,000 5,000 1,000 250 220 180 120 120 120 120 120 120 25 25 25 25 90 90 90 2,000 2,000 6,000 6,000 7,500 7,500 7,500 7,500 7,500 7,500 6 5,000 5,000 5,000 5,000 80 80 80 80 80 80 1,600 1,600 1,600 90 90 90 2,000 2,000 10,000 10,000 10,000

MAGNETICS

P/N 77245 77254 77256 77258 77259 77260 77270 77271 77280 77281 77290 77291 77294 77295 77310 77312 77314 77315 77316 77324 77326 77328 77329 77330 77334 77335 77337 77338 77339 77350 77351 77352 77354 77355 77356 77380 77381 77384 77385 77410 77411 77414 77415 77431 77438 77439 77440 77442 77443 77444 77445 77548 77550 77552 77553 77555 77585 77586 77587 77589

PAGE 58 76 76 76 76 76 59 59 62 62 63 63 63 63 70 70 70 70 70 75 75 75 75 75 65 65 87 87 87 71 71 71 71 71 71 68 68 68 68 60 60 60 60 78 78 78 78 78 78 54 54 73 73 73 73 73 74 74 74 74

QTY 10,000 180 180 180 180 180 10,000 10,000 8,000 8,000 8,000 8,000 8,000 8,000 1,000 1,000 1,000 1,000 1,000 220 220 220 220 220 6,000 6,000 16 16 16 720 720 720 720 720 720 2,000 2,000 2,000 2,000 10,000 10,000 10,000 10,000 105 105 105 105 105 105 7,500 7,500 250 250 250 250 250 300 300 300 300

P/N 77590 77591 77615 77616 77617 77618 77619 77620 77715 77716 77717 77719 77720 77721 77735 77736 77737 77738 77739 77740 77824 77825 77834 77835 77844 77845 77847 77848 77866 77867 77868 77872 77874 77875 77884 77885 77894 77906 77907 77908 77912 77930 77932 77934 77935 77936

PAGE 74 74 82 82 82 82 82 82 79 79 79 79 79 79 83 83 83 83 83 83 57 57 61 61 64 64 69 69 84 84 84 84 59 59 62 62 72 85 85 85 85 72 72 72 72 72

QTY 300 300 45 45 45 45 45 45 90 90 90 90 90 90 24 24 24 24 24 24 10,000 10,000 10,000 10,000 8,000 8,000 1,600 1,600 45 45 45 45 10,000 10,000 8,000 8,000 400 40 40 40 40 400 400 400 400 400

Index

Core Locator & Unit Pack Quantity XFlux® Toroids P/N 78051 78052 78059 78071 78076 78083 78090 78091 78110 78111 78121 78122

PAGE 66 66 70 73 75 76 77 77 80 80 67 67

QTY 5,000 5,000 1,000 250 220 180 120 120 90 90 2,000 2,000

P/N 78191 78192 78208 78256 78312 78326 78351 78352 78381 78382 78439 78440

PAGE 81 81 69 76 70 75 71 71 68 68 78 78

QTY 80 80 1,600 180 1,000 220 720 720 2,000 2,000 105 105

P/N 78550 78586 78587 78716 78717 78848 78867 78894 78907 78932

PAGE 73 74 74 79 79 69 84 72 85 72

QTY 250 300 300 90 90 1,600 45 400 40 400

Kool Mµ® E Cores, U Cores and Blocks P/N K1808E K2510E K3007E K3112U K3515E K4017E K4020E K4022E K4110U K4111U K4119U K4317E

PAGE 89 89 89 91 89 89 89 89 91 91 91 89

QTY 5700 1728 840 672 840 288 192 168 720 480 240 270

P/N K4741B K5030B K5527U K5528B K5528E K5529U K5530E K6030B K6527E K6527U K6533U K7030B

PAGE 90 90 91 90 89 91 89 90 89 91 91 90

QTY 48 64 128 64 112 96 96 80 54 54 54 60

P/N K7228E K7236U K8020E K8020U K8024E K8030B K8038U K8044E K114LE K130LE K160LE

PAGE 89 91 89 91 89 90 91 89 89 89 89

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QTY 60 60 63 63 45 48 63 63 18 12 16

5

General Information

Introduction Magnetics Molypermalloy Powder (MPP) cores are distributed air gap toroidal cores made from a 81% nickel, 17% iron, and 2% molybdenum alloy powder for the lowest core losses of any powder core material. MPP cores (and all powder cores) exhibit soft saturation, which is a significant design advantage compared with gapped ferrites. Also, unlike ferrites, the MPP saturation curve does not need to be derated with increasing device temperature.

MPP cores possess many outstanding magnetic characteristics, such as high resistivity, low hysteresis and eddy current losses, excellent inductance stability after high DC magnetization or under high DC bias conditions and minimal inductance shift under high AC excitation.

MPP THINZ®, or washer cores, put the premium performance of Magnetics’ superior MPP material into robust, low height toroid form, for low profile inductors.

With MPP THINZ, exact permeability and height are easily adjusted to result in the optimum design for each application.

Magnetics High Flux powder cores are distributed air gap toroidal cores made from a 50% nickel - 50% iron alloy powder for the highest biasing capability of any powder core material. High Flux cores have advantages that result in superior performance in certain applications involving high power, high DC bias, or high AC excitation amplitude. The High Flux alloy has saturation flux density that is twice that of MPP alloy, and three times or more than that of ferrite. As a consequence, High Flux cores can support significantly more DC Bias current or AC flux density.

High Flux offers much lower core losses and superior DC bias compared with powdered iron cores. High Flux cores offer lower core losses and similar DC bias compared with XFlux cores.

Frequently, High Flux allows the designer to reduce the size of an inductive component compared with MPP, powdered iron, or ferrite.

Magnetics Kool Mµ® powder cores are distributed air gap cores made from a ferrous alloy powder for low losses at elevated frequencies. The near zero magnetostriction alloy makes Kool Mµ ideal for eliminating audible frequency noise in filter inductors. In high frequency applications, core losses of powdered iron, for instance, can be a major factor in contributing to undesirable temperature rises. Kool Mµ cores are superior because their losses are significantly less, resulting in lower temperature rises. Kool Mµ cores generally offer a reduction in core size, or an improvement in efficiency, compared with powdered iron cores.

Inductors built with Kool Mµ cores do not have several of the disadvantages that are inherent with gapped ferrite cores: 1. Ferrite saturation flux density is 0.5T or less, which is less than half of the flux density of Kool Mµ alloy. This results in much less energy storage possible in the same volume with ferrite.

2. Moreover, saturation flux density in ferrites is reduced significantly at elevated temperatures, but in Kool Mµ it is not.

3. Ferrites exhibit sharp saturation, and thus risk complete collapse of inductance above a certain safe current level. Kool Mµ’s saturation is soft, allowing for safe design to much higher currents.

4. Fringing losses at the discrete air gap in a ferrite inductor can be disastrous, a problem that is completely absent with Kool Mµ.

Kool Mµ is available in a variety of core types, for maximum flexibility. Toroids offer compact size and self-shielding. E cores and U cores afford lower cost of winding, use of foil inductors, and ease of fixturing. Very large cores and structures are available to support very high current applications. These include toroids up to 102 mm, 133 mm and 165 mm; jumbo E cores; U cores; stacked shapes; and blocks.

Magnetics XFlux® distributed air gap cores are made from 6.5% silicon iron powder. XFlux offers lower losses than powdered iron cores and superior DC bias performance.

The soft saturation of XFlux material offers an advantage over ferrite cores. XFlux cores are ideal for low and medium frequency chokes where inductance at peak load is critical.

All Magnetics Kool Mµ®, XFlux®, MPP and High Flux are true high temperature materials, with no thermal aging.

6

MAGNETICS

Magnetics is committed to meeting global environmental standards and initiatives. Magnetics’ REACH and RoHS compliance statements and reports are available on our website: www.mag-inc.com

General Information

Applications Magnetics powder cores are most commonly used in power inductor applications, specifically in switch-mode power supply (SMPS) filter inductors, also known as DC inductors or chokes. Other power applications include differential inductors, boost inductors, buck inductors and flyback transformers.

highest flux capacity. XFlux® can be a lower cost alternative to High Flux, in situations where the higher core losses and more limited permeability availability of XFlux is acceptable.

The unique advantages of Magnetics’ powder cores are used in a variety of other applications, including: High Q filters, high reliability inductors and filters, high temperature inductors and filters, high current CTs, telecom filters, and load coils.

While all four materials are used in these applications, each has its own advantages. For the lowest loss inductor, MPP material should be used since it has the lowest core loss. For the smallest package size in a DC bias dominated design, High Flux material should be used since it has the

MPP

High Flux

Kool Mµ®

XFlux®

Permeability

14-550

14-160

26-125

26-60

Core Loss

Lowest

Moderate

Low

High

Perm vs. DC Bias

Better

Best

Good

Best

Temperature Stability

Best

Very Good

Very Good

Good

Temperature Rating

200°C continuous

200°C continuous

200°C continuous

200°C continuous

Saturation Characteristic

Soft

Soft

Soft

Soft

Nickel Content

81%

50%

0%

0%

Relative Cost

High

Medium

Low

Low

A lower cost family of alternative products to Magnetics’ four premium powder core materials are powdered irons. Manufacturers of powdered iron use a different production process. For comparison with the above table, powdered irons have permeabilities from 10 -100; highest core loss; good perm vs. DC bias; fair temperature stability; lower temperature ratings; soft saturation; 0% nickel content; lowest relative cost.

Kool Mµ and powdered iron cores have comparable DC Bias performance. The advantages of Kool Mµ compared with powdered iron include (1) lower core losses; (2) no thermal aging, since Kool Mµ is manufactured without the use of organic binders; (3) near zero magnetostriction, which means that Kool Mµ can be useful for addressing audible noise problems; and (4) better stability of permeability vs. AC flux density.

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General Information

Core Identification All Magnetics powder cores have unique part numbers that provide important information about the characteristics of the cores.

A description of each type of part number is provided below.

TOROIDS C O55206A2 Core Finish Code

Voltage Breakdown

Material Availability

OD Size Availability

A2

2,000 VAC min

MPP, High Flux

All

A7

2,000 VAC min

Kool Mµ , XFlux

All

®

®

AY

600 VAC min

All

3.56 - 16.5 mm

A5

2,000 VAC min

All

6.35 - 23.6 mm

A9

8,000 VAC min

All

>4.65 mm

Catalog Number (designates size and permeability) Material Code . . . . 55 = MPP

58 = High Flux

77 = Kool Mµ

78 = XFlux Grading Code . . . . . CO = Graded into 2% inductance bands – OD <4.65 mm, 5% bands

00 = Not graded

• No voltage breakdown min for A2 or A7 with OD ^4.65mm • A2 and A7 voltage breakdown is 1000 VAC with 4.65mm < OD < 26.9mm • AY finish not available for 550µ MPP • All values wire to wire

Powder Core Toroid Stamping Summary Size (OD mm)

6-digit Shop Order Number

6.35 - 6.86

4

7.87 - 12.7

4

> 12.7

4

2-digit Material Code

3-digit Catalog Number

2-digit Core Finish Code

4

4

Inductance Code

Stamping Example

4

123456 020 +6

4

4

4

123456 050A2 +6

4

4

4

123456 55120A2 +6

• Inductance Code is only stamped on MPP toroids with CO Grading Code • Cores with OD < 6.35 mm are not stamped

• Shop order number identifies the product batch, ensuring traceability of every core through the entire manufacturing process, back to raw materials

E CORES and THINZ 00K55 2 8 E 0 6 0

LARGE E CORES 00K130L E026

Permeability Code ... Permeability, e.g. 060 for 60µ

Permeability Code . . Permeability, e.g. 026 for 26µ

Shape Code . . . . . . E = E Core

T = Toroid

U = U Core

P = I Core/Plate

B = Block

Shape Code . . . . . . LE = Large E Core

Size Code . . . . . . . First two digits equal approximate length

or OD in mm / Last two digits equal

approximate height or ID in mm Material Code . . . . . K = Kool Mµ

M = MPP*

H = High Flux*

X = XFlux*

*consult factory Grading Code . . . . . 00 = Not graded

• Full part number and shop order

number are stamped on all shapes

8

MAGNETICS

Size Code Material Code . . . . . M = MPP

H = High Flux

K = Kool Mµ Grading Code . . . . . 00 = Not graded

Inductance and Grading

L LK =

0 .292 N 1 .065 A e where: le

9 - old 1 - 4?or5 0 .292 N Measured vs. Calculated Inductance L = le

LK

AL (Inductance factor) is given for each core in this catalog.

Inductance for blocks is tested in standard picture frame arrangements. Units for AL are nH/T2. AL is related to nominal calculated inductance (LN, in µH) by the number of turns, N. LN = AL N2 10-3 Magnetics’ inductance standards are measured in a Kelsall Permeameter Cup. Actual wound inductance measured outside a Kelsall Cup is greater than the nominal calculated value due to leakage flux and flux developed by the current in the winding. The difference depends on many variables; core size, permeability, core coating thickness, wire size and number of turns, in addition to the way in which the windings are put on the core. The difference is negligible for permeabilities above 125 and turns greater than 500.

However, the lower the permeability and/or number of turns, the more pronounced this deviation becomes.

Example : C055930A2 (26.9 mm, 125µ, p. 72)

Number of Turns

Calculated Inductance

Measured Inductance

1,000

157 mH

+0.0%

500

39.3 mH

+0.5%

300

14.1 mH

+1%

100

1.57 mH

+3%

50

393 µH

+5%

25

98.1 µH

+9%

L LK- old = leakage induc tan ce adder (µH 9 1 - 4?or5 N = number of turns 1 .065

Ae

A e = core cross sec tion (mm 2)

where:

magnetic length (mm) le = core 0 .292 N 1 .065 Apath e

where: LK = The following formula can be used toLapproximate lethe leakage flux to add to the expected inductance. This formula was Cata log Data developed historical data of cores tested at Magnetics.

9 - old 1 from - 4?or5 induc tan ce adder (µH) LK = leakage BeLaware that9this will give an approximation based on - old 1 -only 4?or5 evenly spaced windings. as much induc as a ±50% N = number of turns You may expect L LK = leakage tan ce adder (µH A L = 157 nH/T 2 deviation from this result.

2 sec tion (mm ) N = number of2 turns A e = core cross A e = 65 .4 mm 0 .292 N 1 .065 A e 1 .065 L where: == core magnetic path le LK 0 .292 Nlength A e (mm) A e = core cross sec tion (mm 2) l e Ie = 63 .5 mm L LK = where: le l = core magnetic path length (mm) e

Cata log Data LLK = leakage inductance adder (µH)Induc tan ce Calculated L LK = leakage induc tan ce adderCata (µH) log Data 2 -3 N = number of turns (157) (25) N =adder L LK =2 leakage induc tanLce (µH) 10 Aeof = core 157 nH/T A L==number N turns cross section (mm2) = 98 .1µH N number of turns 2 Ie == core magnetic core mm cross sec tion (mm 2)path A ee = 65 .4 = 157(mm) nH/T 2 A Llength A e = core cross sec tion (mm 2) Ilee = core 63 .5 magnetic mm path length (mm) A e = 65 .4 mm 2 le = core magnetic path length (mm) Ie =72) 63 .5 mm Example: C055930A2 with 25 turns (p.

Leakage Adder Calculated Induc tan ce Cata log Data Cata log-3Data Catalog Calculated Inductance (25) 2Data 10 L N = (157) Calculated tan(65 .4) ce 0 .292Induc (25) 1 .065 L LK = 2 2 -3 63 .5 = A L98 .1µH = 157 nH/T L N = (157) (25) 10 A L =2 157 nH/T 2 = 98 .1µH 9 .3 µH A e = 65 .4 mm = A e = 65 .4 mm 2 Ie = 63 .5 mm Ie = 63 .5 mm Leakage Adder Leakage Adder Estimated Measured Inductance Est Measured Induc tan ce Calculated Induc tan ce Leakage Adder 1 .065 Calculated Induc tan ce 0 .292 (25) L = L N + L LK 2 10 -3 (65 .4) L L NLK==(157) (25)63 .5 L N = (157) (25) 2 10 -3 = 98 .1+ 9 .3 (25) 1 .065 (65 .4) 0 .292 = 98 .1µH L LK = = 9 .3 µH = 98 .1µH 63 .5 = 107 µH = 9 .3 µH

Core Inductance Tolerance and Grading Leakage Adder Est Measured Induc tan ce Magnetics powder cores are precision manufactured to an inductance tolerance of ± 8%*, using standard Kelsall Permeameter Cup measurements with a precision series inductance bridge.

MPP and High Flux cores with outside diameters > 4.65 mm are graded into 2% inductance bands as a standard practice at no additional charge. Core grading can reduce winding costs by minimizing turns adjustments when building high turns inductors to very tight inductance specifications. MPP cores 4.65 mm and smaller are graded into 5% bands. 14µ cores, 26µ cores, MPP THINZ® and parylene coated cores are not graded.

Graded Magnetics MPP cores and High Flux cores are also available with tolerances tighter than the standard ± 8%. *THINZ and Kool Mµ cores with OD < 12.7 mm have wider tolerances.

General Information

9 - old 1 - 4?or5

Leakage Adder L = L N + L LK Est Measured Induc tan ce (65 .4) 0 .292 (25) 1 .065INDUCTANCE TURNS L = GRADE =LK98 .1+ 9 .3 63 .5 0 .292 (25) 1 .065 (65 .4) LK Stamped % Deviation L = L N + L% Deviation L LK = 107 µH = 9 .3 µH 9 .3 Nominal on Core from 63 .5 Nominal = 98 .1+ from OD = 9 .3 µHFrom To = 107 µH From To +8

+8

+7

Est Measured Induc +6 +7 tan ce +5 Est Measured Induc tan ce L = L N ++4L LK +5 +3 L = L N + L LK = 98 .1+ +29 .3 +3 +1 = 98 .1+ 9 .3 = 107 µH +0 +1 -1 = 107 µH

-4.0

-3.5

-3.5

-2.5

-2.5

-1.5

-1.5

-0.5

-0.5

+0.5

-2

-1

-3

+0.5

+1.5

-4

-3

-5

+1.5

+2.5

-6

-5

-7

+2.5

+3.5

-8

-7

-8

+3.5

+4.0

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9

General Information

Core Coating Magnetics toroidal powder cores are coated with a special epoxy finish that provides a tough, wax tight, moisture and chemical resistant barrier having excellent dielectric properties. Parylene coating is also offered.

Material

Color

Core Finish Codes

MPP

Gray

A2, A5, A9

High Flux

Khaki

A2, A5, A9

Kool Mµ

Black

A7, A5, A9

XFlux

Brown

A7, A5, A9

®

®

The finish is tested for voltage breakdown by inserting a core between two weighted wire mesh pads. Force is adjusted to produce a uniform pressure of 10 psi, simulating winding pressure. The test condition for each core in the random sample set, to guarantee minimum breakdown voltage in each production batch, is 60 Hz rms voltage at 1.25 the guaranteed limit. A2 and A7 samples (26.9 mm and larger) are tested to 2500 V min wire-to-wire. AY samples are tested to 750 V min wire-to-wire.

Higher minimum breakdown coatings can be applied upon request for cores larger than 4.65 mm.

Toroids as large as 16.5 mm outside diameter can be coated with parylene to minimize the constriction of the inside diameter. All finished dimensions in this catalog are for epoxy coating (A2 or A7). For a parylene coated toroid (AY), the maximum OD and HT are reduced by 0.18 mm (0.007”), and the minimum ID is increased by 0.18 mm (0.007”).

The maximum steady-state operating temperature for epoxy coating is 200°C. The maximum steady-state operating temperature for parylene coating is 130°C, but it can be used as high as 200°C for short periods, such as during board soldering. High temperature operation of Magnetics powder cores does not affect magnetic properties.

MPP, High Flux, Kool Mµ, and XFlux materials can be operated continuously at 200°C with no aging or damage.

NOTE: Special powder grades and processing were historically used with MPP for passive filter inductors. For information regarding D4, W4, M4 and L6 codes, or precision inductor processing, contact Magnetics.

10

MAGNETICS

Core Selection

Inductor Core Selection Procedure Only two parameters of the design application must be known to select a core for a current-limited inductor; inductance required with DC bias and the DC current. Use the following procedure to determine the core size and number of turns.

(e) Increase the number of turns by dividing the initial number of turns (from step 4(a)) by the percentage rolloff. This will yield an inductance close to the required value after steps 4 (b), (c) and (d) are repeated.

1. Compute the product of LI2 where: L = inductance required with DC bias (mH) I = DC current (A)

(f) Iterate steps 4 (b), (c) and (d) if needed to adjust turns up or down until the biased inductance is satisfactorily close to the target.

2. Locate the LI2 value on the Core Selector Chart (page 20, 21 & 22). Follow this coordinate to the intersection with the first core size that lies above the diagonal permeability line. This is the smallest core size that can be used.

5. Choose a suitable wire size using the Wire Table (page 23). Duty cycles below 100% allow smaller wire sizes and lower winding factors, but do not allow smaller core sizes.

6. Design Checks

3. The permeability line is sectioned into standard available core permeabilities. Selecting the permeability indicated will tend to be the best trade-off between AL and DC bias.

4. Inductance, core size, and permeability are now known. Calculate the number of turns by using the following procedure:

(a)

(b)

The inductance factor (AL in nH/T2) for the core is obtained from the core data sheet.

Determine the minimum AL by using the worst case negative tolerance (generally -8%). With this information, calculate the number of turns 2 the - 1 required inductance needed to11old obtain from:

11old 2 - 13 L 10 N= AL L 10 3 N= AL

Where L is required inductance (µH)

NI

Calculate H the= bias le in A·T/cm from:

H=

NI le

(a) Winding Factor. See p.13 for notes on checking the coil design.

(b) Copper Losses. See p.13 for notes on calculating conductor resistance and losses. (c) Core Losses. See p.14 for notes on calculating AC core losses. If AC losses result in too much heating or low efficiency, then the inductor may be loss-limited rather than current-limited. Design alternatives for this case include using a larger core or a lower permeability core to reduce the 11old 2 -density; 1 AC flux or using a lower loss material such as MPP in place of Kool Mµ, or High Flux in place of Xflux 3 .

N=

L 10 AL

(d) Temperature Rise. Dissipation of the heat generated by conductor and core losses is influenced by many factors. This means there is no simple wayNI to predict temperature rise (3T) precisely.

HBut = the following equation is known to give a le useful approximation for a component in still air.

Surface areas for cores wound to 40% fill are given with the core data in this catalog.

(c)

From the Permeability vs. DC Bias curves 0 .833 Total Losses (mW) 0 .833 (pages 26 through 28), determine the rolloff U Z 3 T (˚C) = Total Losses (mW) Z Component Surface Area (cm 2 ) percentage initial 3 Tof(˚C) = Upermeability for the previ2 ) Component Surface Area (cm 0 .833 ously calculated bias level. Curve fit equations Total Losses (mW) shown in the catalog U simplify this step.

Z 3T (˚C) = can 2 Surface Area (cm ) They are also available Component to use on Magnetics website: http://www.mag-inc.com/design/ design-guides/Curve-Fit-Equation-Tool

(d)

Multiply the required inductance by the percentage rolloff to find the inductance with bias current applied.

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11

Core Selection

0.00 mm Core Selection O.D. Example Determine core size and number of turns to meet the following requirement: (a) M inimum inductance with DC bias of 0.6 mH (600 µH) (b) DC current of 5.0 A 1.

LI2= (0.6)(5.0)2=15.0 mH·A2

2.

U sing the Kool Mµ Toroids LI2 chart found on page 21, locate 15 mH·A2 on the bottom axis. Following this coordinate vertically results in the selection of 0077083A7 as an appropriate core for the above requirements.

3.

F rom the 0077083A7 core data page 76, the inductance factor (AL) of this core is 81 nH/T2 ± 8%.

The minimum AL of this core is 74.6 nH/T2.

4.

he number of turns needed to obtain 600 µH at no T load is 90 turns. To calculate the number of turns required at full load, determine the DC bias level: H= N·I/le where le is the path length in cm. The DC bias is 45.7 A·T/cm, yielding 69% of initial permeability from the 60µ Kool Mµ DC bias curve on page 27.The adjusted turns are 90/0.69 =131 Turns.

12

MAGNETICS

5.

