Planar E, I Cores 14 mm – 36 mm
Planar E cores are offered in all of the IEC standard sizes, and a number of other sizes. The leg length and window height (B and D dimensions) are adjustable for specific applications without new tooling. This permits the designer to adjust the final core specification to exactly accommodate the planar conductor stack height, with no wasted space. Clips and clip slots are available in many cases, which is useful for prototyping. I cores are also offered standard, reducing path length and increasing inductance. Planar cores provide the lowest profile design. E-I planar combinations allow practical face bonding in high volume assembly. The flat back can accommodate a heat sink. Differential mode inductors, DC/DC, and AC/DC converters are typical applications for planar cores.
NOMINAL AL (MH/1000T) TYPE/SIZE
ORDERING CODE
L
R
P
F
14/2.5/5 E 14 C I 14 C E 18 C I 18 C E 18 I 18 E 22/4/7 I 22/4/7 E 22 C I 22 C E 22 I 22 E 32 C I 32 C E 32 I 32 E 36/6/18 I 36/6/18
0_41425EC C_41434EC C_41434IC C_41805EC C_41805IC F_41805EC F_41805IC 0_42107EC 0_42107IC C_42216EC C_42216IC F_42216EC F_42216IC C_43208EC C_43208IC F_43208EC F_43208IC 0_43618EC 0_43618IC
780 600 780 1,500 1,800 1,550 1,800 1,350 1,480 2,300 2,900 2,400 2,900 3,200 3,700 3,200 3,700
1,519 1,327 1,504 3,244 3,606 3,244 3,641 2,920 3,320 5,066 6,147 5,066 6,207 6,521 7,321 6,521 7,321 6,678 7,303
1,595 1,399 1,580 3,430 3,801 3,430 3,837 3,173 3,600 5,387 6,506 5,387 6,568 6,918 7,745 6,918 7,745 7,090 7,736
1,765 1,563 1,749 3,853 4,241 3,853 4,278 3,810 4,330 6,131 7,327 6,131 7,932 7,834 8,711 7,834 8,711 8,039 8,729
HOW TO ORDER
C R 4 14 34 EC Shape code Ferrite core material Used for all ferrite types Approximate length in mm Approximate width in mm Geometry code
SHAPE CODE
C – Planar core with clip recesses F or O – Planar core option: no clip recesses For clip slot dimensions—see individual data sheets
GEOMETRY CODE EC – Planar E core IC – Planar I core
Cores are sold per piece (for sets multiply by 2). Any practical gap available, see page 14.
38 