R e-calculate the DC bias level. The permeability versus DC bias curve shows 54% of initial permeability at 66.6 A·T/cm.

6.

M ultiply the minimum AL 74.6 nH/T2 by 0.54 to yield effective AL = 40.3 nH/T2. The inductance of this core with 131 turns and with 66.6 A·T/cm will be 691 µH minimum. The inductance requirement has been met.

7.

T he wire table indicates that 17 AWG is needed to carry 5.0 A with a current density of 500 A/cm2. 131 turns of 17 AWG (wire area = 1.177 mm2) equals a total wire area of 154 mm2. The window area of a 0077083A7 is 427 mm2. Calculating window fill, 154 mm2/427 mm2 corresponds to an approximate 36% winding factor. A 0077083A7 with 131 turns of 17 AWG is a manufacturable design.

Core Selection

0.00 mm Toroid Winding O.D. Winding Factor

MLT and DCR

Winding factor, also called fill factor, is the ratio of total conductor cross section (usually copper cross section) to the area of the core window. In other words, in a toroid, winding factor is given by:

MLT (Mean Length of Turn) is given for a range of winding factors for each core size. To estimate DCR, first, calculate the winding factor for the core, wire gauge, and number of turns selected. On the wire table look up resistance per unit of length for the gauge selected. On the data page for the core selected, consult the Winding Turn Length chart.

Unless the winding factor is exactly one of the values listed, interpolate to find the MLT. Then,

where:

N•AW/WA N = Number of turns AW = Area of the wire WA = Window Area of the core 4 ·ID2

p

Toroid Core Winding factors can vary from 20-60%, a typical value in many applications being 35-40%.

In practice, several approaches to toroid winding are used:

-

Single layer: The number of turns is limited by the inside circumference of the core divided by the wire diameter. Advantages are lower winding capacitance, more repeatable parasitics, good cooling, and low cost. Disadvantages are reduced power handling and higher flux leakage.

-

Low fill: For manufacturing ease and reduced capacitance, winding factor between single layer and 30% may be used.

-

Full winding: Factors between 30% and 45% are normally a reasonable trade off between fully utilizing the space available for a given core size, while avoiding excessive manufacturing cost.

-

High fill: Winding factors up to about 65% are achievable, but generally only with special expensive measures, such as completing each coil by hand after the residual hole becomes too small to fit the winding shuttle.

DCR = (MLT)(N) (Q/Length).

For single layer winding, MLT is the 0% fill value on each core data page. Even easier, DCRs for single layer windings for a range of wire gauges are given in the winding tables on pages 96-99.

Wire Loss DC copper loss is calculated directly as I2R. Naturally, for aluminum conductors, a suitable wire table must be used.

Also, the increase of wire resistance with temperature should be considered.

AC copper loss can be significant for large ripple and for high frequency. Unfortunately, calculation of AC copper loss is not a straight-forward matter. Estimates are typically used.

Estimating Wound Coil Dimensions For each core size, wound coil dimensions are given for 40% winding factor, since this is a typical, practical value.

Worst case package dimensions for coils wound completely full are also shown. These are max expected OD and max 13 - old 2 -HT. 6 expected To estimate dimensions for other winding factors, use:

X% OD 40%2 - OD core2 V + OD core2 40% Q 100% - X% = ID core + HT core QID core + HTcore - HT40% V 60%

OD x% = HT x%

Where: X% is the new winding factor; OD40% and HT40% are the coil dimensions shown on the core data page; ODcore and HTcore are the maximum core dimensions after finish.

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13

Core Selection

Powder Core Loss Calculation

14 - old 2 - 8

= aB f Method 1 –PL Determine Bpk from DC Magnetization Curve. Bpk= f(H) b c pk

Core loss is generated by the changing magnetic flux field within a material, since no magnetic materials exhibit perfectly efficient magnetic 14 --response.

2 - 8 Core loss density (PL) 14 -ofold 8old is a function of half the2 AC flux swing (½ B=Bpk) and frequency (f). It can be approximated from core loss charts or the curve fit loss equation:

- Bmagnetizing B %B function AC min Flux density (B) isBa pknon-linear of field (H), = = AC max2 which in turn is a function2of winding number of turns (N), current (I), and magnetic path length (le). The value of Bpk can typically be determined by first calculating H at each AC extreme:

PLb=f c aB pkb f c PL = aB pk

NS 3I I + 2 X& Ie DC N 3I = # S I DC + 2 X& Ie

H AC max = #

where a, b, c are constants determined from curve fitting, and Bpk is defined as half of the AC flux swing:

B max - B AC min %B %Bpk = B AC max AC min = - BAC B pk = B = 2 2 2 2

H AC min

Units typically used are (A·T/cm) for H. From HAC max, HAC min, and the BH curve (or BH curve fit equation), BAC max, BAC min and therefore Bpk can be determined.

Units typically used are (mW/cm3) for PL; Tesla (T) for Bpk; and (kHz) for f.

3 I Bpk from The task of core loss calculation isNto N 3 determine I H AC max =H#AC maxS I=DC# +Ie S2I DCX&+ 2 X& known design parameters.

Ie

3I N3I N H AC min =H#AC minS I=DC# +Ie S2I DCX&+ 2 X& Ie

0.6

Flux Density (Tesla)

0.5

BAC max

0.4 0.3

B

BAC min

0.2 0.1 0 2

14 15 - old 2 - 9 & 10 10 2 - 9 & 10 14 15 - old

14 15 - old 2 - 9 & 10

HAC min 100

HAC max

200

Magnetizing Force, H (A·T/cm)

20 S 2 20 + 2 X = 66 .14 A $ T cm " B AC max b 0 .44T H AC max = 20 2 2 A $T + 2 X = 66 .14 A $ T cm " B AC max b 0 .44T + 2 X = 66 .14H AC " 6 .35 B AC maxS 20 b 0 .44T H AC max =20 6 .35 S 20 cm = max 2 A $T S 20 - XKool 59 .84 " Bp. cm AC min = AC min b 0 .41T Approximate the- core an inductorHwith 20 turns 72 (60µ, le=6.35 cm, Ae=0.654 cm2, 14 15 old 2loss - 9 &of10 6 .35wound 2 = 20 S 2 20 S on 2 Mµ p/n 77894A7 A $T X H = 200 .41T - 2 X = 59 .84 A $ T cm " B AC min b 0 .41T H ACwith = 20 = 59 .84 " B AL=75 nH/T2). Inductor current is 20 Amps DC ripple of 2 Amps peak-peak at 100kHz. cm AC min min AC min b 6 .35 6 .35 2 6 .3520 Example 1 - AC current is 10% of DC current:

1.) Calculate H and determine B from BH curve or curve fit equation p. 41:

%B 0 .44 - 0 .41 20 2 B pk =A $ T 2cm =" B AC 2 = 0 .015T H AC max = 6 .35 S 20 + 2 X = " 66 .14 max b 0 .44T %B 0 .44 - 0 .41 %B 0 .44 - 0 .41 100 perm " B pk = 2 = = 0 .015T " B pk = 2 = = 0 .015T 2 2 20 S 2 A $T H AC min = 6 .35 20 - 2 X = 59 .84 " B AC min b 0 .41T cm 50

20 10 mW 5 cm 3 2 1 Pfe = (PL) (le) (A e) ~ (16) (6 .35) (0 .654) b 65mW 100 (PL) (le) (A e) ~ (16) (6 .35) (0 .654) 60 b 65mW Pfe = (PL) (le) (A e) ~ (16) (6 .35) (0 .654)Pb 65mW fe =

mW 2 .01loss equation 2.) Determine Core Loss density from chart calculate from PL or = (193) (0 .015 ) (100 1 .20) , 16p. 36:3

cm mW 2 .01 1 .20 PL = (193) (0 .015 2 .01 ) (100 1 .20) , 16 PL cm=3 (193) (0 .015 ) (100 ) , 16 %B 0 .44 - 0 .41 " B pk = 2 = = 0 .015T 2 3.) Calculate core loss:

14

mW PL = (193) (0 .015 2 .01 ) (100 1 .20) , 16 cm 3 MAGNETICS

20

8

6 .35

2

cm 3

PL = (193) (0 .015 2 .01 ) (100 1 .20) , 16 cm 3

Core Selection

P = (PL) (l ) (A 20e) ~S(16) (6 .35) 8 (0 .654) b 65mW HfeAC max = e6 .35 20 + 2 X = 75 .59 A $ T cm " B AC max b 0 .48T mW PL = (193) (0 .015 2 .01 ) (100 1 .20) , 16 cm 3 %B 0 .44 - 0 .41 20 8 20 8 20 8 A $T A $ T A $T " B pk =Pfe 2=H = (l ) (A e) ~ (16)S=20 0 .015T (PL) (6 .35) b 65mW S 20 X+= 75 .59 X H AC=max = 6 .35 B AC X = 50 .39 - 2(0 .654) " B AC min b 0 .36T S 20 + "cm B"AC max bm cm cm AC min e = 2 2 = 75 .59 PHfe AC = max (PL) (le) (A b 65mW 6 .35 6 .35 2 (0 .654) e ) ~ (16) (6 .35) 20 20 8 - 8 X = 50 .39 A $T A $T = S 20 -S 20 X H AC minH AC=min 6 .35 "cm B"AC minBb 0 AC mi cm 6 .35 2 =2 50 .39 20 S 8 A $T H AC max = 6 .35 20 + 2 X = 75 .59 " B AC max b P0 .48T cm fe = (PL) (le ) (A e ) ~ (16) (6 .35) (0 .654) b 65mW mW 2 .01%B 1 .20 0 .48 - 0 .36 PL = (193) (0 .015 ) , 16 " B pk = ) 2(100 20= S 8 2 8 cm 3= 0 .06T A $ T 20 H AC=min = 6 .35 20 -X X = 50 .39 A $T cm AC min b 0 .36T S H AC max " " B ACB cm 20 S 8 max b 0 .48T 6 .35 20 + 2 2= 75 .59 %B20 + 0 .48X -=0 .36 H AC max = %B 75 .59 A $ T cm " B AC max b 0 2 = =20 .48 = - 0 .36 = 0 .06T " B pk"=B pk26 .35 = 0 .06T 2 2 20 8 H AC min = 6 .35 S 20 - 2 X = 50 .39 A $ T cm " B AC min b 0 .36T 20 S 8 A $T H AC min = 6 .35 Example 2Pfe- =AC is 40% DC current: 20 S 20 - 28X = 50 .39 A $ T cm " B AC min b 0 .

(PL)current (le) (A e) ~ (16) (6 .35)of (0 .654) b 65mW X H = 20 + = 75 .59 " B AC max b 0 cm ACof max20 Approximate the core loss for the %B same 20-turn inductor, with same inductor current Amps DC but ripple of 8 Amps peak0 .48 - 0 .36 6 .35 2 " B = = = 0 .06T pk peak at 100kHz. 2 1 .20) ~ 260 mW3 PL = (193)2(0 .06 2 .01 ) (100 20 8 cm H AC min = 6 .35 S 20 - 2 X = 50 .39 A $ T cm " B AC min b 0 .3 %B 0 .48 0 .36 1.) Calculate H and determine mW mW " B pk = 2B from = BH 2curve fit=equation 0 .06T p. 41: 2 .01 1 .20 1 .20 %B 0 .48 2 .01 - 0 .36 ) (100 ) ~ 260 = (193) (0 .06 ) (100 260 =PL (193) (0 .06 "PL B pk = =) ~0 .06T cm 3 cm 3 2 = 2 20 S 8 A $T H AC max = 6 .35 20 + 2 X = 75 .59 " B AC max b 0 .48T cm Pfe = (PL) (le) (A e) = (260) (6 .35) (0 .654) ~ 1W %B 0 .48 - 0 .36 mW 2 .01 1 .20 " B pk = 2 = = 0 .06T ) (100 ) ~ 260 PL = (193) (0 .06 3 20 S 8 2 A $T cm H AC min = 6 .35 20 - 2 X = 50 .39 " B AC min b 0 .36T cm (PL) (l ) (A e) = (260) (6 .35) (0 .654) Pfe = P(PL) (6 .35) (0 .654) ~ 1W~ 1W fe = (l e ) (A e )e = (260) mW 2 .01 1 .20 PL = (193) (0 .06 ) (100 ) ~ 260 cm 3 mW 2.) Determine Core Loss density from chart or calculate from loss equation p.36: PL = (193) (0 .06 2 .01 ) (100 1 .20) ~ 260 cm 3

Powder Core Loss Calculation

3.) Calculate core loss: Pfe = (PL) (le) (A e) = (260) (6 .35) (0 .654) ~ 1W

%B 0 .48 - 0 .36 " B pk = 2 = mW 2 .01 1 .20 2 20 = 0 .06T PL = (193) ~ 260 cm 3of the A $T Note: Core losses result only from excitation. bias applied to any not cause(0 .06 any core) (100 losses,) regardless S + 8 X =DC12 .60 H AC max = AC " B 0 .11T cm ACcore max b does 2 ) = (260) (6 .35) (0 .654) ~ 1W Pfe = (PL) (le) (A e6 .35 magnitude of the bias.

Pfe = (PL) (le) (A e) = (260) (6 .35) (0 .654) ~ 1W 8 20 S 8 20 20 A $T A $T X = 12 .60 H AC=max = B AC b H AC min = 6 .35 - 2 X = - 12 .60 A $ T cm " B AC min b - 0 .11T S + 8SX+=2 12 .60 H AC max "cm B"AC max b max 0 .1 cm 2 6 .356 .35 Example 3 – pure AC, no DC: 8 20e) =20 8 (6 .35) A $T A $ T ~ 1W =Amps (PL) (lpeak-peak PH fe8 e ) (A X = (0 .654) H =min = - 12 .60 b S(260) - 2atSX -= "cm B"AC minBb 0 .1 Approximate the core loss for the same 20-turn inductor, now with 0 Amps DC and 100kHz. AC min cm AC min AC 2 - 12 .60 6 .356 .35 2 .01 201 .20)S~ 260 8 mW3 A $T ) (100 PL = (193) (0 .06 H AC max = 6 .35 + 2 X =cm12 .60 " B AC max b 0 .11T cm 1.) Calculate H and determine B from %B BH curve fit equation p. 41: " B pk = 2 20~ 0 .11T 8 A $T 20 H = = - 12 .60 B AC min b - 0 .11T A $T S + 8S -X 2= X 12 .60 H AC max AC=min 6 .356 .35 "cm B" cm 20 S 8 AC max b 0 .11T 2 %B+ X = 12 .60 A $ T cm " B AC max b 0 .11 H AC max = %B = ~20 .11T ~20 .11T " B pk"=B pk26 .35 20 8 ~ 1W Pfe = (PL) A $T e ) (A e ) = (260) H AC(lmin = 6 .35 S(6 .35) - 2 X =(0 .654) - 12 .60 " B AC min b - 0 .11T cm 20 S 8 A $T H AC min = 6 .35 20 S - 28X = - 12 .60 A $ T cm " B AC min b - 0 .1 X H + = 12 .60 " B b 0 .11 cm AC max = %B 2 reverse the sign Note: Curve fit equations are not valid negative values of B. Evaluate for the absolute value6 .35 of B, then of the AC max " B pk = 2 for ~ 0 .11T mW resulting H value.

PL = (193) (0 .11 2 .01 ) (100 1 .20) ~ 900 cm 3 20 8 H AC min = 6 .35 S - 2 X = - 12 .60 A $ T cm " B AC min b - 0 .11 %B mW mW " B pkdensity = 2 from ~ 0 .11T 2 .01 1 .20 %B 2 .01 = (193) ) (100 ) ~ 900 2.) Determine Core Loss chart or calculate from loss equation p.36. "PL =PL (193) (0 .11(0 .11 ) (100 ) ~1 .20 900 B pk = cm 3 cm 3 2 ~ 0 .11T 20 S 8 A $T H AC max = + X = 12 .60 " B AC max b 0 .11T cm Pfe = (PL)2(le) (A e) = (900) (6 .35) (0 .654) ~ 4W 3.) Calculate core loss: 6 .35 %B mW 2 .01 1 .20 " B pk = 2 ~ 0 .11T ) (100 ) ~ 900 PL = (193) (0 .11 3 20 8 A $T cm Plotted belowHare the operating for each of cm the " three S ranges X B ACexamples.

AC min = min b - 0 .11T (PL) (l ) (A e) = (900) (6 .35) (0 .654) 6 .35 - 2 = - 12 .60 Pfe = P (PL) (6 .35) (0 .654) 4W~B4W fe = (l e ) (A e )e = (900) Note the significant influence of DC bias on core loss, comparing Example 3 with Example 2. Lower permeability results in~less pk, mW 2 .01 1 .20 ) (100 ) ~ 900 PL =is(193) (0 .11 This mW even if the current ripple the same. effect can be achieved with DC bias, or by selecting a lower permeability material.

3 2 .01 1 .20 cm PL = (193) (0 .11 ) (100 ) ~ 900 cm 3 0.6 0.5

Flux Density (Tesla)

0.4 0.3 0.2 0.1 0

P = (PL) (le) (A e) = (900) (6 .35) (0 .654) ~ 4W %B fe " B pk = 2 ~ 0 .11T 60µ Kool Mµ DC Magnetization Curve Pfe = (PL) (le) (A e) = (900) (6 .35) (0 .654) ~ 4W Example 1 HAC min=59.84

AC max

BAC min=0.41 mW PL = (193) (0 .11 2 .01 ) (100 1 .20) ~ 900 cm 3 Example 3 HACPmin==-12.6 (PL) (le) (A e) = (900) (6 .35) (0 .654) ~ 4W fe BAC min= -0.11 Example 3 HAC max=12.6

0

Example 2 HAC~max4W =75.59 Pfe = (PL) (le) (A e) = (900) (6 .35) (0 .654) HDC=63 BAC max=0.48 Example 1&2

Example 2 HAC min=50.39 BAC min=0.36

BAC max=0.11

HDC=0 Example 3

-0.1 -0.2 -20

Example 1 mW PL = (193) (0 .11 2 .01 ) (100 1 .20) ~ 900 cm 3 HAC max=66.14 B =0.44Pfe = (PL) (le) (A e) = (900) (6 .35) (0 .654) ~ 4W

20

40

60

Magnetizing Force, H (A·T/cm)

www.mag-inc.com

80

100

15

Core Selection

Powder Core Loss Calculation Method 2, for small H, approximate Bpk from effective perm with DC bias.

16 - old 2 - 11 Bpk = f(µe, H)

16 - old 2 - 11 ppp The instantaneous slope ppp of the BH curve is defined as the absolute permeability, which is the product of permeability of free space

(µ0=4 x10-7) and the material permeability (µ), which varies along the BH curve. For small AC, this slope can be modeled as a constant throughout with µ approximated as the effective perm at DC bias (µe): 16 - oldAC 2 - excitation, 11

p

ppp

%B %B dB " = µ 0 µ e " %B = µ 0 µ e %B %B B pk = 2 = Q 0 .5 V µ 0 µ e %H = µ%B 0 µe dB %H dH = µ0 µe " = µ 0 µ e " %B = µ 0 µ e %B B pk = 2 = Q 0 .5 V µ 0 µ e %H %H dH

The effective perm %Bis shown in this catalog as % of initial perm %B and can be obtained from the DC bias curve or curve dB with DC bias fit equation: dH = µ 0 µ e " %H = µ 0 µ e " %B = µ 0 µ e %B B pk = 2 = Q 0 .5 V µ 0 µ e %H

B pk = Q 0 .5 V Q µ 0 VQ %µ iVQ µ iVQ 100 V Q %H V where N%I %H = B pk = Q 0 .5 V Q µ 0 VQ %µ iVQ µ iVQ 100 V Q %H V where %H = le H is multiplied by 100 because le is expressed in cm, while Bpk units include m.

B pk = Q 0 .5 V Q µ 0 VQ %µ iVQ µ iVQ 100 V Q %H V

where

%H =

N%I le

N%I le

20 # H Q20 V& = 63 A $ T cm " from curve or curve fit equation,%µi = 0 .57 20DC = 6 .35 & = 63 A $ T cm " from curve or curve fit equation,%µ i = 0 .57 H DC = # 6 .35 Q 20 V Reworking Example 1 (20 Amps DC, 2 Amps p-p) µ i = 60 µ i = 60 N%I 20 (2) %H = 20 (2) = 6 .35 = 6 .3 A $ T cm 20 N%I lfit e equation,%µ H DC = # 6 .35 Q 20 V& = 63 A $ T cm " from curve or curve = 6 .35 = 6 .3 A $ T cm i = 0 .57 %H = le B pk = 0 .5 (4r x 10 -7) (0 .57) (60) (100) (6 .3) = 0 .014T (this compares to 0 .015T using Method 1) i = 60 B pk = 0 .5 (4r x 10 -7) (0 .57) (60) (100)µ(6 .3) = 0 .014T (this compares to 0 .015T using Method 1) N%I 20 (2) = 6 .35 = 6 .3 A $ T cm %H = le B pk = 0 .5 (4r x 10 -7) (0 .57) (60) (100) (6 .3) = 0 .014T (this compares to 0 .015T using Method 1)

Reworking Example 2 (20 Amps DC, 8 Amps p-p)

From example 1,

H DC = 63 A $ T cm ,%µ i = 0 .57; µ i = 60 N%I 20 (8) %H = = 6 .35 = 25 .2 A $ T cm le B pk = 0 .5 (4r x 10 -7) (0 .57) (60) (100) 0 .054T (this to 0 .06T using Method 1) H =(25 .2) 63 A $ T =,%µ = 0 .57; µ =compares 60 cm

DC

i

i

N%I 20 (8) %H = = 6 .35 = 25 .2 A $ T cm le B pk = 0 .5 (4r x 10 -7) (0 .57) (60) (100) (25 .2) = 0 .054T (this compares to 0 .06T using Method 1) Reworking Example 3 (0 Amps DC, 8 Amps p-p)

From example 2,

%H = 25 .20 A $ T cm H DC =

A$T

cm

B pk = 0 .5 (4r x 10 ) (1) (60) (100) (25 .2) = 0 .095T (this compares to 0 .11T using Method 1) %H = 25 .20 A $ T cm H DC =

A$T

cm

B pk = 0 .5 (4r x 10 ) (1) (60) (100) (25 .2) = 0 .095T -7

16

%µ i = 1

-7

MAGNETICS

%µ i = 1 (this compares to 0 .11T using Method 1)

Core Selection

Powder Core Loss Calculation 17 - old 2 - 12

Method 3, for small H, determine Bpk from biased inductance. Bpk==f(L,I) B can be rewritten in terms of inductance by considering Faradayâ&#x20AC;&#x2122;s equation and its effect on inductor current: 17 - old 2 - 12

V L = NA

dB dl L =L " dB = dl dt - old 2dt- 12 NA 17

dB dl L V L = NA =L " dB = dl dt dt NA 17 - old 2 - 12 L DC %I L DC %I L " dB B pk==L dl V L = NA " AC dB = dl and is approximated by the biased L varies non-linearly with I. For small AC, L can%B be=assumed constant excitation NA 2NA dt throughout dt e NA inductance (LDC).

L DC %I L %I dB B pk =dl DC L " VNA = L 2NA " e dB = dl L = NA dt dt NA dB L dl = = L DC %I " B pk = L DC %I dH %B NA dH 2NA e NA

%B = 17 - old 2 - 12 "

dB L L dl%I = between Another way of looking at this is by rewriting the " relationship B and L as:L DC %I dB dl dH%B NA L " B pk = = DCdH V L = NA =L " dB = NA dl 2NA e dt dt NA LIdB dB e L dl " = dH " N 2 dH A e = NA dH L %I %B = DC NA Substituting (dH/dI) with (N/le) and A with Ae:

"

"

LIe dB L dl " = dB 2 dH" L DC N %I A= " B pk = dH e NA dH 2NA e L DC Ie dB L %I %B LI L l " %Be= DC e %H = DC = 2 NA e %H N" A e dH = N 2 A e N 2 A e

"

%B pk =

L DC %I 2NA e

L DC Ie le L %I L %I %B LIe = L DC dB " %B pk = DC %H = DC 2 dB L dl%H = "N 2 A e " = %B N NA 2NA e A e e 2 = dH N A e dH NA dH L I L le L %I L %I %B " %B pk = DC %H = DC = DC e " %B = DC N2 Ae NA e 2NA e %H N 2 A e LIe dB = dH N 2 A e

L I %B = DC e %H N 2 A e

"

%B =

L DC le L %I %H = DC N2 Ae NA e

"

%B pk =

L DC %I 2NA e

L varies non-linearly with H. For small AC, the slope of the BH curve is assumed constant throughout AC excitation, and L is approximated by the biased inductance (LDC).

L I %B = DC e %H N 2 A e

"

%B =

L DC le L %I %H = DC N2 Ae NA e

"

%B pk =

L DC %I 2NA e

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17

Core Selection

Powder Core Loss Calculation 18 - old 2 - 13 18 - old 2 - 13 18 - old 2 - 13

Reworking Example 1:

L nl (no load) = (A L) (N 2) = (75 nH/T 2) (20 2) = 30µH 2 2 L Lnl DC (no(20A) load)==(%µ (A L)i)(N nH/T ) (20 ) = 30µH (L nl2) = (75 (0 .57) (30) = 17 .1µH 2 2 2 -6 load) = (A ) = (75 nH/T ) (20 ) = 30µH L ) )(N (17 .1) (10 ) (2) L nlL(no (20A) = (%µ (L ) = (0 .57) (30) = 17 .1µH DC nl (thisi compares to 0 .015T per Method 1, 0 .014T per Method 2) . " B pk = -4 = 0 .013T -6 (10 ) 2 (20) (0 .654) (20A) = (%µ ) (L ) = (0 .57) (30) = 17 .1µH L (17 .1) (10 ) (2) DC i nl = 0 .013T (this compares to 0 .015T per Method 1, 0 .014T per Method 2) . " B pk = 2 (20) (0 .654) (2) -4) (17 .1) (10 -6)(10 = 0 .013T (this compares to 0 .015T per Method 1, 0 .014T per Method 2) . " B pk = 2 (20) (0 .654) (10 -4) Reworking Example 2:

From example 1, L DC = 17 .1µH (17 .1) (10 ) (8) From example 1, L DC = 17 .1µH (this compares to 0 .06T per Method 1, 0 .054T per Method 2) . " B pk = -4 = 0 .052T 2 (20) (0 .654) From example 1, L DC = 17 .1µH (8) ) (17 .1) (10 -6)(10 = 0 .052T (this compares to 0 .06T per Method 1, 0 .054T per Method 2) . " B pk = 2 (20) (0 .654) (8) -4) (17 .1) (10 -6)(10 (this compares to 0 .06T per Method 1, 0 .054T per Method 2) . " B pk = -4 = 0 .052T 2 (20) (0 .654) (10 ) -6

Reworking Example 3:

(30) (10 -6) (8) = 0 .092T " B pk = 2 (20) (0 .654) (10 -4) (30) (10 -6) (8) = 0 .092T " B pk = 2 (20) (0 .654) (10 -4) (30) (10 -6) (8) = 0 .092T " B pk = 2 (20) (0 .654) (10 -4)

L DC = L nl = 30µH L DC = L nl = 30µH (this compares to 0 .11T per Method 1, 0 .095T per Method 2) .

L DC = L nl = 30µH (this compares to 0 .11T per Method 1, 0 .095T per Method 2) . (this compares to 0 .11T per Method 1, 0 .095T per Method 2) .

The plot below illustrates the difference between Method 1 and Method 2

0.5 0.48

60µ Kool Mµ DC Magnetization Curve

Flux Density (Tesla)

0.46 0.44

B Method 2 Example 2

B Method 1 Example 2

0.42 0.4 0.38 0.36 0.34 45

18

50

MAGNETICS

55

60

65

Magnetizing Force, H (A·T/cm)

70

75

80

100 perm 50 20

Core Selection

Core Selector Charts The core selector charts are a quick guide to finding the optimum permeability and smallest core size for DC bias applications. These charts are based on a permeability reduction of not more than 50% with DC bias, typical winding factors of 40% for toroids and 60% for shapes, and an AC current that is small relative to the DC current. These charts are based on the nominal core inductance and a current density 500-600 A/cm2.

For additional power handling capability, stacking of cores will yield a proportional increase in power handling. For example, double stacking of the 55908 core will result in doubled power handling capability to about 400 mH路A2.

Cores with increased heights are easily ordered. Contact Magnetics for more information.

If a core is being selected for use with a large AC current relative to any DC current, such as a flyback inductor or buck/boost inductor, frequently a larger core will be needed to limit the core losses due to AC flux. In other words, the design becomes loss-limited rather than bias-limited.

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19

Core Selection

Core Selector Charts MPP Toroids 55336, pg 87

55164, pg 88

14µ

55735, pg 83

55102, pg 86

26µ

55868, pg 84

55908, pg 85 55617, pg 82

55111, pg 80

55192, pg 81

55716, pg 79

55090, pg 77

55439, pg 78

55083, pg 76

55076, pg 75

55586, pg 74

55071, pg 73

60µ

55350, pg 71

55930, pg 72

125µ

55206, pg 69

55310, pg 70 55377, pg 68

200µ

55117, pg 67

55047, pg 66

55125, pg 65

55035, pg 64

300µ

55285, pg 63

55275, pg 62

55405, pg 60

55025, pg 61

55265, pg 59

55235, pg 58

55015, pg 57

55175, pg 56

55145, pg 55

0.0001

55135, pg 54

0.001

0.01

0.1

1

10

100

1000

5000

LI², (mH·A²)

125 perm 90 100 75 60 50 40 25 26 60µ 14 147 173 160 200 250 300 500 550

High Flux Toroids 58165, pg 88 58737, pg 83 58907, pg 85 58617, pg 82 58195, pg 81 58438, pg 78

125µ

58254, pg 76 58548, pg 73 58929, pg 72

147µ

58309, pg 70

26µ

58337, pg 87 58099, pg 86 58867, pg 84 58110, pg 80 58716, pg 79 58090, pg 77 58324, pg 75 58585, pg 74 58349, pg 71 58204, pg 69

58118, pg 67

160µ

58048, pg 66

58378, pg 68 58128, pg 65

58038, pg 64

58288, pg 63

58278, pg 62

58408, pg 60

58028, pg 61

58268, pg 59

58238, pg 58

0.001

0.01

0.1

1

10

100

1000

LI², (mH·A²)

20

MAGNETICS

125 perm 90

58018, pg 57

10000

Core Selection

Core Selector Charts Kool Mµ® Toroids 77165, pg 88

26µ

77337, pg 87 77102, pg 86

77735, pg 83

77908, pg 85

77868, pg 84

40µ

77212, pg 80

77616, pg 82 77192, pg 81

77721, pg 79

77439, pg 78

77095, pg 77

60µ

77076, pg 75

77083, pg 76 77071, pg 73

77586, pg 74

90µ

77354, pg 71

77934, pg 72 77314, pg 70

77210, pg 69

125µ

77380, pg 68

77120, pg 67 77050, pg 66

77130, pg 65

77040, pg 64

77290, pg 63

77280, pg 62

77410, pg 60

77030, pg 61

77270, pg 59

77240, pg 58

77020, pg 57

77180, pg 56

77150, pg 55

0.0001

0.001

0.01

0.1

1

10

100

1000

77140, pg 54

3000

LI², (mH·A²)

XFlux Toroids ®

78867, pg 84

78192, pg 81

78090, pg 77

78083, pg 76

60µ

78586, pg 74

125 perm 90 100 75 60 50 40 25 26 14 147 173 160 200 250 300 500 550

78907, pg 85

78110, pg 80

78716, pg 79

78439, pg 78

78076, pg 75

78071, pg 73 78894, pg 72 78351, pg 71 78059, pg 70 78848, pg 69 78121, pg 67 78381, pg 68 78051, pg 66

0.1

10

1

100

500

LI², (mH·A²) www.mag-inc.com

21

Core Selection

Core Selector Charts Kool Mµ® E Cores K160LE026, pg 89 K130LE026, pg 89

26µ

K8020E040, pg 89

K8044E026, pg 89

40µ

K6527E040, pg 89

K7228E040, pg 89 K5530E060, pg 89

60µ

K5528E060, pg 89

K4022E090, pg 89 K4017E060, pg 89 K4020E060, pg 89 K4317E090, pg 89

90µ

K3515E090, pg 89

K3007E090, pg 89 K2510E090, pg 89 K1808E090, pg 89

0.1

1

10

100

1000

3000

LI², (mH·A²)

125 perm 90 100 75 60 50 40 25 26 14 147 173 160 200 250 300 500 550

Kool Mµ® U Cores K8020U026, pg 91

K7236U026, pg 91

K5529U026, pg 91

K8038U026, pg 91

K6527U026, pg 91

26µ K6533U026, pg 91

K5527U026, pg 91 K4119U090, pg 91

90µ K4111U090, pg 91 K4110U090, pg 91 K3112U090, pg 91

10

1

100

1000

LI², (mH·A²)

22

MAGNETICS

125 perm 90

Core Selection

Wire Table AWG Wire Size

Resistance /meter

Wire O.D. (cm) Heavy Build

Wire Area cm2

6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49

.00130 .00163 .00206 .00260 .00328 .00414 .00521 .00656 .00828 .01044 .01319 .01658 .02095 .02640 .03323 .04190 .05315 .06663 .08422 .10620 .13458 .16873 0.214 0.266 0.340 0.429 0.532 0.675 0.857 1.085 1.361 1.680 2.13 2.78 3.54 4.34 5.44 7.03 8.51 10.98 13.80 17.36 22.10 27.60

.421 .376 .336 .299 .267 .238 .213 .1902 .1715 .1529 .1369 .1224 .1095 .0980 .0879 .0785 .0701 .0632 .0566 .0505 .0452 .0409 .0366 .0330 .0295 .0267 .0241 .0216 .01905 .01702 .01524 .01397 .01245 .01092 .00965 .00864 .00762 .00686 .00635 .00546 .00498 .00452 .00394 .00353

0.1392 0.1110 0.0887 0.0702 0.0560 0.0445 0.0356 0.0284 0.0231 0.01840 0.01472 0.01177 0.00942 0.00754 0.00607 0.00484 0.00386 0.00314 0.00252 0.00200 0.00160 0.00131 0.00105 0.000855 0.000683 0.000560 0.000456 0.000366 0.000285 0.000228 0.000182 0.000153 0.000122 0.000094 0.000073 0.000059 0.000046 0.000037 0.000032 0.000023 0.000019 0.000016 0.000012 0.000010

Q

Current Capacity, Amps (listed by columns of Amps/cm2) 200

400

500

600

800

26.6 21.1 16.7 13.3 10.5 8.34 6.62 5.25 4.16 3.30 2.62 2.08 1.65 1.31 1.04 0.823 0.649 0.518 0.409 0.325 0.256 0.204 0.161 0.129 0.101 0.0803 0.0649 0.0511 0.0402 0.0318 0.0253 0.0205 0.0162 0.0124 0.00974 0.00795 0.00633 0.00490 0.00405 0.00314 0.00250 0.00199 0.00156 0.00125

53.2 42.2 33.5 26.5 21.0 16.7 13.2 10.5 8.33 6.61 5.23 4.16 3.29 2.61 2.08 1.65 1.30 1.04 0.819 0.649 0.512 0.409 0.322 0.259 0.203 0.161 0.130 0.102 0.0804 0.0636 0.0507 0.0410 0.0324 0.0248 0.0195 0.0159 0.0127 0.00981 0.00811 0.00628 0.00500 0.00397 0.00312 0.00250

66.5 52.8 41.8 33.2 26.3 20.8 16.5 13.1 10.4 8.26 6.54 5.20 4.11 3.27 2.59 2.06 1.62 1.29 1.0236 0.812 0.641 0.511 0.402 0.324 0.253 0.201 0.162 0.128 0.101 0.0795 0.0633 0.0513 0.0405 0.0310 0.0243 0.0199 0.0158 0.0123 0.0101 0.00785 0.00624 0.00497 0.00390 0.00312

79.8 63.3 50.2 39.8 31.6 25.0 19.8 15.8 12.5 9.91 7.85 6.24 4.94 3.92 3.11 2.47 1.95 1.55 1.23 0.974 0.769 0.613 0.483 0.388 0.304 0.241 0.195 0.153 0.121 0.0953 0.0760 0.0616 0.0486 0.0372 0.0292 0.0238 0.0190 0.0147 0.0122 0.00942 0.00749 0.00596 0.00467 0.00375

106 84.4 66.9 53.1 42.1 33.3 26.5 21.0 16.7 13.2 10.5 8.32 6.58 5.22 4.15 3.29 2.59 2.07 1.64 1.30 1.02 0.817 0.644 0.518 0.405 0.321 0.259 0.204 0.161 0.127 0.101 0.0821 0.0649 0.0497 0.0390 0.0318 0.0253 0.0196 0.0162 0.0126 0.00999 0.00795 0.00623 0.00499

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23

Material Data

Material Properties PERMEABILITY vs. T, B, & f - TYPICAL µ vs. T dynamic range

Permeability (µ)

MPP

High Flux

Kool Mµ®

XFlux®

24

(-50º C TO +100º C) MATERIALS RATED TO 200º C

µ vs. B dynamic range 0 to 400 mT

µ vs. f. flat to...

14µ

0.7%

+0.4%

4 MHz

26µ

0.9%

+0.4%

3 MHz

60µ

1.0%

+0.8%

2 MHz

125µ

1.3%

+1.4%

300 kHz

147µ, 160µ, 173µ

1.5%

+1.9%

200 kHz

200µ

1.6%

+2.8%

100 kHz

300µ

1.6%

+4.5%

90 kHz

550µ

8.7%

+21.0%

20 kHz

14µ

1.5%

+5.0%

3 MHz

26µ

2.0%

+9.0%

1.5 MHz

60µ

2.6%

+13.5%

1 MHz

125µ

3.6%

+19.0%

700 kHz

147µ

4.8%

+22.0%

500 kHz

160µ

5.5%

+25.0%

400 kHz

26µ

1.7%

+1.0%

2 MHz

40µ

2.2%

+1.1%

1 MHz

60µ

3.4%

+1.4%

900 kHz

75µ

4.5%

+2.0%

500 kHz

90µ

5.2%

+2.8%

500 kHz

125µ

8.3%

+3.4%

300 kHz

26µ

2.5%

-

1MHz

60µ

3.0%

+14.5%

500 kHz

Curie Temperature

Density

Coefficient of Thermal Expansion

MPP

460°C

8.0 grams/cm3

12.9 x 10 -6/°C

High Flux

500°C

7.6 grams/cm3

5.8 x 10 -6/°C

Kool Mµ

500°C

5.5 grams/cm3

10.8 x 10 -6/°C

XFlux

700°C

7.5 grams/cm3

11.6 x 10 -6/°C

MAGNETICS

Material Data

Core Weights Core weights listed in this catalog are for 125µ cores.* To determine weights for other permeabilities, multiply the 125µ weight by the following factors:

Permeability

14µ

26µ

40µ

60µ

75µ

90µ

125µ

147µ 160µ 173µ

200µ 300µ

550µ

x Factor

0.80

0.86

0.90

0.94

0.96

0.97

1.00

1.02

1.03

1.04

*XFlux® is based on 60µ weight. *MPP, High Flux, and Kool Mµ® in sizes 102, 337, and 165 weight based on 26µ.

Unit Conversions To obtain number of

Multiply number of

By

A·T/cm

oersteds

0.795

oersteds

A·T/cm

1.26

tesla

gauss

0.0001

cm2

in2

6.452

cm

circular mils

(5.07)(10-6)

Gauss

mT(milli Tesla)

10

Gauss

Tesla

10,000

2

www.mag-inc.com

25

Material Data

Permeability versus DC Bias Curves MPP Toroids 100% 90%

200µ

70%

173µ

µ 300

0µ

55

% Initial Permeability µi

14µ

26µ

µ

60µ

125

µ 147

80%

160µ

60% 50% 40% 30% 1

10

500

100

H (A·T/cm)

High Flux Toroids 100% 90%

14µ

% Initial Permeability µi

80%

26µ

70%

60µ

60% 125µ 147µ

50%

160µ

40% 30% 100

10

H (A·T/cm)

26

MAGNETICS

500

Material Data

Permeability versus DC Bias Curves Kool Mµ® Toroids 100% 90%

70%

26µ

90µ

75µ

40µ

60µ

60% 125 µ

% Initial Permeability µi

80%

50% 40% 30% 1

100

10

300

H (A·T/cm)

XFlux Toroids ®

100% 90%

% Initial Permeability µi

80% 26µ

70%

125 perm 90 75 60 40 26 14 147 173 160 200 250 300 500 550

60µ

60% 50% 40% 30% 20% 20

600

100

H (A·T/cm) www.mag-inc.com

27

Material Data

Permeability versus DC Bias Curves Kool Mµ® Shapes 100%

90%

% Initial Permeability µi

80%

70%

60%

50%

40%

30%

20%

H (A·T/cm)

MPP THINZ® 100% 90%

% Initial Permeability µi

80% 70%

1

1

60% 50% 40% 30% 20%

5

28

10

MAGNETICS

H (A·T/cm)

60

Material Data

Permeability versus DC Bias Curves Fit Formula - Toroids µeff/µi = a + bH + cH2 + dH3 + eH4

MPP

High Flux

Kool Mµ®

XFlux®

H units: A·T/cm

µi

a

b

c

d

e

14µ

9.985E-01

4.257E-04

-9.611E-06

1.491E-08

-6.250E-12

26µ

9.985E-01

1.142E-03

-3.762E-05

1.222E-07

-1.218E-10

60µ

9.971E-01

2.276E-03

-1.623E-04

1.048E-06

-2.013E-09

125µ

9.966E-01

3.597E-03

-6.530E-04

8.855E-06

-3.569E-08

147µ

9.968E-01

4.036E-03

-9.462E-04

1.560E-05

-7.660E-08

160µ

9.973E-01

3.442E-03

-1.060E-03

1.897E-05

-1.004E-07

173µ

9.987E-01

2.500E-03

-1.152E-03

2.220E-05

-1.305E-07

200µ

9.958E-01

5.128E-03

-1.499E-03

3.055E-05

-1.850E-07

300µ

9.942E-01

9.403E-03

-4.140E-03

1.407E-04

-1.425E-06

550µ

1.025E+00

-1.462E-01

5.685E-03

1.753E-04

-1.038E-05

14µ

1

-3.954E-04

4.270E-07

-6.515E-09

6.938E-12

26µ

1

-8.078E-05

-1.111E-05

2.344E-08

-1.392E-11

60µ

1

9.701E-04

-7.570E-05

3.849E-07

-5.977E-10

125µ

1

1.236E-04

-2.238E-04

2.065E-06

-5.613E-09

147µ

1

3.976E-04

-3.580E-04

4.116E-06

-1.382E-08

160µ

1

3.016E-03

-5.897E-04

8.228E-06

-3.502E-08

26µ

1

-1.248E-03

-2.020E-05

8.354E-08

-9.503E-11

40µ

1

-2.799E-03

-3.312E-05

2.126E-07

-3.466E-10

60µ

1

-4.445E-03

-8.763E-05

9.446E-07

-2.616E-09

75µ

1

-6.120E-03

-1.380E-04

1.943E-06

-6.956E-09

90µ

1

-9.031E-03

-1.218E-04

2.254E-06

-9.287E-09

125µ

1

-9.918E-03

-5.044E-04

1.267E-05

-8.284E-08

26µ

9.970E-01

5.006E-04

-1.510E-05

3.917E-08

-3.396E-11

60µ

9.887E-01

2.740E-03

-1.091E-04

6.052E-07

-1.058E-09

www.mag-inc.com

29

Material Data

Core Loss Density Curves MPP 14µ 10000 300

1000

3

Core Loss (mW/cm )

100

kHz

kHz

Hz

50 k

100

Hz

20 k

10

Hz

10 k

z

5 kH

1

z

2 kH

0.1

PL = 115.9B2.5f1.87 0.01 0.01

0.1

0.7

Flux Density (Tesla)

High Flux 14µ 3000

Core Loss (mW/cm3)

1000

100

300 khz 100 khz 50 khz 25 khz 20 khz 10 khz 5 khz 2 khz 100 hz 60 hz 500 hz

100

kHz Hz

50 k

Hz

20 k

10

kHz

z

5 kH

10 z

2 kH

z

1 kH

1

100

Hz

z

60 H

0.1 0.01

0.1

Flux Density (Tesla)

30

MAGNETICS 300 khz

PL = 388.8B2.31f1.54 1

Material Data

Core Loss Density Curves MPP 26µ 10000

1000

Core Loss (mW/cm3)

kHz

300

100

100

kHz Hz

50 k

Hz

20 k

10

Hz

10 k

z

5 kH

1

PL = 70.83B2.34f1.65 0.1

0.01

0.1

0.7

Flux Density (Tesla)

High Flux 26µ 3000

Core Loss (mW/cm3)

1000

300 khz 100 khz 50 khz 25 khz 20 khz 10 khz 5 khz 100 kHz 2 khz z 100 hz 50 kH 60 hz 500 hz kHz 20

100

Hz

10 k

Hz

5k

10

Hz

2k

z

1 kH

1 100

Hz

z 60 H

0.1 0.01

0.1

PL = 374.9B2.21f1.49 1

Flux Density (Tesla)

300 khz 100 khz

www.mag-inc.com

31

Material Data

Core Loss Density Curves MPP 60µ 10000

1000

Core Loss (mW/cm3)

300 100

100

kHz kHz

Hz

50 k

Hz

20 k

Hz

10 k

10

z

5 kH

PL = 357.1B2.05f1.12 1

0.01

0.1

0.7

Flux Density (Tesla)

High Flux 60µ 3000 100

1000

kHz

Hz

Core Loss (mW/cm3)

50 k

Hz

20 k

100

Hz

10 k

300 khz 100 khz 50 khz 25 khz 20 khz 10 khz 5 khz 2 khz 1 khz 100 hz 60 hz 500 hz

z

5 kH

10

z

2 kH

z

1 kH

1 100

Hz

z

0.1

60 H

0.01

0.1

Flux Density (Tesla)

32

MAGNETICS

300 khz 100 khz

PL = 492B2.22f1.32 1

Material Data

Core Loss Density Curves MPP 125µ 10000 Hz

300 k

1000

Core Loss (mW/cm3)

Hz

100 k

100

z

50 kH

Hz

25 k

10

z

10 kH

z

5 kH

1

z

2 kH

z

1 kH

0.1

500

0.01

Hz

PL = 53.05B2.06f1.56

0.01

0.1

1

Flux Density (Tesla)

High Flux 125µ 3000

Core Loss (mW/cm3)

1000

300 khz 100 khz 50 khz 25 khz 20 khz 10 khz 5 khz z H k 2 khz 100 1 khz Hz 100 hz k 0 5 60 hz z H500 hz k 0 2

100

10

kHz z

5 kH

10

z

2 kH

Hz

1k

1

100

0.1

0.01

Hz

z

60 H

0.1

PL = 246B2.23f1.47 1

Flux Density (Tesla)

300 khz 100 khz

www.mag-inc.com

33

Material Data

Core Loss Density Curves MPP 147µ, 160µ, 173µ 10000

Core Loss (mW/cm3)

1000

Hz

300 k

Hz

100

100 k

z

50 kH

z

25 kH

10

z

10 kH

5 kHz

1

z

2 kH

0.1

z

1 kH

500

0.01

PL = 52.16B2f1.57

Hz

0.01

0.1

0.7

Flux Density (Tesla)

High Flux 147µ, 160µ 3000 1000

100

Core Loss (mW/cm3)

50

100

20

10

kHz

kHz

300 khz 100 khz 50 khz 25 khz 20 khz 10 khz 5 khz 2 khz 1 khz 100 hz 60 hz 500 hz

kHz

kHz z

5 kH

10

z

2 kH

z

1 kH

1

PL = 447.6B2.3f1.41

z

0.1

H 100

0.01

0.1

1

Flux Density (Tesla)

34

MAGNETICS

500 khz 300 khz 200 khz 100 khz

100 perm 50 20

Material Data

Core Loss Density Curves MPP 200µ, 300µ 10000 kHz

300

1000

Core Loss (mW/cm³)

100

kHz z

50 kH

100

z

25 kH

10

z

10 kH

z

5 kH

1

z

2 kH

z

1 kH

0.1

0.01

500

0.01

Hz

PL = 37.97B2.09f1.68 0.1

0.7

Flux Density (Tesla)

300 khz 100 khz 50 khz 25 khz 20 khz 10 khz 5 khz 2 khz 1 khz 100 hz 60 hz 500 hz

MPP 550µ 10000

Core Loss (mW/cm3)

1000

Hz

300 k

100

100

kHz

Hz

50 k

z

25 kH

10

z

10 kH

z

5 kH

1

z

2 kH

z

1 kH

0.1 0.01

500

Hz

PL = 181B2.13f1.47

0.01

0.1

0.7

Flux Density (Tesla) 500 khz 300 khz 200 khz

www.mag-inc.com

35

Material Data

Core Loss Density Curves Kool Mµ® 26µ, 40µ 10000

200

Core Loss (mW/cm3)

1000

100

50

100

25

kHz kHz

kHz kHz

10

PL = 120B2.09f1.46 1

0.01

0.1

1

Flux Density (Tesla)

Kool Mµ® 60µ, 75µ, 90µ 10000 kHz

500 300

Core Loss (mW/cm3)

1000

200 100

50

100

25

kHz kHz kHz

300 khz 200 khz 100 khz 50 khz 25 khz 20 khz 10 khz 5 khz 2 khz 1 khz 100 hz 60 hz 500 hz

kHz

kHz

10

PL = 193B2.01f1.29 1

0.01

0.1

Flux Density (Tesla)

36

MAGNETICS

500 khz 300 khz 200 khz

1

Material Data

Core Loss Density Curves Kool Mµ® 125µ 10000 500 300

Core Loss (mW/cm3)

1000

200 100

100 50

kHz kHz

kHz kHz

kHz

25

kHz

10

PL = 91.58B2.2f1.63 1

0.01

0.1

1

Flux Density (Tesla) 500 khz 300 khz 200 khz 100 khz 50 khz 25 khz 20 khz 10 khz 5 khz 2 khz 1 khz 100 hz 60 hz 500 hz

www.mag-inc.com

37

Material Data

Core Loss Density Curves XFlux® 26µ 3000

PL = 510 (B1.830)(f1.180) for 1kHz-20kHz PL = 335 (B1.825)(f1.332) for 20kHz-100kHz

Core Loss (mW/cm³)

1000

z

kH

100

50

z

kH

30

z

kH

20

z

kH

16

z

kH

10

z

kH

Hz

5k

Hz

2k

Hz

1k

100

10 0.01

0.1

0.6

Flux Density (Tesla)

XFlux® 60µ 4000

PL = 505 (B1.865)(f1.152) for 1kHz-10kHz PL = 385 (B1.865)(f1.282) for 10kHz-100kHz

Core Loss (mW/cm³)

1000

100

z

kH

50

z

kH

30

z

kH

20

z

kH

16

z

kH

10

z

kH

Hz

5k

Hz

2k

Hz

1k

100

10 0.01

0.1

Flux Density (Tesla)

38

MAGNETICS

0.6

Material Data

DC Magnetization Curves MPP 0.8 0.7

0.5

0µ

55

173

147

125 µ µ

160

µ

µ

µ

30

0µ

0.4

200

Flux Density (Tesla)

0.6

0.3

60µ

0.2

26µ

0.1

14µ

0 1

10

100

800

Magnetizing Force (A·T/cm)

High Flux

Flux Density (Tesla)

1.5 1.4 1.3 1.2 1.1

0µ , 16

µ 147

5µ

12

1.0 0.9 0.8

125 perm 90 75 60 40 26 14 147 173 160 200 250 300 500 550

µ

60

0.7 0.6 0.5 0.4

µ

26

14µ

0.3 0.2 0.1 0 1

10

100

800

Magnetizing Force (A·T/cm) www.mag-inc.com

39

Material Data

DC Magnetization Curves Kool Mµ® 1.1 1.0

µ 125

0.9

90µ 75µ

µ

60

0.7

µ

40

0.6

µ

0.5

26

Flux Density (Tesla)

0.8

0.4 0.3 0.2 0.1 0 10

1

100

800

Magnetizing Force (A·T/cm)

XFlux® 1 0.9

60µ

0.8

Flux Density (Tesla)

0.7 0.6

125 perm 90 75 60 40 26 14 147 173 160 200 250 300 550

26µ

0.5 0.4 0.3 0.2 0.1 0

10

1

300

100

Magnetizing Force (A·T/cm)

40

MAGNETICS

125 perm 90 75

Material Data

DC Magnetization Curves

41- old 3 - 35

Fit Formula

B=#

a + bH + cH 2 &x Units:B in Tesla; H in A $ Turns/cm 1+ dH + eH 2 where:

MPP

High Flux

Kool Mµ®

XFlux®

µ

a

b

c

d

e

x

14µ

-7.507E+00

6.573E+00

4.619E-01

7.777E+01

4.987E-01

2

26µ

6.679E-02

1.105E-02

-1.136E-05

1.112E-02

-1.233E-05

2

60µ

8.146E-02

2.345E-02

6.032E-05

2.476E-02

7.185E-05

2

125µ

6.420E-04

-6.271E-04

3.253E-04

9.901E-03

5.366E-04

0.5

147µ

6.530E-04

-7.301E-04

4.516E-04

1.583E-02

7.185E-04

0.5

160µ

4.470E-04

-5.579E-04

5.211E-04

1.002E-02

8.164E-04

0.5

173µ

5.450E-04

-7.716E-04

6.506E-04

6.875E-03

1.019E-03

0.5

200µ

1.001E-03

-1.450E-03

9.127E-04

6.057E-03

1.428E-03

0.5

300µ

9.400E-04

-1.543E-03

1.990E-03

2.400E-02

3.073E-03

0.5

550µ

7.300E-04

-1.509E-03

6.482E-03

6.371E-02

9.933E-03

0.5

14µ

-5.945E-02

8.703E-03

3.623E-04

5.290E-02

3.474E-04

2

26µ

-4.067E-02

1.637E-02

3.742E-04

5.316E-02

3.413E-04

2

60µ

-1.695E-01

1.215E-01

1.213E-02

6.938E-01

1.016E-02

2

125µ

5.320E-04

-6.811E-04

3.506E-04

1.052E-02

1.694E-04

0.5

147µ

2.670E-04

-7.829E-04

5.290E-04

2.215E-03

2.606E-04

0.5

160µ

2.670E-04

-7.829E-04

5.290E-04

2.215E-03

2.606E-04

0.5

26µ

5.868E-05

9.362E-05

9.011E-06

-3.682E-04

8.747E-06

0.5

40µ

8.870E-05

5.592E-05

2.700E-05

2.928E-04

2.574E-05

0.5

60µ

1.658E-04

2.301E-05

7.297E-05

5.906E-03

6.053E-05

0.5

75µ

1.433E-05

9.724E-05

1.323E-04

7.255E-03

1.131E-04

0.5

90µ

5.660E-04

-1.216E-04

1.974E-04

7.278E-03

1.698E-04

0.5

125µ

7.808E-05

5.088E-04

2.595E-04

3.922E-03

2.285E-04

0.5

26µ

4.445E-02

2.547E-02

5.153E-04

9.162E-02

3.510E-04

2

60µ

2.455E-02

8.789E-02

6.444E-03

4.188E-01

4.668E-03

2

www.mag-inc.com

41

Material Data

Permeability versus Temperature Curves MPP (14µ-300µ) 3% 00µ -3 µ 173 µ7 4 1 µ 125

+/- % Initial Permeability µi

µ 200

2%

60µ 26µ 14µ

1%

0%

-1% -60

-40

-20

0

20

40

60

80

100

120

140

160

180

200

Temperature (˚C)

125 perm 90 75 60 40 26 14 147 173 160 200 250 300 500 550

MPP (550µ) 18% 16%

+/- % Initial Permeability µi

14% 12%

14µ

10% 8%

µ

550

6% 4% 2% -0% -2% -4%

-60

-40

-20

0

20

40

60

80

100

120

140

160

180

Temperature (˚C)

42

MAGNETICS

125 perm 90 75 60

200

Material Data

Permeability versus Temperature Curves High Flux 8%

+/- % Initial Permeability µi

6%

160µ 147µ

4%

125µ

2%

26µ 14µ

60µ

0%

-2% -4% -60

-40

-20

0

20

40

60

80

100

120

140

160

180

200

Temperature (˚C) 125 perm 90 75 60 40 26 14 147 173 160 200 250 300 500 550

Kool Mµ® 2%

-2%

26µ

µ

-8%

90µ

75µ

-6%

60µ 40µ

-4%

125

+/- % Initial Permeability µi

0%

-10% -12%

-60

-40

-20

0

20

40

60

80

100

120

140

160

180

200

Temperature (˚C) www.mag-inc.com

43

125 perm 90 75 60

Material Data

Permeability versus Temperature Curves XFlux® 5.0%

+/- % Initial Permeability µi

4.0% 3.0% 60µ

2.0% 26µ

1.0% 0.0% -1.0% -2.0%

-50

0

50

100

150

200

Temperature (˚C)

60µ XFLUX Toroid:

[% change in µi] = -4.010x10-3 + (1.553x10-4)(T) + (1.875x10-8)(T2) + (3.907x10-9)(T3) + (1.213x10-11)(T4)

26µ XFLUX Toroid:

[% change in µi] = -3.879x10-3 + (1.356x10-4)(T) + (1.228x10-7)(T2) + (1.739x10-9)(T3) + (4.35x10-12)(T4)

44

MAGNETICS

125 perm 90 75 60 40 26 14 147 173 160 200 250 300 500 550

Material Data

Permeability versus Temperature Curves 44 - old 3 - 35 Fit Formula µ T - µ 25˚C 2 µ 25˚C = a + bT + cT

Change compared with µ 25˚C = where: µ

a

b

c

14µ

-1.300E-03

4.750E-05

1.300E-07

26µ

-1.431E-03

5.265E-05

1.837E-07

60µµ T - µ 25˚C -1.604E-03 Change compared with µ 25˚C = = a + bT -1.939E-03 + cT 2 + dT 3 + eT 4 125µ µ

5.945E-05

1.875E-07

7.013E-05

2.967E-07

where:

25˚C

147µ

-2.308E-03

8.497E-05

2.943E-07

160

-2.308E-03

8.497E-05

2.943E-07

173µ

-2.308E-03

8.497E-05

2.943E-07

200µ

-2.528E-03

9.211E-05

3.601E-07

300µ

-2.528E-03

9.211E-05

3.601E-07

550µ

-1.309E-02

4.716E-04

2.086E-06

14µ

-2.500E-03

9.670E-05

5.560E-08

26µµ T - µ 25˚C -3.300E-03 = a + bT + cT 2 Change compared with µ 25˚C =60µ µ -4.400E-03

1.290E-04

3.800E-08

1.740E-04

4.090E-08

MPP

44 - old 3 - 35

High where: Flux

25˚C

125µ

-6.000E-03

2.400E-04

3.220E-08

147µ

-7.900E-03

3.140E-04

7.310E-08

160µ

-9.200E-03

3.670E-04

1.750E-08

Change compared with µ 25˚C =

µ T - µ 25˚C 2 3 4 µ 25˚C = a + bT + cT + dT + eT

where:

Kool Mµ®

XFlux®

µ

a

b

c

d

e

26µ

-4.289E-03

2.521E-04

-3.557E-06

1.384E-08

-2.066E-11

40µ

-5.034E-03

3.521E-04

-6.797E-06

3.193E-08

-4.916E-11

6­­0µ

-8.841E-03

5.197E-04

-7.064E-06

1.667E-08

8.820E-12

75µ

-1.174E-02

6.653E-04

-8.195E-06

1.411E-08

3.032E-11

90µ

-1.369E-02

7.705E-04

-9.385E-06

1.812E-08

2.524E-11

125µ

-1.647E-02

9.306E-04

-1.132E-05

1.623E-08

5.722E-11

26µ

-3.879E-03

1.356E-04

1.228E-07

-1.739E-09

4.35E-12

60µ

-4.010E-03

1.553E-04

-1.875E-08

3.907E-09

-1.213E-11

www.mag-inc.com

45

Material Data

Permeability versus AC Flux Curves MPP (14µ - 300µ) 5% 30

0µ

+/- % Initial Permeability µi

4% 3%

200

µ

2%

147 125 µ

1%

µ-1 73µ

60µ 26µ

, 14

0%

µ

-1% -2% 0.001

0.01

0.2

0.1

AC Flux Density (Tesla) 125 perm 90 75 60 40 26 14 147 173 160 550 µ 200 250 300 500 550

MPP (550µ) 22% 20% 18%

+/- % Initial Permeability µi

16% 14% 12% 10% 8% 6% 4% 2% 0% -2% 0.001

0.01

0.1

0.2

AC Flux Density (Tesla)

46

MAGNETICS

125 perm 90 75 60

Material Data

Permeability versus AC Flux Curves High Flux 26% 24%

160µ

22% 147µ

+/- % Initial Permeability µi

20% 18%

125µ

16% 14%

60µ

12% 10%

26µ

8% 6%

14µ

4% 2% 0%

0.001

0.01

0.1

AC Flux Density (Tesla)

0.6

125 perm 90 75 60 40 26 14 147 173 160 200 250 300 500 550

Kool Mµ® 4% µ

125

+/- % Initial Permeability µi

3%

90µ

2%

75µ 60µ

1%

40µ 26µ

0%

-1%

0.001

0.01

0.1

0.4

AC Flux Density (Tesla)

www.mag-inc.com

47

125 perm 90 75

Material Data

Permeability versus AC Flux Curves XFlux® 7.0% µ

60

+/- % Initial Permeability µi

6.0% 5.0% 4.0%

26µ

3.0% 2.0% 1.0% 0.0%

0.001

0.01

AC Flux Density (Tesla)

0.1

60µ XFLUX Toroid:

[% change in µi] = -1.584x10-3 + (7.074x10-1)(B) + (-2.782)(B2) + (4.403)(B3) + (-2.621)(B4)

26µ XFLUX Toroid:

[% change in µi] = -3.846x10-4 + (4.288x10-1)(B) + (-1.853)(B2) + (3.132)(B3) + (-2138)(B4)

48

MAGNETICS

1

125 perm 90 75 60 40 26 14 147 173 160 200 250 300 500 550

Material Data

Permeability versus AC Flux Curves 49 - old 3 - 24 Fit Formula

! µ i = Q a + bB + cB 2 + dB 3 + eB 4 V

Units:B in Tesla

where:

MPP

High Flux

Kool Mµ®

XFlux®

µ

a

b

c

d

e

14µ

-5.000E-04

1.186E-01

-5.096E-01

-2.727E+00

0

26µ

-5.000E-04

1.186E-01

-5.096E-01

-2.727E+00

0

60µ

-1.000E-03

1.708E-01

-6.675E-01

-1.792E+00

0

125µ

-1.000E-03

2.960E-01

-1.561E+00

8.254E-01

0

147µ

-2.000E-03

4.393E-01

-2.591E+00

3.446E+00

0

160µ

-2.000E-03

4.393E-01

-2.591E+00

3.446E+00

0

173µ

-2.000E-03

4.393E-01

-2.591E+00

3.446E+00

0

200µ

-1.000E-03

5.145E-01

-2.688E+00

3.308E+00

0

300µ

-2.000E-03

9.038E-01

-5.112E+00

7.055E+00

0

550µ

-9.000E-03

4.042E+00

-2.240E+01

3.123E+01

0

14µ

-1.000E-03

5.458E-01

-1.930E+00

2.598E+00

-1.228E+00

26µ

-2.000E-03

1.020E+00

-3.696E+00

5.099E+00

-2.529E+00

60µ

0

1.476E+00

-5.695E+00

9.395E+00

-6.182E+00

125µ

0

1.934E+00

-6.792E+00

1.014E+01

-6.347E+00

147µ

0

2.350E+00

-8.895E+00

1.465E+01

-9.716E+00

160µ

-2.000E-03

2.910E+00

-1.224E+01

2.263E+01

-1.590E+01

26µ

-1.300E-03

4.711E-01

-5.779E+00

2.102E+01

-2.121E+01

40µ

-2.000E-03

5.866E-01

-7.404E+00

2.883E+01

-3.397E+01

60µ

-1.900E-03

7.340E-01

-9.824E+00

4.486E+01

-7.157E+01

75µ

-2.800E-03

1.024E+00

-1.333E+01

5.704E+01

-8.069E+01

90µ

-2.800E-03

1.430E+00

-2.092E+01

1.115E+02

-2.135E+02

125µ

-2.400E-03

1.740E+00

-2.662E+01

1.531E+02

-3.170E+02

26µ

-3.846E-04

4.288E-01

-1.853E+00

3.132E+00

-2.138E+00

60µ

-1.584E-03

7.074E-01

-2.782E+00

4.403E+00

-2.621E+00

www.mag-inc.com

49

Material Data

Permeability versus Frequency Curves MPP 0 14µ 26µ

-5%

60

+/- % Initial Permeability µi

µ

-10% 125

µ

-15%

147

2

µ 173 µ160 00µ

µ

-20% 0µ

30

-25% µ

550

-30% 0.01

0.1

Frequency (MHz)

1

10

High Flux 0% 60µ

+/- % Initial Permeability µi

-10%

147 µ

- 16

0µ

125 µ

14µ 26µ

125 perm 90 75 60 40 26 14 147 173 160 200 250 300 500 550

-20%

-30%

-40%

-50% 0.01

50

0.1

MAGNETICS

Frequency (MHz)

1

10

125 perm 90 75

Material Data

Permeability versus Frequency Curves Kool Mµ® 0% 26µ

+/- % Initial Permeability µi

-5%

75µ 125

- 90

µ

60µ

40µ

µ

-10% -15%

-20% -25%

-30% 0.1

10

1

Frequency (MHz)

XFlux® 0% -5%

26µ

+/- % Initial Permeability µi

-10% 60µ

-15% -20%

125 perm 90 75 60 40 26 14 147 173 160 200 250 300 500 550

-25% -30% -35% -40% -45% -50% 0.1

1

10

Frequency (MHz)

www.mag-inc.com

51

125 perm 90 75 60

Material Data

Permeability versus Frequency Curves

52 - old 3 - 24

Fit Formula ! µ i = a + bf + cf 2 + df 3 + ef 4 Units: f in MHz where:

MPP

High Flux

Kool Mµ®

XFlux®

52

µ

a

b

c

d

e

14µ

0

-2.320E-03

7.630E-04

-5.070E-04

3.170E-05

26µ

0

-1.560E-02

5.190E-03

-1.160E-03

6.230E-05

60µ

0

-1.820E-02

4.320E-03

-9.780E-04

5.360E-05

125µ

0

-8.430E-02

1.590E-02

-2.270E-03

1.080E-04

147µ

0

-1.110E-01

2.040E-02

-2.810E-03

1.300E-04

160µ

0

-1.290E-01

2.390E-02

-3.080E-03

1.410E-04

173µ

0

-1.290E-01

2.390E-02

-3.080E-03

1.410E-04

200µ

0

-1.610E-01

3.820E-02

-5.170E-03

2.160E-04

300µ

0

-2.590E-01

5.570E-02

-6.530E-03

2.780E-04

550µ

0

--4.590E-01

-3.3E+00

8.14E+00

-5.73E+00

14µ

0

-1.070E-02

5.960E-04

-4.920E-04

3.070E-05

26µ

0

-2.560E-02

3.430E-03

-7.340E-04

3.990E-05

60µ

0

-3.870E-02

3.050E-03

-5.490E-04

2.690E-05

125µ

0

-8.600E-02

1.140E-02

-1.370E-03

6.050E-05

147µ

0

-8.170E-02

7.330E-03

-6.400E-04

2.390E-05

160µ

0

-8.590E-02

7.220E-03

-5.530E-04

1.880E-05

26µ

0

-5.500E-03

1.400E-03

-6.200E-04

3.700E-05

40µ

0

-7.300E-03

8.400E-04

-5.900E-04

3.700E-05

60µ

0

-1.100E-02

1.600E-03

-7.100E-04

4.400E-05

75µ

0

-2.000E-02

3.500E-03

-9.500E-04

5.500E-05

90µ

0

-1.500E-02

6.900E-04

-4.800E-04

3.100E-05

125µ

0

-3.000E-02

-5.500E-03

2.400E-04

4.500E-06

26µ

3.000E-04

-3.132E-02

4.902E-03

-1.015E-03

5.543E-05

60µ

6.805E-03

-7.575E-02

1.206E-02

-1.607E-03

7.524E-05

MAGNETICS

Material Data

Notes

www.mag-inc.com

53

0.140” 0.070”

Core Data

3.56 mm OD Core Dimensions

OD(max) ID(min) HT(max)

Before Finish (nominal)

3.56 mm/0.140 in

1.78 mm/0.070 in

1.52 mm/0.060 in

After Finish (limits)

4.20 mm/0.165 in

1.27 mm/0.050 in

2.16 mm/0.085 in

Part Number

AL ± 8%

Permeability (µ)

Kool Mµ AL ± 15%

60 75 90 125 147 160 173 200 300

0.060"

MPP 55140 55139 55138 55134 55137 55135

13 16 19 26 31 33 36 42 62

High Flux -

Physical Characteristics

Kool Mµ® 77141 77445 77444 77140 -

XFlux® -

Winding Turn Length * Reference General Winding Data pages

Window Area Cross Section Path Length Volume Weight- MPP Weight- High Flux Weight- Kool Mµ Weight - XFlux Area Product

1.27 mm2 1.30 mm2 8.06 mm 10.5 mm3 0.094 g 0.065 g 1.65 mm4

Winding Factor 0% 20% 25% 30% 35% 40% 45% 50% 60% 70%

Length/Turn (mm) 7.24 7.56 7.65 7.70 7.81 7.89 7.98 8.08 8.27 8.48

Wound Coil Dimensions OD HT Max OD Max HT

40% Winding Factor Completely Full Window

4.30 mm 2.56 mm 4.95 mm 2.74 mm

Surface Area Unwound Core 40% Winding Factor

60 mm2 70 mm2

Kool Mµ AL vs. DC Bias 28

FOR PLACEMENT ONLY

24

AL (nH/ T 2)

20 16 12 8 4 0

0

54

10

20

30

A·T MAGNETICS

40

50

60

3.94 mm OD Core Dimensions

OD(max) ID(min) HT(max)

Before Finish (nominal)

3.94 mm/0.155 in

2.24 mm/0.088 in

2.54 mm/0.100 in

After Finish (limits)

4.58 mm/0.180 in

1.72 mm/0.068 in

3.18 mm/0.125 in

Permeability (µ)

0.100”

Part Number

AL ± 8% Kool Mµ AL ± 15%

60 75 90 125 147 160 173 200 300

Core Data

0.155” 0.088”

MPP 55150 55149 55148 55144 55147 55145

17 21 25 35 41 45 48 56 84

High Flux -

Physical Characteristics

Kool Mµ® 77151 77155 77154 77150 -

XFlux® -

Winding Turn Length * Reference General Winding Data pages

Window Area Cross Section Path Length Volume Weight- MPP Weight- High Flux Weight- Kool Mµ Weight - XFlux Area Product

2.32 mm2 2.11 mm2 9.42 mm 19.9 mm3 0.17 g 0.12 g 4.90 mm4

Winding Factor 0% 20% 25% 30% 35% 40% 45% 50% 60% 70%

Length/Turn (mm) 9.20 9.64 9.76 9.84 9.98 10.1 10.2 10.3 10.6 10.9

Wound Coil Dimensions OD HT Max OD Max HT

40% Winding Factor Completely Full Window

4.85 mm 3.73 mm 5.77 mm 4.75 mm

Surface Area Unwound Core 40% Winding Factor

90 mm2 110 mm2

AL (nH/ T 2)

Kool Mµ AL vs. DC Bias

0

10

20

30

40

50

A·T www.mag-inc.com

60

70

55

0.183” 0.093”

Core Data

4.65 mm OD Core Dimensions

OD(max) ID(min) HT(max)

Before Finish (nominal)

4.65 mm/0.183 in

2.36 mm/0.093 in

2.54 mm/0.100 in

After Finish (limits)

5.29 mm/0.208 in

1.85 mm/0.073 in

3.18 mm/0.125 in

Part Number

AL ± 8%

Permeability (µ)

Kool Mµ AL ± 15%

60 75 90 125 147 160 173 200 300

MPP 55181 55180 55179 55178 55174 55177 55175

20 25 30 42 49 53 57 67 99

High Flux -

Physical Characteristics Window Area Cross Section Path Length Volume Weight- MPP Weight- High Flux Weight- Kool Mµ Weight - XFlux Area Product

0.100”

Kool Mµ® 77181 77185 77184 77180 -

XFlux® -

Winding Turn Length * Reference General Winding Data pages 2.69 mm 2.85 mm2 10.6 mm 30.3 mm3 0.25 g 0.18 g 7.66 mm4

Winding Factor 0% 20% 25% 30% 35% 40% 45% 50% 60% 70%

2

Length/Turn (mm) 9.79 10.3 10.4 10.5 10.6 10.7 10.9 11.0 11.3 11.6

Wound Coil Dimensions OD HT Max OD Max HT

40% Winding Factor Completely Full Window

5.56 mm 3.73 mm 6.65 mm 4.94 mm

Surface Area Unwound Core 40% Winding Factor

110 mm2 130 mm2

Kool Mµ AL vs. DC Bias 45

FOR PLACEMENT ONLY

40

AL (nH/ T 2)

35 30 25 20 15 10 5 0

0

56

10

20

30

40

50

A·T MAGNETICS

60

70

80

90

6.35 mm OD Core Dimensions

OD(max) ID(min) HT(max)

Before Finish (nominal)

6.35 mm/0.250 in

2.79 mm/0.110 in

2.79 mm/0.110 in

After Finish (limits)

6.99 mm/0.275 in

2.28 mm/0.090 in

3.43 mm/0.135 in

Kool Mµ AL ± 12%

14 26 60 75 90 125 147 160 173 200 300 550

MPP 55023 55022 55021 55020 55019 55018 55014 55017 55015 55016

6 10 24 30 36 50 59 64 69 80 120 220

High Flux 58023 58022 58021 58020 58019 58018 -

Physical Characteristics Window Area Cross Section Path Length Volume Weight- MPP Weight- High Flux Weight- Kool Mµ Weight - XFlux Area Product

Kool Mµ® 77021 77825 77824 77020 -

Winding Factor 0% 20% 25% 30% 35% 40% 45% 50% 60% 70%

Wound Coil Dimensions OD HT Max OD Max HT

Completely Full Window

020

XFlux® -

Winding Turn Length * Reference General Winding Data pages 4.08 mm2 4.70 mm2 13.6 mm 64.0 mm3 0.59 g 0.55 g 0.39 g 19.2 mm4

40% Winding Factor

0.110”

Part Number

AL ± 8%

Permeability (µ)

Core Data

0.250” 0.110”

7.34 mm 4.12 mm 8.81 mm 5.38 mm

Length/Turn (mm) 11.6 12.2 12.3 12.4 12.6 12.8 12.9 13.1 13.4 13.9

Surface Area Unwound Core 40% Winding Factor

170 mm2 200 mm2

AL (nH/ T 2)

Kool Mµ AL vs. DC Bias

0

10

20

30

40

50

60

70

80

A·T www.mag-inc.com

90

100

57

0.260” 0.105”

Core Data

6.60 mm OD Core Dimensions

OD(max) ID(min) HT(max)

Before Finish (nominal)

6.60 mm/0.260 in

2.67 mm/0.105 in

2.54 mm/0.100 in

After Finish (limits)

7.24 mm/0.285 in

2.15 mm/0.085 in

3.18 mm/0.125 in

Kool Mµ AL ± 12%

14 26 60 75 90 125 147 160 173 200 300 550

MPP 55243 55242 55241 55240 55239 55238 55234 55237 55235 55236

6 11 26 32 39 54 64 69 75 86 130 242

High Flux 58243 58242 58241 58240 58239 58238 -

Kool Mµ® 77241 77245 77244 77240 -

XFlux® -

Winding Turn Length * Reference General Winding Data pages

Physical Characteristics Window Area Cross Section Path Length Volume Weight- MPP Weight- High Flux Weight- Kool Mµ Weight - XFlux Area Product

240

Part Number

AL ± 8%

Permeability (µ)

0.100”

Winding Factor 0% 20% 25% 30% 35% 40% 45% 50% 60% 70%

3.63 mm² 4.76 mm² 13.6 mm 64.9 mm³ 0.58 g 0.55 g 0.40 g 17.3 mm4

Wound Coil Dimensions OD HT Max OD Max HT

40% Winding Factor Completely Full Window

7.41 mm 3.87 mm 9.12 mm 5.13 mm

Length/Turn (mm) 11.4 12.0 12.2 12.3 12.4 12.6 12.7 12.9 13.2 13.6

Surface Area Unwound Core 40% Winding Factor

170 mm² 190 mm²

Kool Mµ AL vs. DC Bias

AL (nH/ T 2)

FOR PLACEMENT ONLY

0

58

10

20

30

40

50

60

A·T MAGNETICS

70

80

90

100

110

6.60 mm OD Core Dimensions

OD(max) ID(min) HT(max)

Before Finish (nominal)

6.60 mm/0.260 in

2.67 mm/0.105 in

4.78 mm/0.188 in

After Finish (limits)

7.24 mm/0.285 in

2.15 mm/0.085 in

5.42 mm/0.213 in

Kool Mµ AL ± 12%

14 26 60 75 90 125 147 160 173 200 300 550

0.188”

270

Part Number

AL ± 8%

Permeability (µ)

Core Data

0.260” 0.105”

MPP 55273 55272 55271 55270 55269 55268 55264 55267 55265 55266

12 21 50 62 74 103 122 132 144 165 247 466

High Flux 58273 58272 58271 58270 58269 58268 -

Physical Characteristics

Kool Mµ® 77271 77875 77874 77270 -

XFlux® -

Winding Turn Length * Reference General Winding Data pages

Window Area Cross Section Path Length Volume Weight- MPP Weight- High Flux Weight- Kool Mµ Weight - XFlux Area Product

3.63 mm 9.20 mm2 13.6 mm 125 mm3 1.1 g 1.0 g 0.77 g 33.4 mm4 2

Winding Factor 0% 20% 25% 30% 35% 40% 45% 50% 60% 70%

Wound Coil Dimensions OD HT Max OD Max HT

40% Winding Factor Completely Full Window

7.41 mm 6.11 mm 9.17 mm 7.42 mm

Length/Turn (mm) 16.2 16.7 16.9 17.0 17.1 17.3 17.4 17.6 17.9 18.3

Surface Area Unwound Core 40% Winding Factor

230 mm2 260 mm2

AL (nH/ T 2)

Kool Mµ AL vs. DC Bias

0

10

20

30

40

50

60

70

80

A·T www.mag-inc.com

90

100

110

59

0.270” 0.156”

Core Data

6.86 mm OD Core Dimensions

OD(max) ID(min) HT(max)

Before Finish (nominal)

6.86 mm/0.270 in

3.96 mm/0.156 in

5.08 mm/0.200 in

After Finish (limits)

7.50 mm/0.295 in

3.45 mm/0.136 in

5.72 mm/0.225 in

Kool Mµ AL ± 12%

14 26 60 75 90 125 147 160 173 200 300

410

Part Number

AL ± 8%

Permeability (µ)

0.200”

MPP 55413 55412 55411 55410 55409 55408 55404 55407 55405

8 14 33 42 50 70 81 89 95 112 166

High Flux 58413 58412 58411 58410 58409 58408 -

Physical Characteristics

Kool Mµ® 77411 77415 77414 77410 -

XFlux® -

Winding Turn Length * Reference General Winding Data pages

Window Area Cross Section Path Length Volume Weight- MPP Weight- High Flux Weight- Kool Mµ Weight - XFlux Area Product

9.35 mm² 7.25 mm² 16.5 mm 120 mm³ 1.0 g 0.94 g 0.74 g 67.8 mm4

Winding Factor 0% 20% 25% 30% 35% 40% 45% 50% 60% 70%

Wound Coil Dimensions OD HT Max OD Max HT

40% Winding Factor Completely Full Window

8.06 mm 6.84 mm 9.60 mm 10.0 mm

Length/Turn (mm) 15.5 16.4 16.6 16.8 17.0 17.3 17.5 17.8 18.3 18.9

Surface Area Unwound Core 40% Winding Factor

260 mm2 330 mm2

AL (nH/ T 2)

Kool Mµ AL vs. DC Bias

0

60

20

40

60

80

A·T MAGNETICS

100

120

140

7.87 mm OD Core Dimensions

OD(max) ID(min) HT(max)

Before Finish (nominal)

7.87 mm/0.310 in

3.96 mm/0.156 in

3.18 mm/0.125 in

After Finish (limits)

8.51 mm/0.335 in

3.45 mm/0.136 in

3.81 mm/0.150 in

Kool Mµ AL ± 12%

14 26 60 75 90 125 147 160 173 200 300 550

0.125”

030A2

Part Number

AL ± 8%

Permeability (µ)

Core Data

0.310” 0.156”

6 11 25 31 37 52 62 66 73 83 124 229

MPP 55033 55032 55031 55030 55029 55028 55024 55027 55025 55026

High Flux 58033 58032 58031 58030 58029 58028 -

Physical Characteristics

Kool Mµ® 77031 77835 77834 77030 -

XFlux® -

Winding Turn Length * Reference General Winding Data pages

Window Area Cross Section Path Length Volume Weight- MPP Weight- High Flux Weight- Kool Mµ Weight - XFlux Area Product

9.35 mm² 5.99 mm² 17.9 mm 107 mm³ 0.92 g 0.87 g 0.68 g 56.0 mm4

Winding Factor 0% 20% 25% 30% 35% 40% 45% 50% 60% 70%

Wound Coil Dimensions OD HT Max OD Max HT

40% Winding Factor Completely Full Window

9.07 mm 4.93 mm 11.0 mm 6.73 mm

Length/Turn (mm) 12.7 13.6 13.8 14.0 14.3 14.5 14.7 15.0 15.5 16.1

Surface Area Unwound Core 40% Winding Factor

240 mm2 310 mm2

Kool Mµ AL vs. DC Bias 55 50 45

AL (nH/ T 2)

40 35 30 25 20 15 10 5 0

0

20

40

60

80

100

120

A·T www.mag-inc.com

140

160

61

0.380” 0.188”

Core Data

9.65 mm OD Core Dimensions

OD(max) ID(min) HT(max)

Before Finish (nominal)

9.65 mm/0.380 in

4.78 mm/0.188 in

3.18 mm/0.125 in

After Finish (limits)

10.3 mm/0.405 in

4.26 mm/0.168 in

3.81 mm/0.150 in

Kool Mµ AL ± 12%

14 26 60 75 90 125 147 160 173 200 300 550

280A2

Part Number

AL ± 8%

Permeability (µ)

0.125”

6 11 25 32 38 53 63 68 74 84 128 232

MPP 55283 55282 55281 55280 55279 55278 55274 55277 55275 55276

High Flux 58283 58282 58281 58280 58279 58278 -

Physical Characteristics

Kool Mµ® 77281 77885 77884 77280 -

XFlux® -

Winding Turn Length * Reference General Winding Data pages

Window Area Cross Section Path Length Volume Weight- MPP Weight- High Flux Weight- Kool Mµ Weight - XFlux Area Product

14.3 mm² 7.52 mm² 21.8 mm 164 mm³ 1.4 g 1.3 g 1.0 g 107 mm4

Winding Factor 0% 20% 25% 30% 35% 40% 45% 50% 60% 70%

Wound Coil Dimensions OD HT Max OD Max HT

40% Winding Factor Completely Full Window

11.0 mm 5.17 mm 13.4 mm 7.44 mm

Length/Turn (mm) 13.6 14.7 15.0 15.3 15.6 15.9 16.2 16.5 17.2 17.9

Surface Area Unwound Core 40% Winding Factor

310 mm2 410 mm2

AL (nH/ T 2)

Kool Mµ AL vs. DC Bias

0

62

20

40

60

80

A·T MAGNETICS

100

120

140

160

9.65 mm OD Core Dimensions

OD(max) ID(min) HT(max)

Before Finish (nominal)

9.65 mm/0.380 in

4.78 mm/0.188 in

3.96 mm/0.156 in

After Finish (limits)

10.3 mm/0.405 in

4.26 mm/0.168 in

4.60 mm/0.181 in

Kool Mµ AL ± 12%

14 26 60 75 90 125 147 160 173 200 300 550

MPP 55293 55292 55291 55290 55289 55288 55284 55287 55285 55286

7 14 32 40 48 66 78 84 92 105 159 290

Winding Factor 0% 20% 25% 30% 35% 40% 45% 50% 60% 70%

Wound Coil Dimensions OD HT Max OD Max HT

Completely Full Window

Kool Mµ® 77291 77295 77294 77290 -

XFlux® -

Winding Turn Length * Reference General Winding Data pages 14.3 mm2 9.45 mm2 21.8 mm 206 mm3 1.8 g 1.7 g 1.4 g 135 mm4

40% Winding Factor

290A2

High Flux 58293 58292 58291 58290 58289 58288 -

Physical Characteristics Window Area Cross Section Path Length Volume Weight- MPP Weight- High Flux Weight- Kool Mµ Weight - XFlux Area Product

0.156”

Part Number

AL ± 8%

Permeability (µ)

Core Data

0.380” 0.188”

11.0 mm 5.96 mm 13.4 mm 8.20 mm

Length/Turn (mm) 15.2 16.4 16.6 16.9 17.2 17.4 17.8 18.1 18.7 19.5

Surface Area Unwound Core 40% Winding Factor

350 mm² 450 mm²

AL (nH/ T 2)

Kool Mµ AL vs. DC Bias

0

20

40

60

80

100

120

140

A·T www.mag-inc.com

160

180

63

0.400” 0.200”

Core Data

10.2 mm OD Core Dimensions

OD(max) ID(min) HT(max)

Before Finish (nominal)

10.2 mm/0.400 in

5.08 mm/0.200 in

3.96 mm/0.156 in

After Finish (limits)

10.8 mm/0.425 in

4.57 mm/0.180 in

4.60 mm/0.181 in

Kool Mµ AL ± 12%

14 26 60 75 90 125 147 160 173 200 300 550

MPP 55043 55042 55041 55040 55039 55038 55034 55037 55035 55036

7 14 32 40 48 66 78 84 92 105 159 290

High Flux 58043 58042 58041 58040 58039 58038 -

Physical Characteristics Window Area Cross Section Path Length Volume Weight- MPP Weight- High Flux Weight- Kool Mµ Weight - XFlux Area Product

Winding Factor 0% 20% 25% 30% 35% 40% 45% 50% 60% 70%

Wound Coil Dimensions OD HT Max OD Max HT

Completely Full Window

Kool Mµ® 77041 77845 77844 77040 -

XFlux® -

Winding Turn Length * Reference General Winding Data pages 16.4 mm² 9.57 mm² 23.0 mm 220 mm³ 1.9 g 1.8 g 1.5 g 156 mm4

40% Winding Factor

040A2

Part Number

AL ± 8%

Permeability (µ)

0.156”

11.5 mm 5.96 mm 14.1 mm 8.46 mm

Length/Turn (mm) 15.4 16.6 16.9 17.1 17.5 17.8 18.1 18.4 19.2 20.0

Surface Area Unwound Core 40% Winding Factor

370 mm2 480 mm2

AL (nH/ T 2)

Kool Mµ AL vs. DC Bias

0

64

20

40

60

80

100

A·T MAGNETICS

120

140

160

180

11.2 mm OD Core Dimensions

OD(max) ID(min) HT(max)

Before Finish (nominal)

11.2 mm/0.440 in

6.35 mm/0.250 in

3.96 mm/0.156 in

After Finish (limits)

11.9 mm/0.465 in

5.84 mm/0.230 in

4.60 mm/0.181 in

Kool Mµ AL ± 12%

14 26 60 75 90 125 147 160 173 200 300

MPP 55133 55132 55131 55130 55129 55128 55124 55127 55125

6 11 26 32 38 53 63 68 74 85 127

High Flux 58133 58132 58131 58130 58129 58128 -

Physical Characteristics Window Area Cross Section Path Length Volume Weight- MPP Weight- High Flux Weight- Kool Mµ Weight - XFlux Area Product

0.156”

130A2

Part Number

AL ± 8%

Permeability (µ)

Core Data

0.440” 0.250”

Kool Mµ® 77131 77335 77334 77130 -

XFlux® -

Winding Turn Length * Reference General Winding Data pages 26.8 mm² 9.06 mm² 26.9 mm 244 mm² 2.1 g 2.0 g 1.5 g 243 mm4

Winding Factor 0% 20% 25% 30% 35% 40% 45% 50% 60% 70%

Wound Coil Dimensions OD HT Max OD Max HT

40% Winding Factor Completely Full Window

12.9 mm 6.53 mm 15.7 mm 8.97 mm

Length/Turn (mm) 15.2 16.7 17.0 17.4 17.8 18.1 18.6 19.0 19.9 20.9

Surface Area Unwound Core 40% Winding Factor

420 mm2 600 mm2

AL (nH/ T 2)

Kool Mµ AL vs. DC Bias

0

20

40

60

80

100

120

140

160

A·T www.mag-inc.com

180

200

220

65

0.500” 0.300”

Core Data

12.7 mm OD Core Dimensions

OD(max) ID(min) HT(max)

Before Finish (nominal)

12.7 mm/0.500 in

7.62 mm/0.300 in

4.75 mm/0.187 in

After Finish (limits)

13.5 mm/0.530 in

6.98 mm/0.275 in

5.52 mm/0.217 in

Permeability (µ)

AL ± 8%

14 26 60 75 90 125 147 160 173 200 300 550

6.4 12 27 34 40 56 67 72 79 90 134 255

0.187”

050A2

Part Number MPP 55053 55052 55051 55050 55049 55048 55044 55047 55045 55046

High Flux 58053 58052 58051 58050 58049 58048 -

Kool Mµ® 77052 77051 77055 77054 77050 -

XFlux® 78052 78051 -

Winding Turn Length * Reference General Winding Data pages

Physical Characteristics Window Area Cross Section Path Length Volume Weight- MPP Weight- High Flux Weight- Kool Mµ Weight - XFlux Area Product

Winding Factor 0% 20% 25% 30% 35% 40% 45% 50% 60% 70%

38.3 mm 10.9 mm2 31.2 mm 340 mm3 3.1 g 2.9 g 2.2 g 2.5 g 417 mm4 2

Wound Coil Dimensions OD HT Max OD Max HT

40% Winding Factor Completely Full Window

14.6 mm 7.66 mm 18.2 mm 11.5 mm

Length/Turn (mm) 17.5 19.3 19.8 20.1 20.7 21.1 21.7 22.1 23.2 24.5

Surface Area Unwound Core 40% Winding Factor

560 mm2 800 mm2

AL (nH/ T 2)

Kool Mµ AL vs. DC Bias

0

66

20

40

60

80

100

120

A·T MAGNETICS

140

160

180

200

220

240

16.6 mm OD Core Dimensions

OD(max) ID(min) HT(max)

Before Finish (nominal)

16.6 mm/0.653 in

10.2 mm/0.400 in

6.35 mm/0.250 in

After Finish (limits)

17.3 mm/0.680 in

9.52 mm/0.375 in

7.12 mm/0.280 in

Permeability (µ)

AL ± 8%

14 26 60 75 90 125 147 160 173 200 300 550

8 15 35 43 52 72 88 92 104 115 173 317

Core Data

0.653” 0.400”

0.250”

55120A2

Part Number MPP 55123 55122 55121 55120 55119 55118 55114 55117 55115 55116

High Flux 58123 58122 58121 58120 58119 58118 -

Physical Characteristics

Kool Mµ® 77121 77225 77224 77120 -

XFlux® 78122 78121 -

Winding Turn Length * Reference General Winding Data pages

Window Area Cross Section Path Length Volume Weight- MPP Weight- High Flux Weight- Kool Mµ Weight - XFlux Area Product

71.2 mm 19.2 mm2 41.2 mm 791 mm3 6.8 g 6.3 g 5.0 g 5.6 g 1,370 mm4

Winding Factor 0% 20% 25% 30% 35% 40% 45% 50% 60% 70%

2

Wound Coil Dimensions OD HT Max OD Max HT

40% Winding Factor Completely Full Window

18.8 mm 10.1 mm 23.7 mm 15.2 mm

Length/Turn (mm) 22.1 24.6 25.2 25.6 26.4 27.0 27.7 28.4 29.8 31.5

Surface Area Unwound Core 40% Winding Factor

920 mm2 1,300 mm2

AL (nH/ T 2)

Kool Mµ AL vs. DC Bias 75 70 65 60 55 50 45 40 35 30 25 20 15 10 5 0

0

30

60

90

120

150

180

210

240

A·T www.mag-inc.com

270

300

330

67

0.680” 0.380”

Core Data

17.3 mm OD Core Dimensions

OD(max) ID(min) HT(max)

Before Finish (nominal)

17.3 mm/0.680 in

9.65 mm/0.380 in

6.35 mm/0.250 in

After Finish (limits)

18.1 mm/0.710 in

9.01 mm/0.355 in

7.12 mm/0.280 in

Permeability (µ)

AL ± 8%

14 26 60 75 90 125 147 160 173 200 300

10 19 43 53 64 89 105 114 123 142 214

MPP 55383 55382 55381 55380 55379 55378 55374 55377 55375

High Flux 58383 58382 58381 58380 58379 58378 -

63.8 mm 23.2 mm2 41.4 mm 960 mm3 8.2 g 7.7 g 5.9 g 7.2 g 1,480 mm4

Winding Factor 0% 20% 25% 30% 35% 40% 45% 50% 60% 70%

Wound Coil Dimensions OD HT Max OD Max HT

Completely Full Window

Kool Mµ® 77381 77385 77384 77380 -

XFlux® 78382 78381 -

Winding Turn Length * Reference General Winding Data pages 2

40% Winding Factor

55380A2

Part Number

Physical Characteristics Window Area Cross Section Path Length Volume Weight- MPP Weight- High Flux Weight- Kool Mµ Weight - XFlux Area Product

0.250”

19.6 mm 10.1 mm 24.9 mm 16.3 mm

Length/Turn (mm) 23.2 25.6 26.2 26.6 27.4 28.0 28.6 29.3 30.8 32.4

Surface Area Unwound Core 40% Winding Factor

990 mm2 1,400 mm2

AL (nH/ T 2)

Kool Mµ AL vs. DC Bias

0

68

40

80

120

160

200

A·T MAGNETICS

240

280

320

360

20.3 mm OD Core Dimensions

OD(max) ID(min) HT(max)

Before Finish (nominal)

20.3 mm/0.800 in

12.7 mm/0.500 in

6.35mm/0.250 in

After Finish (limits)

21.1 mm/0.830 in

12.0 mm/0.475 in

7.12 mm/0.280 in

Permeability (µ)

AL ± 8%

14 26 40 60 75 90 125 147 160 173 200 300 550

7.8 14 21 32 41 49 68 81 87 96 109 163 320

Core Data

0.800” 0.500”

0.250”

55206A2

Part Number MPP 55209 55208 55848 55206 55205 55204 55200 55203 55201 55202

High Flux 58209 58208 58848 58206 58205 58204 -

Physical Characteristics

Kool Mµ® 77847 77848 77211 77210 77206 -

XFlux® 78208 78848 -

Winding Turn Length * Reference General Winding Data pages

Window Area Cross Section Path Length Volume Weight- MPP Weight- High Flux Weight- Kool Mµ Weight - XFlux Area Product

114 mm 22.1 mm2 50.9 mm 1,120 mm3 9.4 g 8.9 g 7.1 g 7.9 g 2,520 mm4

Winding Factor 0% 20% 25% 30% 35% 40% 45% 50% 60% 70%

2

Wound Coil Dimensions OD HT Max OD Max HT

40% Winding Factor Completely Full Window

22.9 mm 10.7 mm 29.2 mm 17.4 mm

Length/Turn (mm) 23.3 26.4 27.2 27.8 28.8 29.5 30.5 31.3 33.2 35.4

Surface Area Unwound Core 40% Winding Factor

1,200 mm² 1,900 mm²

AL (nH/ T 2)

Kool Mµ AL vs. DC Bias

0

50

100

150

200

250

300

350

400

450

500

A·T www.mag-inc.com

550

600

650

69

0.900” 0.550”

Core Data

22.9 mm OD Core Dimensions

OD(max) ID(min) HT(max)

Before Finish (nominal)

22.9 mm/0.900 in

14.0 mm/0.550 in

7.62 mm/0.300 in

After Finish (limits)

23.7 mm/0.930 in

13.3 mm/0.525 in

8.39 mm/0.330 in

Permeability (µ)

AL ± 8%

14 26 40 60 75 90 125 147 160 173 200 300 550

9.9 19 29 43 54 65 90 106 115 124 144 216 396

MPP 55313 55312 55059 55310 55309 55308 55304 55307 55305 55306

High Flux 58313 58312 58059 58310 58309 58308 -

139 mm 31.7 mm2 56.7 mm 1,800 mm3 16 g 15 g 12 g 13 g 4,430 mm4

Winding Factor 0% 20% 25% 30% 35% 40% 45% 50% 60% 70%

Wound Coil Dimensions OD HT Max OD Max HT

Completely Full Window

Kool Mµ® 77312 77316 77059 77315 77314 77310 -

XFlux® 78312 78059 -

Winding Turn Length * Reference General Winding Data pages 2

40% Winding Factor

55310A2

Part Number

Physical Characteristics Window Area Cross Section Path Length Volume Weight- MPP Weight- High Flux Weight- Kool Mµ Weight - XFlux Area Product

0.300”

25.7 mm 12.4 mm 32.6 mm 19.8 mm

Length/Turn (mm) 27.0 30.5 31.3 32.0 33.1 33.9 34.9 35.9 38.0 40.4

Surface Area Unwound Core 40% Winding Factor

1,600 mm2 2,400 mm2

Kool Mµ AL vs. DC Bias 90 80

AL (nH/ T 2)

70 60 50 40 30 20 10 0

0

70

100

200

300

400

500

A·T MAGNETICS

600

700

800

900

1000

23.6 mm OD Core Dimensions

OD(max) ID(min) HT(max)

Before Finish (nominal)

23.6 mm/0.928 in

14.4 mm/0.567 in

8.89 mm/0.350 in

After Finish (limits)

24.4 mm/0.958 in

13.7 mm/0.542 in

9.66 mm/0.380 in

Permeability (µ)

AL ± 8%

14 26 40 60 75 90 125 147 160 173 200 300

12 22 34 51 62 76 105 124 135 146 169 253

0.350”

55350A2

Part Number MPP 55353 55352 55351 55350 55349 55348 55344 55347 55345

High Flux 58353 58352 58351 58350 58349 58348 -

Physical Characteristics Window Area Cross Section Path Length Volume Weight- MPP Weight- High Flux Weight- Kool Mµ Weight - XFlux Area Product

Core Data

0.928” 0.567”

Kool Mµ® 77352 77356 77351 77355 77354 77350 -

XFlux® 78352 78351 -

Winding Turn Length * Reference General Winding Data pages 149 mm 38.8 mm2 58.8 mm 2,280 mm3 20 g 19 g 14 g 16 g 5,770 mm4

Winding Factor 0% 20% 25% 30% 35% 40% 45% 50% 60% 70%

2

Wound Coil Dimensions OD HT Max OD Max HT

40% Winding Factor Completely Full Window

26.7 mm 14.2 mm 33.5 mm 21.4 mm

Length/Turn (mm) 29.8 33.4 34.2 35.0 36.1 36.9 38.0 38.9 41.1 43.6

Surface Area Unwound Core 40% Winding Factor

1,800 mm2 2,700 mm2

AL (nH/ T 2)

Kool Mµ AL vs. DC Bias

0

100

200

300

400

500

600

700

800

A·T www.mag-inc.com

900

1000

1100

71

1.060”

Core Data

26.9 mm OD Core Dimensions

0.580”

OD(max) ID(min) HT(max)

Before Finish (nominal)

26.90 mm/1.060 in

14.7 mm/0.580 in

11.2 mm/0.440 in

After Finish (limits)

27.69 mm/1.090 in

14.1 mm/0.555 in

12.0 mm/0.470 in

Permeability (µ)

AL ± 8%

14 26 40 60 75 90 125 147 160 173 200 300 550

18 32 50 75 94 113 157 185 201 217 251 377 740

0.440”

55930A2

Part Number MPP 55933 55932 55894 55930 55929 55928 55924 55927 55925 55926

High Flux 58933 58932 58894 58930 58929 58928 -

Physical Characteristics

Kool Mµ® 77932 77936 77894 77935 77934 77930 -

XFlux® 78932 78894 -

Winding Turn Length * Reference General Winding Data pages

Window Area Cross Section Path Length Volume Weight- MPP Weight- High Flux Weight- Kool Mµ Weight - XFlux Area Product

156 mm2 65.4 mm2 63.5 mm 4,150 mm3 36 g 34 g 26 g 29 g 10,200 mm4

Winding Factor 0% 20% 25% 30% 35% 40% 45% 50% 60% 70%

Wound Coil Dimensions OD HT Max OD Max HT

40% Winding Factor Completely Full Window

30.0 mm 16.5 mm 37.3 mm 24.0 mm

Length/Turn (mm) 37.5 41.1 41.9 42.8 43.8 44.6 45.7 46.6 48.8 51.3

Surface Area Unwound Core 40% Winding Factor

2,400 mm2 3,500 mm2

Kool Mµ AL vs. DC Bias 160 140

AL (nH/ T 2)

120 100 80 60 40 20 0

0

72

100

200

300

400

500

600

A·T MAGNETICS

700

800

900

1000

1100

1200

32.8 mm OD Core Dimensions

OD(max) ID(min) HT(max)

Before Finish (nominal)

32.8 mm/1.291 in

20.1 mm/0.791 in

10.7 mm/0.420 in

After Finish (limits)

33.66 mm/1.325 in

19.4 mm/0.766 in

11.5 mm/0.450 in

Permeability (µ)

AL ± 8%

14 26 40 60 75 90 125 147 160 173 200 300 550

14 28 41 61 76 91 127 150 163 176 203 305 559

MPP 55551 55550 55071 55548 55547 55546 55542 55545 55543 55544

High Flux 58551 58550 58071 58548 58547 58546 -

Winding Factor 0% 20% 25% 30% 35% 40% 45% 50% 60% 70%

Wound Coil Dimensions OD HT Max OD Max HT

Completely Full Window

Kool Mµ® 77550 77555 77071 77553 77552 77548 -

XFlux® 78550 78071 -

Winding Turn Length * Reference General Winding Data pages 297 mm2 65.6 mm2 81.4 mm 5,340 mm3 47 g 44 g 34 g 38 g 19,500 mm4

40% Winding Factor

55548A2

Part Number

Physical Characteristics Window Area Cross Section Path Length Volume Weight- MPP Weight- High Flux Weight- Kool Mµ Weight - XFlux Area Product

0.420”

36.8 mm 17.8 mm 46.7 mm 28.0 mm

Length/Turn (mm) 37.4 42.4 43.5 44.7 46.1 47.2 48.8 50.1 53.2 56.7

Surface Area Unwound Core 40% Winding Factor

3,100 mm2 4,900 mm2

Kool Mµ AL vs. DC Bias 130 120 110

AL (nH/ T 2)

100 90 80 70 60 50 40 30 20 10 0

0

150

300

450

600

750

900

1050

1200

A·T www.mag-inc.com

1350

1500

73

Core Data

1.291” 0.791”

1.350” 0.920”

Core Data

34.3 mm OD Core Dimensions

OD(max) ID(min) HT(max)

Before Finish (nominal)

34.30 mm/1.350 in

23.4 mm/0.920 in

8.89 mm/0.350 in

After Finish (limits)

35.18 mm/1.385 in

22.5 mm/0.888 in

9.78 mm/0.385 in

Permeability (µ)

AL ± 8%

14 26 40 60 75 90 125 147 160 173 200 300 550

9 16 25 38 47 57 79 93 101 109 126 190 348

MPP 55588 55587 55586 55585 55584 55583 55579 55582 55580 55581

High Flux 58588 58587 58586 58585 58584 58583 -

Winding Factor 0% 20% 25% 30% 35% 40% 45% 50% 60% 70%

Wound Coil Dimensions OD HT Max OD Max HT

Completely Full Window

Kool Mµ® 77587 77591 77586 77590 77589 77585 -

XFlux® 78587 78586 -

Winding Turn Length * Reference General Winding Data pages 399 mm2 46.4 mm2 89.5 mm 4,150 mm3 35 g 33 g 25 g 29 g 18,500 mm4

40% Winding Factor

55585A2

Part Number

Physical Characteristics Window Area Cross Section Path Length Volume Weight- MPP Weight- High Flux Weight- Kool Mµ Weight - XFlux Area Product

0.350”

40.5 mm 16.8 mm 50.1 mm 29.0 mm

Length/Turn (mm) 32.2 38.1 39.6 40.6 42.5 44.0 45.6 47.3 50.8 54.9

Surface Area Unwound Core 40% Winding Factor

2,900 mm2 5,500 mm2

Kool Mµ AL vs. DC Bias 80 70

AL (nH/ T 2)

60 50

125 90 75 60 40 26

40 30 20 10 0

0

74

200

400

600

800

1000

A·T MAGNETICS

1200

1400

1600

1800

35.8 mm OD Core Dimensions

OD(max) ID(min) HT(max)

Before Finish (nominal)

35.80 mm/1.410 in

22.4 mm/0.880 in

10.5 mm/0.412 in

After Finish (limits)

36.71 mm/1.445 in

21.5 mm/0.848 in

11.4 mm/0.447 in

Permeability (µ)

AL ± 8%

14 26 40 60 75 90 125 147 160 173 200 300 550

13 24 37 56 70 84 117 138 150 162 187 281 515

MPP 55327 55326 55076 55324 55323 55322 55318 55321 55319 55320

High Flux 58327 58326 58076 58324 58323 58322 -

364 mm 67.8 mm2 89.8 mm 6,090 mm3 52 g 49 g 37 g 43 g 24,700 mm4

Winding Factor 0% 20% 25% 30% 35% 40% 45% 50% 60% 70%

Wound Coil Dimensions OD HT Max OD Max HT

Completely Full Window

Kool Mµ® 77326 77330 77076 77329 77328 77324 -

XFlux® 78326 78076 -

Winding Turn Length * Reference General Winding Data pages 2

40% Winding Factor

55324A2

Part Number

Physical Characteristics Window Area Cross Section Path Length Volume Weight- MPP Weight- High Flux Weight- Kool Mµ Weight - XFlux Area Product

0.412”

40.2 mm 18.4 mm 51.1 mm 29.6 mm

Length/Turn (mm) 37.9 43.5 44.8 46.0 47.6 48.9 50.6 52.0 55.5 59.3

Surface Area Unwound Core 40% Winding Factor

3,400 mm2 5,700 mm2

Kool Mµ AL vs. DC Bias 120 110 100

AL (nH/ T 2)

90 80 70 60 50 40 30 20 10 0

0

200

400

600

800

1000

1200

1400

A·T www.mag-inc.com

1600

1800

75

Core Data

1.410” 0.880”

1.570” 0.950”

Core Data

39.9 mm OD Core Dimensions

OD(max) ID(min) HT(max)

Before Finish (nominal)

39.90 mm/1.570 in

24.1 mm/0.950 in

14.5 mm/0.570 in

After Finish (limits)

40.77 mm/1.605 in

23.3 mm/0.918 in

15.4 mm/0.605 in

Permeability (µ)

AL ± 8%

14 26 40 60 75 90 125 147 160 173 200 300 550

19 35 54 81 101 121 168 198 215 233 269 403 740

MPP 55257 55256 55083 55254 55253 55252 55248 55251 55249 55250

High Flux 58257 58256 58083 58254 58253 58252 -

427 mm 107 mm2 98.4 mm 10,600 mm3 92 g 87 g 65 g 78 g 45,800 mm4

Winding Factor 0% 20% 25% 30% 35% 40% 45% 50% 60% 70%

Wound Coil Dimensions OD HT Max OD Max HT

Completely Full Window

Kool Mµ® 77256 77260 77083 77259 77258 77254 -

XFlux® 78256 78083 -

Winding Turn Length * Reference General Winding Data pages 2

40% Winding Factor

55254A2

Part Number

Physical Characteristics Window Area Cross Section Path Length Volume Weight- MPP Weight- High Flux Weight- Kool Mµ Weight - XFlux Area Product

0.570”

44.3 mm 22.4 mm 56.4 mm 35.2 mm

Length/Turn (mm) 48.2 54.3 55.8 57.0 58.8 60.2 62.1 63.7 67.3 71.5

Surface Area Unwound Core 40% Winding Factor

4,800 mm2 7,300 mm2

Kool Mµ AL vs. DC Bias 180 160

AL (nH/ T 2)

140 120

125 90 75 60 40 26

100 80 60 40 20 0

0

76

200

400

600

800

1000

A·T MAGNETICS

1200

1400

1600

1800

46.7 mm OD Core Dimensions

OD(max) ID(min) HT(max)

Before Finish (nominal)

46.70 mm/1.840 in

28.70 mm/1.130 in

15.2 mm/0.600 in

After Finish (limits)

47.63 mm/1.875 in

27.88 mm/1.098 in

16.2 mm/0.635 in

Permeability (µ)

AL ± 8%

14 26 40 60 75 90 125 147 160 173 200 300

20 37 57 86 107 128 178 210 228 246 285 427

55089A2

Part Number MPP 55092 55091 55090 55089 55088 55087 55082 55086 55084

High Flux 58092 58091 58090 58089 -

Physical Characteristics Window Area Cross Section Path Length Volume Weight- MPP Weight- High Flux Weight- Kool Mµ Weight - XFlux Area Product

0.600”

Kool Mµ® 77091 77095 77090 77094 77093 77089 -

XFlux® 78091 78090 -

Winding Turn Length * Reference General Winding Data pages 610 mm2 134 mm2 116 mm 15,600 mm3 130 g 120 g 96 g 110 g 81,800 mm4

Winding Factor 0% 20% 25% 30% 35% 40% 45% 50% 60% 70%

Wound Coil Dimensions OD HT Max OD Max HT

40% Winding Factor Completely Full Window

52.0 mm 24.9 mm 66.3 mm 39.8 mm

Length/Turn (mm) 52.0 59.1 61.0 62.2 64.5 66.4 68.2 70.4 74.7 79.5

Surface Area Unwound Core 40% Winding Factor

6,100 mm2 9,800 mm2

Kool Mµ AL vs. DC Bias

180 160

AL (nH/ T 2)

140 120 100 80 60 40 20 0

0

200

400

600

800

1000

1200

1400

1600

A·T www.mag-inc.com

1800

2000

2200

77

Core Data

1.840” 1.130”

1.840” 0.950”

Core Data

46.7 mm OD Core Dimensions

OD(max) ID(min) HT(max)

Before Finish (nominal)

46.70 mm/1.840 in

24.1 mm/0.950 in

18.0 mm/0.710 in

After Finish (limits)

47.63 mm/1.875 in

23.3 mm/0.918 in

19.0 mm/0.745 in

Permeability (µ)

AL ± 8%

14 26 40 60 75 90 125 147 160 173 200 300

32 59 90 135 169 202 281 330 360 390 450 674

MPP 55441 55440 55439 55438 55437 55436 55432 55435 55433

High Flux 58441 58440 58439 58438 58437 -

427 mm 199 mm2 107 mm 21,300 mm3 180 g 170 g 130 g 150 g 85,900 mm4

Winding Factor 0% 20% 25% 30% 35% 40% 45% 50% 60% 70%

Wound Coil Dimensions OD HT Max OD Max HT

Completely Full Window

Kool Mµ® 77440 77431 77439 77443 77442 77438 -

XFlux® 78440 78439 -

Winding Turn Length * Reference General Winding Data pages 2

40% Winding Factor

55438A2

Part Number

Physical Characteristics Window Area Cross Section Path Length Volume Weight- MPP Weight- High Flux Weight- Kool Mµ Weight - XFlux Area Product

0.710”

51.2 mm 26.0 mm 63.8 mm 38.7 mm

Length/Turn (mm) 62.1 68.2 69.7 70.9 72.7 74.1 76.0 77.6 81.2 85.4

Surface Area Unwound Core 40% Winding Factor

6,900 mm2 9,600 mm2

Kool Mµ AL vs. DC Bias 300 270 240

AL (nH/ T 2)

210 180 150 120 90 60 30 0

0

78

200

400

600

800

1000

1200

A·T MAGNETICS

1400

1600

1800

2000

2200

50.8 mm OD Core Dimensions

OD(max) ID(min) HT(max)

0.530”

Before Finish (nominal)

50.80 mm/2.000 in

31.80 mm/1.250 in

13.5 mm/0.530 in

After Finish (limits)

51.69 mm/2.035 in

30.93 mm/1.218 in

14.4 mm/0.565 in

Permeability (µ)

AL ± 8%

14 26 40 60 75 90 125 147 160 173 200 300

17 32 49 73 91 109 152 179 195 210 243 365

55715A2

Part Number MPP 55718 55717 55716 55715 55714 55713 55709 55712 55710

High Flux 58718 58717 58716 58715 58714 -

Physical Characteristics

Kool Mµ® 77717 77721 77716 77720 77719 77715 -

XFlux® 78717 78716 -

Winding Turn Length * Reference General Winding Data pages

Window Area Cross Section Path Length Volume Weight- MPP Weight- High Flux Weight- Kool Mµ Weight - XFlux Area Product

751 mm 125 mm2 127 mm 15,900 mm3 140 g 130 g 98 g 110 g 94,000 mm4

Winding Factor 0% 20% 25% 30% 35% 40% 45% 50% 60% 70%

2

Wound Coil Dimensions OD HT Max OD Max HT

40% Winding Factor Completely Full Window

56.6 mm 24.2 mm 72.4 mm 40.6 mm

Length/Turn (mm) 49.5 57.4 59.6 61.0 63.5 65.5 67.7 70.1 74.9 80.3

Surface Area Unwound Core 40% Winding Factor

6,400 mm2 11,000 mm2

AL (nH/ T 2)

Kool Mµ AL vs. DC Bias

0

200

400

600

800

1000

1200

1400

1600

1800

A·T www.mag-inc.com

2000

2200

2400

79

Core Data

2.000” 1.250”

2.250” 1.400”

Core Data

57.2 mm OD Core Dimensions

OD(max) ID(min) HT(max)

Before Finish (nominal)

57.20 mm/2.250 in

35.60 mm/1.400 in

14.0 mm/0.550 in

After Finish (limits)

58.04 mm/2.285 in

34.74 mm/1.368 in

14.9 mm/0.585 in

Permeability (µ)

AL ± 8%

14 26 40 60 75 90 125 147 160 173 200 300

18 33 50 75 94 112 156 185 200 218 250 374

0.550”

55109A2

Part Number MPP 55112 55111 55110 55109 55108 55107 55103 55106 55104

High Flux 58112 58111 58110 58109 -

Physical Characteristics

Kool Mµ® 77111 77212 77110 77214 77213 77109 -

XFlux® 78111 78110 -

Winding Turn Length * Reference General Winding Data pages

Window Area Cross Section Path Length Volume Weight- MPP Weight- High Flux Weight- Kool Mµ Weight - XFlux Area Product

948 mm 144 mm2 143 mm 20,700 mm3 180 g 170 g 130 g 150 g 137,000 mm4

Winding Factor 0% 20% 25% 30% 35% 40% 45% 50% 60% 70%

2

Wound Coil Dimensions OD HT Max OD Max HT

40% Winding Factor Completely Full Window

63.5 mm 25.9 mm 81.3 mm 44.4 mm

Length/Turn (mm) 53.0 61.9 64.3 65.8 68.7 71.0 73.2 76.0 81.3 87.1

Surface Area Unwound Core 40% Winding Factor

7,700 mm2 13,000 mm2

Kool Mµ AL vs. DC Bias 160 140

AL (nH/ T 2)

120 100 80 60 40 20 0

0

80

200

400

600

800

1000

1200

1400

A·T MAGNETICS

1600

1800

2000

2200

2400

2600

2800

57.2 mm OD Core Dimensions

OD(max) ID(min) HT(max)

Before Finish (nominal)

57.20 mm/2.250 in

26.40 mm/1.039 in

15.2 mm/0.600 in

After Finish (limits)

58.04 mm/2.285 in

25.57 mm/1.007 in

16.2 mm/0.635 in

Permeability (µ)

AL ± 8%

14 26 40 60 75 90 125 147 160 173 200

32 60 92 138 172 207 287 306 333 360 417

Core Data

2.250” 1.039”

0.600”

55195A2

Part Number MPP 55190 55191 55192 55195 55196 55197 55198 55199

High Flux 58190 58191 58192 58195 -

Physical Characteristics

Kool Mµ® 77191 77189 77192 77193 77194 77195 -

XFlux® 78191 78192 -

Winding Turn Length * Reference General Winding Data pages

Window Area Cross Section Path Length Volume Weight- MPP Weight- High Flux Weight- Kool Mµ Weight - XFlux Area Product

514 mm 229 mm2 125 mm 28,600 mm3 240 g 230 g 180 g 200 g 118,000 mm4

Winding Factor 0% 20% 25% 30% 35% 40% 45% 50% 60% 70%

2

Length/Turn (mm) 64.6 71.2 72.9 74.1 76.3 77.8 79.8 81.6 85.6 90.1

Wound Coil Dimensions OD HT Max OD Max HT

40% Winding Factor Completely Full Window

62.0 mm 24.0 mm 75.7 mm 34.0 mm

Surface Area Unwound Core 40% Winding Factor

8,500 mm2 12,000 mm2

AL (nH/ T 2)

Kool Mµ AL vs. DC Bias

0

200

400

600

800

1000

1200

1400

1600

1800

A·T www.mag-inc.com

2000

2200

2400

81

2.440” 1.283”

Core Data

62.0 mm OD Core Dimensions

OD(max) ID(min) HT(max)

Before Finish (nominal)

62.00 mm/2.440 in

32.60 mm/1.283 in

25.0 mm/0.984 in

After Finish (limits)

62.91 mm/2.477 in

31.69 mm/1.248 in

25.91 mm/1.020 in

Permeability (µ)

AL ± 8%

14 26 40 60 75 90 125

44 82 126 189 237 284 394

0.984”

55620A2

Part Number MPP 55614 55615 55617 55620

High Flux 58614 58615 58617 58620

Physical Characteristics

Kool Mµ® 77615 77616 77617 77618 77619 77620

XFlux® -

Winding Turn Length * Reference General Winding Data pages

Window Area Cross Section Path Length Volume Weight- MPP Weight- High Flux Weight- Kool Mµ Weight - XFlux Area Product

789 mm 360 mm2 144 mm 51,800 mm3 460 g 440 g 340 g 284,000 mm4

Winding Factor 0% 20% 25% 30% 35% 40% 45% 50% 60% 70%

2

Length/Turn (mm) 83.0 91.3 93.4 94.9 97.5 99.5 102 104 109 115

Wound Coil Dimensions OD HT Max OD Max HT

40% Winding Factor Completely Full Window

75.3 mm 39.7 mm 81.4 mm 47.4 mm

Surface Area Unwound Core 40% Winding Factor

12,000 mm2 21,000 mm2

Kool Mµ AL vs. DC Bias 300

90µ

270 240

75µ

AL (nH/ T 2)

210

60µ

180 150

40µ

120

26µ

90 60 30 0

0

82

250

400

600

800

1000

1200

1400

A·T MAGNETICS

1600

1800

2000

2200

2400

2600

74.1 mm OD Core Dimensions

OD(max) ID(min) HT(max)

Before Finish (nominal)

74.10 mm/2.917 in

45.30 mm/1.783 in

35.00 mm/1.378 in

After Finish (limits)

75.01 mm/2.953 in

44.39 mm/1.748 in

35.92 mm/1.414 in

Permeability (µ)

AL ± 8%

14 26 40 60 75 90 125

48 88 136 204 255 306 425

1.378”

55740A2

Part Number MPP 55734 55735 55737 55740

High Flux 58734 58735 58737 58740

Physical Characteristics

Kool Mµ® 77735 77736 77737 77738 77739 77740

XFlux® -

Winding Turn Length * Reference General Winding Data pages

Window Area Cross Section Path Length Volume Weight- MPP Weight- High Flux Weight- Kool Mµ Weight - XFlux Area Product

1,550 mm 497 mm2 184 mm 91,400 mm3 790 g 750 g 570 g 769,000 mm4

Winding Factor 0% 20% 25% 30% 35% 40% 45% 50% 60% 70%

2

Length/Turn (mm) 102 114 117 119 122 125 129 132 139 147

Wound Coil Dimensions OD HT Max OD Max HT

40% Winding Factor Completely Full Window

91.0 mm 55.2 mm 102 mm 65.7 mm

Surface Area Unwound Core 40% Winding Factor

19,000 mm2 33,000 mm2

Kool Mµ AL vs. DC Bias 330 300

90µ

270

75µ

AL (nH/ T 2)

240

60µ

210 180

40µ

150 120

26µ

90 60 30 0

0

250

500

750

1000

1250

1500

1750

2000

2250

2500

2750

A·T www.mag-inc.com

3000

3250

3500

83

Core Data

2.917” 1.783”

3.063” 1.938”

Core Data

77.8 mm OD Core Dimensions

OD(max) ID(min) HT(max)

Before Finish (nominal)

77.80 mm/3.063 in

49.20 mm/1.938 in

12.7 mm/0.500 in

After Finish (limits)

78.95 mm/3.108 in

48.20 mm/1.898 in

13.9 mm/0.545 in

Permeability (µ)

AL ± 8%

14 26 40 60 125

16 30 45 68 142

0.500”

55866A2

Part Number MPP 55869 55868 55867 55866

High Flux 58869 58868 58867 58866

Physical Characteristics

Kool Mµ® 77868 77872 77867 77866

XFlux® 78867 -

Winding Turn Length * Reference General Winding Data pages

Window Area Cross Section Path Length Volume Weight- MPP Weight- High Flux Weight- Kool Mµ Weight - XFlux Area Product

1,820 mm 176 mm2 196 mm 34,500 mm3 290 g 270 g 210 g 240 g 321,000 mm4

Winding Factor 0% 20% 25% 30% 35% 40% 45% 50% 60% 70%

2

Length/Turn (mm) 58.4 70.9 74.1 76.3 80.4 83.5 86.7 90.4 98.1 107

Wound Coil Dimensions OD HT Max OD Max HT

40% Winding Factor Completely Full Window

86.6 mm 29.1 mm 112 mm 54.3 mm

Surface Area Unwound Core 40% Winding Factor

11,000 mm2 23,000 mm2

Kool Mµ AL vs. DC Bias 70 65

60µ

60 55

AL (nH/ T 2)

50

40µ

45 40 35

26µ

30 25 20 15 10 5 0

0

84

250

500

750

1000

1250

1500

1750

A·T MAGNETICS

2000

2250

2500

2750

3000

3250

3500

77.8 mm OD Core Dimensions

OD(max) ID(min) HT(max)

Before Finish (nominal)

77.80 mm/3.063 in

49.20 mm/1.938 in

15.9 mm/0.625 in

After Finish (limits)

78.95 mm/3.108 in

48.20 mm/1.898 in

17.1 mm/0.670 in

Permeability (µ)

AL ± 8%

14 26 40 60 125

20 37 57 85 177

0.625”

55906A2

Part Number MPP 55909 55908 55907 55906

High Flux 58909 58908 58907 58906

Physical Characteristics Window Area Cross Section Path Length Volume Weight- MPP Weight- High Flux Weight- Kool Mµ Weight - XFlux Area Product

Core Data

3.063” 1.938”

Kool Mµ® 77908 77912 77907 77906

XFlux® 78907 -

Winding Turn Length * Reference General Winding Data pages 1,820 mm 221 mm2 196 mm 43,400 mm3 380 g 360 g 280 g 320 g 403,000 mm4

Winding Factor 0% 20% 25% 30% 35% 40% 45% 50% 60% 70%

2

Length/Turn (mm) 64.7 77.2 80.5 82.7 86.8 89.9 93.1 96.8 104 113

Wound Coil Dimensions OD HT Max OD Max HT

40% Winding Factor Completely Full Window

86.6 mm 32.3 mm 113 mm 57.7 mm

Surface Area Unwound Core 40% Winding Factor

13,000 mm2 24,000 mm2

Kool Mµ AL vs. DC Bias 180 160

AL (nH/ T 2)

140 120 100 80 60 40 20 0

0

250

500

750

1000

1200

1500

1700

2000

2250

2500

2750

3000

A·T www.mag-inc.com

3250

3500

3750

4000

85

4.000” 2.252”

Core Data

101.6 mm OD Core Dimensions

OD(max) ID(min) HT(max)

Before Finish (nominal)

101.6 mm/4.000 in

57.20 mm/2.252 in

16.5 mm/0.650 in

After Finish (limits)

103.0 mm/4.055 in

55.75 mm/2.195 in

17.9 mm/0.705 in

Permeability (µ)

AL ± 8%

14 26 40 60 125

26 48 74 111 232

55102A2

Part Number MPP 55101 55102 55099 55098

High Flux 58101 58102 58099 58098

Physical Characteristics Window Area Cross Section Path Length Volume Weight- MPP* Weight- High Flux* Weight- Kool Mµ* Weight - XFlux Area Product

0.650”

Kool Mµ® 77102 77100 77099 77098

XFlux® -

Winding Turn Length * Reference General Winding Data pages 2,470 mm 358 mm2 243 mm 86,900 mm3 650 g 610 g 470 g 885,000 mm4

Winding Factor 0% 20% 25% 30% 35% 40% 45% 50% 60% 70%

2

*26µ, see page 25

Length/Turn (mm) 82.2 96.8 100 103 108 111 116 120 128 139

Wound Coil Dimensions OD HT Max OD Max HT

40% Winding Factor Completely Full Window

112 mm 34.9 mm 136 mm 55.1 mm

Surface Area Unwound Core 40% Winding Factor

20,000 mm2 36,000 mm2

Kool Mµ AL vs. DC Bias 240 220

125µ

200 180

AL (nH/ T 2)

160 140 120

60µ

100 80

40µ

60

26µ

40 20 0

0

86

500

1000

1500

2000

2500

A·T MAGNETICS

3000

3500

4000

4500

132.6 mm OD Core Dimensions

OD(max) ID(min) HT(max)

Before Finish (nominal)

132.6 mm/5.219 in

78.60 mm/3.094 in

25.4 mm/1.000 in

After Finish (limits)

134.0 mm/5.274 in

77.19 mm/3.039 in

26.8 mm/1.055 in

Permeability (µ)

AL ± 8%

14 26 40 60 125

37 68 105 158 329

1.000”

55337A2

Part Number MPP 55336 55337 55339 55340

High Flux 58336 58337 58339 58340

Physical Characteristics

Kool Mµ® 77337 77338 77339 -

XFlux® -

Winding Turn Length * Reference General Winding Data pages

Window Area Cross Section Path Length Volume Weight- MPP* Weight- High Flux* Weight- Kool Mµ* Weight - XFlux Area Product

4,710 mm 678 mm2 324 mm 220,000 mm3 1,700 g 1,500 g 1,200 g 3,190,000 mm4

Winding Factor 0% 20% 25% 30% 35% 40% 45% 50% 60% 70%

2

*26µ, see page 25

Length/Turn (mm) 110 130 135 139 145 150 156 162 173 187

Wound Coil Dimensions OD HT Max OD Max HT

40% Winding Factor Completely Full Window

146 mm 50.7 mm 179 mm 78.8 mm

Surface Area Unwound Core 40% Winding Factor

36,000 mm2 65,000 mm2

Kool Mµ AL vs. DC Bias 160

60µ

140

AL (nH/ T 2)

120

40µ

100 80

26µ

60 40 20

0

500

1000

1500

2000

2500

3000

3500

4000

4500

A·T www.mag-inc.com

5000

5500

6000

87

Core Data

5.219” 3.094”

6.500” 4.032”

Core Data

165.1 mm OD Core Dimensions

OD(max) ID(min) HT(max)

Before Finish (nominal)

165.1 mm/6.500 in

102.4 mm/4.032 in

31.75 mm/1.250 in

After Finish (limits)

166.5 mm/6.555 in

101.0 mm/3.977 in

33.15 mm/1.305 in

Permeability (µ)

AL ± 8%

14 26 40 60

42 78 120 180

55165A2

Part Number MPP 55164 55165 55167

High Flux 58164 58165 58167

Physical Characteristics Window Area Cross Section Path Length Volume Weight- MPP* Weight- High Flux* Weight- Kool Mµ* Weight - XFlux Area Product

1.250”

Kool Mµ® 77165 -

XFlux® -

Winding Turn Length * Reference General Winding Data pages 8,030 mm2 987 mm2 412 mm 407,000 mm3 3,000 g 2,800 g 2,200 g 7,920,000 mm4

Winding Factor 0% 20% 25% 30% 35% 40% 45% 50% 60% 70%

*26µ, see page 25

Length/Turn (mm) 132 158 164 170 178 184 192 199 215 233

Wound Coil Dimensions OD HT Max OD Max HT

40% Winding Factor Completely Full Window

182 mm 63.2 mm 228 mm 103 mm

Surface Area Unwound Core 40% Winding Factor

55,000 mm2 102,000 mm2

Kool Mµ AL vs. DC Bias 130

40µ

120 110 100

AL (nH/ T 2)

90

26µ

80 70 60 50 40 30 20 10 0

0

88

1000

2000

3000

4000

5000

A·T MAGNETICS

6000

7000

8000

9000

10000

Core E Core Loss DataDensity Curves

A

C

L

Material Core Data Data

B

E

F M D

PART NO

A

B

C

D(min)

E(min)

F

L(nom)

M(min)

00K1808E*** (EI-187)

mm in

19.3±0.305 0.760±0.012

8.10±0.178 0.319±0.007

4.78±0.152 0.188±0.006

5.53 0.218

13.9 0.548

4.78±0.127 0.188±0.005

2.39 0.094

4.64 0.183

00K2510E*** (E-2425)

mm in

25.4±0.381 1.000±0.015

9.53±0.178 0.375±0.007

6.35±0.102 0.250±0.004

6.22 0.245

18.7 0.740

6.35±0.127 0.250±0.005

3.18 0.125

6.24 0.246

00K3007E*** (DIN 30/7)

mm in

30.10±0.457 1.185±0.018

15.0±0.229 0.591±0.009

7.06±0.152 0.278±0.006

9.55 0.376

19.8 0.782

6.96±0.203 0.274±0.008

5.11 0.201

6.32 0.249

00K3515E*** (EI-375)

mm in

34.54±0.508 1.360±0.020

14.2±0.229 0.557±0.009

9.35±0.178 0.368±0.007

9.60 0.378

25.2 0.995

9.32±0.203 0.367±0.008

4.45 0.175

7.87 0.310

00K4017E*** (EE 42/11)

mm in

42.85±0.635 1.687±0.025

21.1±0.305 0.830±0.012

10.8±0.254 0.424±0.010

14.9 0.587

30.30 1.195

11.9±0.254 0.468±0.010

5.94 0.234

9.27 0.365

00K4020E*** (DIN 42/15)

mm in

42.85±0.635 1.687±0.025

21.1±0.330 0.830±0.013

15.4±0.254 0.608±0.010

14.9 0.587

30.35 1.195

11.9±0.254 0.468±0.010

5.94 0.234

9.27 0.365

00K4022E*** (DIN 42/20)

mm in

42.85±0.635 1.687±0.025

21.1±0.330 0.830±0.013

20.0±0.254 0.788±0.010

14.9 0.587

30.35 1.195

11.9±0.254 0.468±0.010

5.94 0.234

9.27 0.365

00K4317E*** (EI-21)

mm in

40.87±0.610 1.609±0.024

16.5±0.279 0.650±0.011

12.5±0.178 0.493±0.007

10.3 0.409

28.32 1.115

12.5±0.203 0.493±0.008

6.05 0.238

7.87 0.310

00K5528E*** (DIN 55/21)

mm in

54.86±0.813 2.160±0.032

27.56±0.406 1.085±0.016

20.6±0.381 0.812±0.015

18.5 0.729

37.49 1.476

16.8±0.381 0.660±0.015

8.38 0.330

10.2 0.405

00K5530E*** (DIN 55/25)

mm in

54.86±0.813 2.160±0.032

27.56±0.406 1.085±0.016

24.6±0.381 0.969±0.015

18.5 0.729

37.49 1.476

16.8±0.381 0.660±0.015

8.38 0.330

10.2 0.405

00K6527E*** (Metric E65)

mm in

65.15±1.27 2.565±0.050

32.51±0.381 1.280±0.015

27.00±0.406 1.063±0.016

22.1 0.874

44.19 1.740

19.7±0.356 0.774±0.014

10.0 0.394

12.0 0.476

00K7228E*** (F11)

mm in

72.39±1.09 2.85±0.043

27.94±0.508 1.100±0.020

19.1±0.381 0.750±0.015

17.7 0.699

52.62 2.072

19.1±0.381 0.750±0.015

9.53 0.375

16.8 0.665

00K8020E*** (Metric E80)

mm in

80.01±1.19 3.150±0.047

38.10±0.635 1.500±0.025

19.8±0.381 0.780±0.015

28.01 1.103

59.28 2.334

19.8±0.381 0.780±0.015

9.91 0.390

19.8 0.780

00K8024E***

mm in

80.01±1.19 3.150±0.047

24.05±0.635 0.950±0.025

29.72±0.381 1.170±0.015

14.02 0.552

59.28 2.334

19.8±0.381 0.780±0.015

9.91 0.390

19.8 0.780

00K8044E***

mm in

80.01±1.19 3.150±0.047

44.58±0.635 1.755±0.025

19.8±0.381 0.780±0.015

34.36 1.353

59.28 2.334

19.8±0.381 0.780±0.015

9.91 0.390

19.8 0.780

00K114LE***

mm in

114.3±0.762 4.500±0.030

46.18±0.381 1.818±0.015

34.93±0.381 1.375±0.015

28.60 1.126

79.50 3.13

35.10±0.381 1.382±0.015

17.2 0.676

22.1 0.874

00K130LE***

mm in

130.3±3.81 5.130±0.150

32.51±0.305 1.280±0.012

53.85±1.27 2.120±0.050

22.1 0.874

108.4 4.270

20.0±0.762 0.788±0.030

10.0 0.394

44.22 1.741

00K160LE***

mm in

160.0±2.54 6.300±0.100

38.10±0.635 1.500±0.025

39.62±1.27 1.560±0.050

28.14 1.108

138.2 5.440

19.8±0.762 0.780±0.030

9.91 0.390

59.28 2.334

Add permeability code*** to part number, e.g. for 26µ Kool Mµ the complete part number is 00K4022E026.

www.mag-inc.com

89

Core Data

B

E Core Data

C

L

A

E

F M D

AL nH/TURNS²± 8%

PART NO

26µ 40µ 60µ 90µ

Path Length Ie (mm)

Cross Section Ae (mm2)

Volume Ve (mm³)

00K1808E***

26

35

48

69

40.1

22.8

914

00K2510E***

39

52

70

100

48.5

38.5

1,870

00K3007E***

33

46

71

92

65.6

60.1

3,940

00K3515E***

56

75

102

146

69.4

84.0

5,830

00K4017E***

56

76

105

151

98.4

128

12,600

00K4020E***

80

108

150

217

98.4

183

18,000

00K4022E***

104

140

194

281

98.4

237

23,300

00K4317E***

88

119

163

234

77.5

152

11,800

00K5528E***

116

157

219

-

123

350

43,100

00K5530E***

138

187

261

-

123

417

51,300

00K6527E***

162

230

300

-

147

540

79,400

00K7228E***

130

173

235

-

137

368

50,400

00K8020E***

103

145

190

-

185

389

72,000

00K8024E***

-

-

370

-

131.4

600

78,840

00K8044E***

91

-

-

-

208

389

80,900

00K114LE***

235

-

445

-

215

1,220

262,000

00K130LE***

254

-

-

-

219

1,080

237,000

00K160LE***

180

-

-

-

273

778

212,000

Add permeability code*** to part number, e.g. for 26µ Kool Mµ the complete part number is 00K4022E026.

Blocks PART NO

A

B

C

Volume Ve(mm3)

00K4741B***

mm in

47.50±0.61 1.870±0.024

41.00±0.51 1.614±0.020

27.51±0.41 1.083±0.016

53,600

00K5528B***

mm in

54.86±0.64 2.160±0.025

27.56±0.41 1.085±0.016

20.6±0.39 0.812±0.015

31,200

00K5030B***

mm in

50.50±0.051 1.988±0.02

30.30±0.30 1.193±0.12

15.0±0.26 0.591±0.01

23,000

00K6030B***

mm in

60.00±0.25 2.362±0.01

30.00±0.25 1.181±0.01

15.0±0.25 0.591±0.01

27,000

00K7030B***

mm in

70.5±0.5 3.169±0.02

30.3±0.25 1.193±0.02

20.0±0.2 0.787±0.008

42,800

00K8030B***

mm in

80.49±0.51 3.169±0.020

30.30±0.51 1.193±0.020

20.00±0.21 0.787±0.008

48,800

Add permeability code*** to part number, e.g. for 26µ Kool Mµ the complete part number is 00K6030B026.

Standard blocks are available in 26µ. For other permeabilities, contact Magnetics.

Note: Inductance is tested in standard picture frame arrangements.

90

MAGNETICS

C

B

U Core Data

Core Data

L E

A D

PART NO

A

B

C

D(min)

E(min)

L(nom)

00K3112U***

mm in

31.24±0.51 1.230±0.020

11.2±0.26 0.440±0.010

12.1±0.39 0.475±0.015

2.54 0.100

14.2 0.560

8.26 0.325

00K4110U***

mm in

40.64±0.51 1.600±0.020

11.2±0.51 0.440±0.020

9.53±0.39 0.375±0.015

2.54 0.100

23.6 0.930

8.38 0.330

00K4111U***

mm in

40.64±0.51 1.600±0.020

11.2±0.26 0.440±0.010

12.1±0.39 0.475±0.015

2.54 0.100

23.6 0.930

8.38 0.330

00K4119U***

mm in

40.64±0.51 1.600±0.020

11.2±0.26 0.440±0.010

19.1±0.39 0.750±0.015

2.54 0.100

23.6 0.930

8.38 0.330

00K5527U***

mm in

54.86±0.64 2.160±0.025

27.56±0.51 1.085±0.020

16.3±0.39 0.643±0.015

16.7 0.660

33.78 1.330

10.5 0.415

00K5529U***

mm in

54.86±0.64 2.160±0.025

27.56±0.51 1.085±0.020

23.2±0.39 0.912±0.015

16.5 0.650

33.02 1.300

10.5 0.415

00K6527U***

mm in

65.15±1.4 2.565±0.053

32.51±0.31 1.280±0.012

27.00±0.41 1.063±0.016

22.1 0.874

44.22 1.741

10.0 0.394

00K6533U***

mm in

65.15±1.4 2.565±0.053

32.51±0.31 1.280±0.012

20.0±0.41 0.788±0.016

19.6 0.772

39.24 1.545

12.5 0.493

00K7236U***

mm in

72.39±0.89 2.850±0.035

35.56±0.64 1.400±0.025

20.9±0.39 0.821±0.015

21.3 0.841

43.68 1.720

13.9 0.547

00K8020U***

mm in

80.01±0.89 3.150±0.035

38.10±0.64 1.500±0.025

19.8±0.39 0.780±0.015

28.14 1.108

59.28 2.334

9.91 0.390

00K8038U***

mm in

80.01±0.89 3.150±0.035

38.10±0.64 1.500±0.025

23.0±0.39 0.907±0.015

22.4 0.883

49.27 1.940

15.4 0.605

AL nH/TURN2± 8% 26µ

40µ

60µ

90µ

Path Length Ie (mm)

Cross Section Ae (mm2)

Volume Ve (mm3)

00K3112U***

-

92

111

179

65.6

101

6,630

00K4110U***

-

56

78

109

85.2

80

6,820

00K4111U***

-

72

95

138

85.2

101

8,600

00K4119U***

-

110

151

218

85.2

159

13,600

00K5527U***

67

-

-

-

168

172

28,900

00K5529U***

85

-

-

-

168

244

41,000

00K6527U***

89

-

-

-

219

270

59,100

00K6533U***

82

-

-

-

199

250

49,800

00K7236U***

87

-

-

-

219

290

63,500

00K8020U***

64

-

-

-

273

195

53,200

00K8038U***

97

-

-

-

237

354

83,900

PART NO

Add permeability code*** to part number, e.g., for 26µ Kool Mµ, the complete part number is 00K6527U026.

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91

Core Data

MPP THINZ® Core Data

BA C

THINZ are available in four permeabilities, 125µ, 160µ, 200µ, and 250µ, but the product is designed to be easily customized to any permeability up to 250. The most critical parameter of a power inductor material is its ability to provide inductance, or permeability, under DC bias. The distributed air gap of MPP results in a soft inductance versus DC bias curve.

This swinging inductance is often desirable since it maximizes power handling for a given package size; improves efficiency; accommodates a wide operating range; and provides automatic fault or overload protection.

MPP THINZ DC Bias

Special core heights are available, consult Magnetics.

PART NO

A nom

B nom

C nom

A max

B min

C max

00M0301T***

mm in

3.05 0.120

1.78 0.070

0.81 0.032

3.18 0.125

1.70 0.067

0.89 0.035

00M0302T***

mm in

3.55 0.140

1.78 0.070

0.81 0.032

3.69 0.145

1.70 0.067

0.89 0.035

00M0402T***

mm in

3.94 0.155

2.23 0.088

0.81 0.032

4.07 0.160

2.13 0.084

0.89 0.035

00M0502T***

mm in

4.60 0.181

2.36 0.093

0.81 0.032

4.73 0.186

2.26 0.089

0.89 0.035

00M0603T***

mm in

6.35 0.250

2.79 0.110

0.81 0.032

6.48 0.255

2.67 0.105

0.89 0.035

00M0804T***

mm in

7.87 0.310

3.96 0.156

0.81 0.032

8.03 0.316

3.83 0.151

0.89 0.035

AL nH/TURN2± 15% 125µ

160µ

200µ

250µ

Path Length Ie (mm)

Cross Section Ae (mm²)

Volume Ve (mm³)

00M0301T***

8.4

10.8

13.5

16.9

7.04

0.40

2.8

00M0302T***

11.6

14.8

18.7

23.4

8.06

0.60

4.8

00M0402T***

9.6

12.3

15.4

19.3

9.44

0.58

5.5

00M0502T***

11.7

15.0

18.7

23.4

10.6

0.79

8.3

00M0603T***

14.9

19.1

24.0

30.0

13.6

1.30

17.7

00M0804T***

12.6

16.2

20.2

25.3

17.9

1.45

25.9

PART NO

Add permeability code*** to part number, e.g., for 125µ the complete part number is 00M0502T125

92

MAGNETICS

Hardware

E Core Hardware Magnetics has bobbins available for use with Kool MÂľ cores. Refer to Magnetics Ferrite Cores catalog for a complete listing of available bobbins. The cores are standard industry sizes that will fit standard bobbins available from many sources. Core pieces can be

Core Number

Bobbin Number

assembled by bonding the mating surfaces or taping around the perimeter of the core set. Caution is advised if metal clamps are considered, since eddy current heating can occur in conductive material that is very close to the surface of low permeability powder core material.

Number of Pins

Winding Area

Length Per Turn

2

(mm )

(mm)

1808E

PCB1808B1

8

31.6

40.5

(EI-187)

00B180801

-

34.2

39.4

PCB2510V1

10

40.6

54.2

2510E

PCB2510V2

10

20.3

54.2

OOB251001

-

51

45.4

PCB3007T1

10

83.3

55

PCB3515M1

12

94.8

73.4

PCB3515M2

12

47.4

73.4

00B351501

-

113

72

4020E

PCB4020N1

12

194

91.4

(DIN 42/15)

00B402021

-

207

97.5

PCB4022N1

12

194

102.1

(E-2425) 3007E (DIN 30/7) 3515E (EI-375)

4022E (DINâ&#x20AC;&#x2C6;42/20) 4317E

PCB4317M1

12

101

85.6

(EI-21)

OOB4317B1

-

122

86

5528E

PCB5528WC

14

302

107.3

(DIN55/25)

OOB5528B1

-

302

107.3

5530E

PCB5530FA

14

289

133.8

OOB6527B1

-

490

166

OOB722801

-

408

149

OOB802001

-

806

165

OOB114LB1

-

945

230

6527E (Metric E65) 7228E (F11) 8020E (Metric E80) 114LE

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93

Hardware

Toroid Hardware TVB22066A For use with toroids from 12.7 mm through 22.2 mm

Material

6 Pins

A Nom.

B Nom.

C Nom.

D Nom.

E Ref.

F Typ.

G Typ.

H Ref.

J Ref.

Phenolic rated UL94V0

CP wire 0.99 mm

19.0 mm

5.44 mm

10.8 mm

3.51 mm

4.80 mm

6.00 mm

7.49 mm

2.01 mm

5.49 mm

TVB2908TA For use with toroids from 20.5 mm through 31.8 mm

Material

10 Pins

A Nom.

B Nom.

C Nom.

D Nom.

E Ref.

F Typ.

G Typ.

H Ref.

J Ref.

Phenolic rated UL94V0

CP wire 0.99 mm

27.0 mm

7.49 mm

19.0 mm

5.00 mm

11.0 mm

15.0 mm

5.00 mm

3.51 mm

8.13 mm

TVB3610FA For use with toroids from 28.6 mm through 38.1 mm

Material 14 Pins Phenolic rated UL94V0

CP wire 0.99 mm

A Nom.

B Nom.

C Nom.

D Nom.

E Ref.

F Typ.

G1 Typ.

G2 Typ.

H Ref.

J Ref.

35.8 mm

7.59 mm

20.8 mm

5.00 mm

12.3 mm

16.0 mm

5.00 mm

6.30 mm

4.5 mm

9.75 mm

TVH22064A For use with toroids from 12.7 mm through 25.4 mm

Material

4 Pins

A Nom.

B Nom.

C Nom.

E Ref.

F Typ.

G Typ.

H Ref.

J Ref.

Nylon 6/6 rated UL94V0

CP wire 1.02 mm

19.1 mm

3.94 mm

10.8 mm

9.78 mm

6.35 mm

15.2 mm

3.30 mm

3.81 mm

94

MAGNETICS

Hardware

Toroid Hardware TV-H4916-4A

TVH25074A

Usable with toroids from1.500" (38.1m m) through 2.500" (63.5mm).

C E

A

B J F

G

Material

4 Pins

Nylon 6/6 rated UL94V0

CP wire 1.21 mm

A Nom.

Material

4 Pins

Nylon, rated UL94V0

0.050" CP wire

25.4 mm

B B Nom. Nom. A

Nom.

1.400" 35.6mm

0.200" 5.1mm

5.08 mm

TV-H4916-4A

TVH38134A

C

E C Ref. Nom.

Nom.

0.900" 22.9mm

15.2 mm

CP wire 1.27 mm

A Nom.

Material

4 Pins

Nylon, rated UL94V0

0.050" CP wire

27.9 mm

TV-H4916-4A

B B Nom. Nom. A

Nom.

1.400" 35.6mm

0.200" 5.1mm

5.08 mm

C

C E Ref. Nom.

Nom.

0.900" 22.9mm

20.3 mm

2.29 mm

5.08 mm

F

Typ. 0.700" 17.8mm

EG Typ. Ref.

F Typ.

G Typ.

H Ref.

J Ref.

15.2 mm

22.9 mm

2.29 mm

5.08 mm

0.200" 5.1mm

F Typ.

G Typ.

H Ref.

J Ref.

17.8 mm

30.5 mm

2.29 mm

5.08 mm

F Typ.

G Typ.

H Ref.

J Ref.

22.9 mm

38.1 mm

2.29 mm

5.08 mm

H

J

Typ.

1.200" 30.5mm

Typ.

0.090" 2.3mm

18.0 mm

0.200" 5.1mm

Top View

B J F

A Nom.

Material

4 Pins

Nylon, rated UL94V0

0.050" CP wire

35.6 mm

TV-H4916-4A

B Nom. B Nom. A

Nom.

1.400" 35.6mm

0.200" 5.1mm

5.08 mm

C Ref. E Nom.

C

Nom.

0.900" 22.9mm

0.810" 20.6mm

F

Typ. 0.700" 17.8mm

22.9 mm

ETyp. G Ref.

1.200" 30.5mm

H

J

Typ.

Typ.

0.090" 2.3mm

20.6 mm

Usable with toroids from1.500" (38.1m m) through 2.500" (63.5mm).

C E

Top View

H B J F

G

CP wire 1.27 mm

0.810" 20.6mm

C E

For use with toroids from 44.4 mm through 71.1 mm

Nylon 6/6 rated UL94V0

10.2 mm

Top View

20.3 mm

A

4 Pins

13.0 mm

H

TVH61134A

Material

J Ref.

Usable with toroids from1.500" (38.1m m) through 2.500" (63.5mm).

G

CP wire 1.27 mm

H Ref.

0.200" 5.1mm

F

For use with toroids from 38.1 mm through 63.5 mm

Nylon 6/6 rated UL94V0

G Typ.

J

Typ.

0.090" 2.3mm

J

A

4 Pins

F Typ.

H

Typ.

1.200" 30.5mm

B

TVH49164A

Material

G ETyp. Ref.

H

G

Nylon 6/6 rated UL94V0

F

Typ. 0.700" 17.8mm

C E

For use with toroids from 25.4 mm (1.000”) through 40.6 mm

4 Pins

0.810" 20.6mm

Usable with toroids from1.500" (38.1m m) through 2.500" (63.5mm).

A

Material

Top View

H

For use with toroids from 20.5 mm (0.810”) through 30.5 mm

A Nom.

Material

4 Pins

Nylon, rated UL94V0

0.050" CP wire

43.2 mm

B B Nom. Nom. A

Nom.

1.400" 35.6mm

0.200" 5.1mm

5.08 mm

C

C E Ref. Nom.

Nom.

0.900" 22.9mm

0.810" 20.6mm

27.9 mm

F

Typ. 0.700" 17.8mm

EG Typ. Ref.

1.200" 30.5mm

25.7 mm

H

Typ. 0.090" 2.3mm

J

Typ.

0.200" 5.1mm

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95

Winding Tables

Winding Tables 3.56 mm OD (140 size)

6.35 mm OD (020 size)

Single Layer Turns

Single Layer RDC (Ohms, Ω)

AWG Wire Size

Single Layer Turns

Single Layer RDC (Ohms, Ω)

AWG Wire Size

Single Layer Turns

Single Layer RDC (Ohms, Ω)

30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49

10 11 13 15 17 20 23 25 28 33 38 43 49 55 59 69 76 85 98 109

0.0286 0.0392 0.0567 0.0821 0.119 0.172 0.246 0.328 0.461 0.704 1.03 1.42 2.01 2.91 3.76 5.65 7.80 11.0 16.0 22.2

26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45

12 14 16 18 21 23 26 30 34 39 44 48 54 62 71 80 91 101 110 128

0.0216 0.0312 0.0446 0.0617 0.0910 0.125 0.173 0.252 0.367 0.518 0.729 0.977 1.39 2.07 3.00 4.13 5.87 8.40 11.1 16.6

22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41

12 14 16 18 20 23 26 29 33 37 41 47 53 60 67 74 83 96 109 122

0.0116 0.0168 0.0239 0.0334 0.0465 0.0663 0.0942 0.129 0.187 0.262 0.358 0.518 0.752 1.05 1.47 1.99 2.82 4.24 6.11 8.37

3.94 mm OD (150 size) AWG Wire Size

28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47

6.60 mm OD (240 size)

AWG Wire Size

27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46

7.87 mm OD (030 size)

Single Layer Turns

Single Layer RDC (Ohms, Ω)

AWG Wire Size

Single Layer Turns

Single Layer RDC (Ohms, Ω)

AWG Wire Size

Single Layer Turns

Single Layer RDC (Ohms, Ω)

11 13 15 17 19 22 25 28 32 35 40 46 53 59 68 76 82 96 105 117

0.0251 0.0364 0.0529 0.0749 0.103 0.149 0.218 0.300 0.427 0.574 0.826 1.23 1.80 2.44 3.52 5.06 6.60 9.93 13.6 19.1

26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45

11 13 15 17 19 22 25 28 32 36 41 45 51 58 67 75 85 95 103 121

0.0196 0.0287 0.0414 0.0577 0.0815 0.118 0.165 0.233 0.342 0.473 0.672 0.907 1.30 1.92 2.80 3.84 5.43 7.82 10.3 15.5

22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41

12 14 16 18 20 23 26 29 33 37 41 47 53 60 67 74 83 96 109 122

0.00988 0.0142 0.0201 0.0281 0.0390 0.0556 0.0787 0.108 0.156 0.218 0.298 0.430 0.623 0.870 1.21 1.65 2.33 3.50 5.04 6.90

4.65 mm OD (180 size)

96

6.86 mm OD (410 size)

AWG Wire Size

6.60 mm OD (270 size)

Single Layer Turns

Single Layer RDC (Ohms, Ω)

AWG Wire Size

11 12 14 16 18 20 23 27 31 34 38 43 50 57 64 73 81 88 103 113

0.0212 0.0289 0.0414 0.0597 0.0838 0.114 0.165 0.249 0.352 0.481 0.661 0.942 1.42 2.05 2.82 4.01 5.73 7.52 11.3 15.6

26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45

MAGNETICS

9.65 mm OD (280 size)

Single Layer Turns

Single Layer RDC (Ohms, Ω)

AWG Wire Size

Single Layer Turns

Single Layer RDC (Ohms, Ω)

11 13 15 17 19 22 25 28 32 36 41 45 51 58 67 75 85 95 103 121

0.0266 0.0390 0.0566 0.0790 0.112 0.163 0.228 0.322 0.474 0.658 0.936 1.26 1.81 2.68 3.92 5.37 7.61 11.0 14.4 21.8

20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39

12 13 15 18 20 23 26 29 33 37 42 47 52 58 67 75 84 92 104 119

0.00684 0.00914 0.0131 0.0194 0.0268 0.0383 0.0541 0.0747 0.107 0.147 0.212 0.297 0.404 0.568 0.844 1.17 1.63 2.19 3.13 4.66

Winding Tables

Winding Tables 12.7 mm OD (050 size)

9.65 mm OD (290 size) AWG Wire Size

20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39

Single Layer Turns

Single Layer RDC (Ohms, Ω)

AWG Wire Size

12 13 15 18 20 23 26 29 33 37 42 47 52 58 67 75 84 92 104 119

0.00747 0.0100 0.0144 0.0213 0.0295 0.0421 0.0596 0.0825 0.118 0.163 0.234 0.328 0.448 0.630 0.937 1.29 1.81 2.44 3.48 5.18

16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35

20.3 mm OD (206 size)

Single Layer Turns

Single Layer RDC (Ohms, Ω)

AWG Wire Size

Single Layer Turns

Single Layer RDC (Ohms, Ω)

12 14 16 19 21 24 28 31 35 40 45 50 56 63 71 79 87 98 112 125

0.00364 0.00520 0.00733 0.0107 0.0147 0.0207 0.0302 0.0413 0.0582 0.0829 0.117 0.161 0.227 0.315 0.451 0.629 0.854 1.21 1.79 2.46

11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30

12 14 16 18 21 24 27 31 35 39 45 50 56 63 71 80 89 100 111 125

0.00163 0.00232 0.00324 0.00449 0.00644 0.00909 0.0126 0.0179 0.0251 0.0347 0.0498 0.0692 0.0962 0.135 0.191 0.270 0.374 0.529 0.725 1.04

16.5 mm OD (120 size)

10.2 mm OD (040 size)

22.9 mm OD (310 size)

AWG Wire Size

Single Layer Turns

Single Layer RDC (Ohms, Ω)

AWG Wire Size

Single Layer Turns

Single Layer RDC (Ohms, Ω)

AWG Wire Size

Single Layer Turns

Single Layer RDC (Ohms, Ω)

20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39

13 15 17 19 22 25 28 31 36 40 45 50 56 63 72 81 91 99 112 128

0.00818 0.0117 0.0165 0.0227 0.0328 0.0463 0.0650 0.0893 0.130 0.178 0.254 0.354 0.488 0.693 1.02 1.42 1.99 2.66 3.80 5.65

13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32

12 14 16 18 21 24 27 30 34 39 44 49 56 63 70 78 87 98 108 121

0.00234 0.00336 0.00471 0.00654 0.00940 0.0133 0.0185 0.0255 0.0359 0.0516 0.0722 0.101 0.143 0.203 0.280 0.393 0.542 0.775 1.07 1.48

10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29

12 14 16 18 21 24 27 31 35 39 44 50 56 63 70 79 89 99 111 123

0.00148 0.00212 0.00296 0.00409 0.00589 0.00830 0.0116 0.0164 0.0230 0.0319 0.0446 0.0632 0.0888 0.124 0.173 0.244 0.345 0.479 0.677 0.927

17.3 mm OD (380 size)

11.2 mm OD (130 size)

23.6 mm OD (350 size)

AWG Wire Size

Single Layer Turns

Single Layer RDC (Ohms, Ω)

AWG Wire Size

Single Layer Turns

Single Layer RDC (Ohms, Ω)

AWG Wire Size

Single Layer Turns

Single Layer RDC (Ohms, Ω)

16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35

10 11 13 15 17 20 23 25 29 33 37 41 46 52 59 65 72 81 93 104

0.00272 0.00366 0.00532 0.00756 0.0106 0.0153 0.0220 0.0295 0.0426 0.0602 0.0845 0.116 0.164 0.228 0.328 0.453 0.618 0.877 1.30 1.79

13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32

11 13 15 17 20 22 25 29 32 37 41 46 52 59 66 74 82 92 102 114

0.00223 0.00324 0.00460 0.00644 0.00933 0.0127 0.0179 0.0258 0.0354 0.0512 0.0704 0.099 0.139 0.199 0.277 0.391 0.535 0.764 1.06 1.47

9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28

11 13 15 17 19 22 25 28 32 36 41 46 51 58 65 73 82 92 102 115

0.00120 0.00173 0.00244 0.00340 0.00467 0.00668 0.00938 0.0130 0.0184 0.0258 0.0365 0.0510 0.0705 0.101 0.140 0.197 0.277 0.392 0.542 0.770

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Winding Tables

Winding Tables 26.9 mm OD (930 size) AWG Wire Size

9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28

35.8 mm OD (324 size)

Single Layer Turns

Single Layer RDC (Ohms, Ω)

AWG Wire Size

11 13 15 17 20 22 25 29 33 37 42 47 53 60 66 75 84 94 105 117

0.00141 0.00205 0.00292 0.00407 0.00592 0.00808 0.0114 0.0164 0.0232 0.0324 0.0459 0.0640 0.0902 0.128 0.176 0.251 0.352 0.497 0.693 0.975

8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27

33.0 mm OD (548 size)

Single Layer Turns

AWG Wire Size

Single Layer Turns

Single Layer RDC (Ohms, Ω)

16 19 22 25 28 32 36 41 46 52 58 65 73 82 93 103 116 130 146 162

0.00169 0.00246 0.00351 0.00491 0.00677 0.00955 0.0133 0.0188 0.0263 0.0369 0.0514 0.0718 0.1 0.141 0.201 0.277 0.392 0.551 0.78 1.08

8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27

22 26 29 33 38 42 47 54 60 68 76 86 96 108 121 135 151 170 190 211

0.00296 0.00432 0.00596 0.00840 0.0120 0.0164 0.0229 0.0327 0.0455 0.0641 0.0897 0.127 0.177 0.249 0.352 0.490 0.690 0.975 1.37 1.91

50.8 mm OD (715 size)

39.9 mm OD (254 size)

AWG Wire Size

Single Layer Turns

Single Layer RDC (Ohms, Ω)

AWG Wire Size

Single Layer Turns

Single Layer RDC (Ohms, Ω)

AWG Wire Size

Single Layer Turns

Single Layer RDC (Ohms, Ω)

8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27

14 17 19 22 25 28 32 36 41 46 52 58 65 74 83 92 103 116 131 145

0.00147 0.00218 0.00299 0.00427 0.00598 0.00826 0.0117 0.0163 0.0232 0.0322 0.0455 0.0632 0.0883 0.126 0.177 0.245 0.344 0.485 0.691 0.954

8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27

18 21 24 27 31 35 39 44 50 56 63 71 80 90 101 112 126 141 158 175

0.00229 0.00329 0.00464 0.00646 0.00917 0.0128 0.0178 0.0250 0.0354 0.0493 0.0695 0.0978 0.138 0.194 0.274 0.379 0.536 0.753 1.06 1.47

8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27

25 29 33 37 42 47 53 60 67 76 85 95 107 120 135 150 168 189 211 234

0.00324 0.00463 0.00651 0.00904 0.0127 0.0176 0.0247 0.0348 0.0486 0.0685 0.0959 0.134 0.189 0.265 0.375 0.520 0.732 1.03 1.46 2.02

34.3 mm OD (585 size)

98

46.7 mm OD (089 size) Single Layer RDC (Ohms, Ω)

AWG Wire Size

8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27

46.7 mm OD (438 size)

Single Layer Turns

Single Layer RDC (Ohms, Ω)

AWG Wire Size

17 20 23 26 30 34 38 43 48 54 61 69 77 87 98 109 122 137 153 170

0.00160 0.00229 0.00323 0.00449 0.00636 0.00887 0.0123 0.0172 0.0238 0.0332 0.0467 0.0657 0.0913 0.1287 0.1821 0.2519 0.354 0.497 0.699 0.969

8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27

MAGNETICS

57.2 mm OD (195 size)

Single Layer Turns

Single Layer RDC (Ohms, Ω)

AWG Wire Size

Single Layer Turns

Single Layer RDC (Ohms, Ω)

18 21 24 27 31 35 39 44 50 56 63 71 80 90 101 112 126 141 158 175

0.00280 0.00405 0.00573 0.00801 0.0114 0.0160 0.0223 0.0314 0.0446 0.0622 0.0878 0.124 0.175 0.246 0.349 0.483 0.683 0.961 1.36 1.88

8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27

20 23 26 30 34 39 43 49 55 62 70 78 88 99 111 124 138 156 174 193

0.00322 0.00458 0.00642 0.00921 0.0130 0.0185 0.0254 0.0362 0.0508 0.0714 0.101 0.141 0.199 0.281 0.398 0.555 0.777 1.10 1.56 2.16

Winding Tables

Winding Tables 57.2 mm OD (109 size)

77.8 mm OD (866 size)

132.6 mm OD (337 size)

AWG Wire Size

Single Layer Turns

Single Layer RDC (Ohms, Ω)

AWG Wire Size

Single Layer Turns

Single Layer RDC (Ohms, Ω)

AWG Wire Size

Single Layer Turns

Single Layer RDC (Ohms, Ω)

8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27

29 33 37 42 48 54 60 68 76 85 96 108 120 135 152 169 189 212 238 263

0.00397 0.00558 0.00773 0.0109 0.0154 0.0215 0.0297 0.0420 0.0586 0.0816 0.115 0.162 0.225 0.318 0.451 0.625 0.880 1.24 1.76 2.43

8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27

41 47 53 60 67 76 85 95 107 120 135 151 169 189 212 236 264 296 331 367

0.00607 0.00860 0.0120 0.0169 0.0234 0.0329 0.0459 0.0640 0.0901 0.126 0.178 0.248 0.348 0.487 0.689 0.958 1.35 1.90 2.68 3.72

6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25

54 61 69 78 87 99 111 124 138 155 174 195 218 244 273 306 343 381 426 478

0.00890 0.0124 0.0175 0.0247 0.0344 0.0489 0.0685 0.0956 0.133 0.188 0.265 0.371 0.522 0.733 1.03 1.45 2.05 2.85 4.02 5.68

62.0 mm OD (620 size)

77.8 mm OD (906 size)

165.1 mm OD (165 size)

AWG Wire Size

Single Layer Turns

Single Layer RDC (Ohms, Ω)

AWG Wire Size

Single Layer Turns

Single Layer RDC (Ohms, Ω)

AWG Wire Size

Single Layer Turns

Single Layer RDC (Ohms, Ω)

6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25

20 23 26 30 34 38 43 49 54 61 69 78 87 98 110 123 138 154 172 194

0.00260 0.00368 0.00517 0.00741 0.0104 0.0146 0.0205 0.0291 0.0402 0.0568 0.0805 0.114 0.159 0.225 0.316 0.444 0.629 0.878 1.24 1.75

8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27

41 47 53 60 67 76 85 95 107 120 135 151 169 189 212 236 264 296 331 367

0.00660 0.00937 0.0131 0.0184 0.0256 0.0361 0.0504 0.0703 0.0991 0.139 0.195 0.274 0.383 0.538 0.761 1.06 1.49 2.10 2.96 4.11

6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25

72 81 91 103 115 130 145 163 182 204 228 256 286 320 358 401 449 499 558 625

0.0139 0.0193 0.0272 0.0384 0.0536 0.0759 0.106 0.149 0.209 0.293 0.412 0.579 0.814 1.14 1.61 2.26 3.21 4.46 6.29 8.86

74.1 mm OD (740 size)

101.6 mm OD (102 size)

AWG Wire Size

Single Layer Turns

Single Layer RDC (Ohms, Ω)

AWG Wire Size

Single Layer Turns

Single Layer RDC (Ohms, Ω)

6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25

29 33 38 43 49 55 62 70 78 88 98 110 124 139 155 174 195 217 243 273

0.00450 0.00632 0.00907 0.0128 0.0182 0.0255 0.0358 0.0505 0.0706 0.0997 0.139 0.196 0.277 0.390 0.546 0.769 1.09 1.52 2.14 3.03

6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25

38 43 49 55 62 70 79 89 99 112 125 140 157 176 197 221 248 275 308 345

0.00489 0.00682 0.00965 0.0135 0.0189 0.0266 0.0373 0.0524 0.0730 0.103 0.145 0.202 0.285 0.400 0.561 0.790 1.12 1.55 2.19 3.09

Ω

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Other Products from Magnetics Ferrites

Tape Wound Cores

Magnetics’ ferrite cores are manufactured for a wide variety of applications. Magnetics has developed and produces the leading MnZn ferrite materials for power transformers, power inductors, wideband transformers, common mode chokes, and many other applications. In addition to offering the leading materials, other advantages of ferrites from Magnetics include: the full range of standard planar E, ER, and I cores; the widest range of toroid sizes in power and high permeability materials; standard gapping to precise inductance or mechanical dimension; a wide range of available coil formers and assembly hardware; and superior toroid coatings available in several options.

Power Materials Five low loss materials are engineered for optimum frequency and temperature performance in power applications. Magnetics’ R, P, F, L, and T materials provide superior saturation, high temperature performance, low losses and product consistency.

Shapes: E cores, Planar E cores, ER cores, ETD, EC, U cores, I cores, PQ, Planar PQ, RM, Toroids, Pot cores, RS (round-slab), DS (double slab), EP, Special Shapes.

Applications: Telecomm power supplies, computer power supplies, commercial power supplies, consumer power supplies, automotive, DC-DC converters, telecomm data interfaces, impedance matching transformers, handheld devices, high power control (gate drive), computer servers, distributed power (DC-DC), EMI filters, aerospace, and medical.

High Permeability Materials Two high permeability materials (5,000µ J material and 10,000µ W material) are engineered for optimum frequency and impedance performance in signal, choke and filter applications. These Magnetics materials provide superior loss factor, frequency response, temperature performance, and product consistency.

Shapes: Toroids, E cores, U cores, RM, Pot cores, RS (round-slab), DS (double slab), EP, Special Shapes.

Applications: common mode chokes, EMI filters, other filters, pulse transformers, current transformers, broadband transformers, current sensors, telecomm data interfaces, impedance matching interfaces, handheld devices, spike suppression, and gate drive transformers.

100

MAGNETICS

Magnetics strip wound cores are made from high permeability magnetic strip alloys of nickel-iron (80% or 50% nickel), and silicon-iron. The alloys are know as Orthonol®, Permalloy 80, Supermalloy, 48 Alloy, Magnesil®, and Supermendur. Tape Wound Cores are produced as small as 0.438” OD to more than 9” OD, in hundreds of sizes. For a wide range of frequency applications, materials are produced in thicknesses from 1/2 mil (0.013 mm) through 4 mils (0.102 mm). Cases are robust nylon and aluminum boxes, rated for 200°C continuous operation and 2,000 minimum voltage breakdown.

Applications: aerospace applications, radar installations, jet engine controls, power supplies, current transformers and other high reliability applications.

Bobbin Cores Magnetics bobbin cores are miniature tape cores made from ultra-thin (0.000125” to 0.001” thick) strip material wound on nonmagnetic stainless steel bobbins. Bobbin Cores are generally manufactured from Permalloy 80 and Orthonol®. Covered with protective caps and then epoxy coated, Bobbin Cores can be made as small as 0.05” ID and with strip widths down to 0.032”. Bobbin Cores can switch from positive to negative saturation in a few microseconds or less, making them ideal for analog logic elements, magnetometers, and pulse transformers.

Applications: high frequency magnetic amplifiers, flux gate magnetometers, harmonic generators, oscillators, pulse transformers, current transformers, analog counters and timers and inverters.

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Design with Magnetics Cores From novice to experienced designers, our Engineers Tool Box has all the tools you need get your design started.

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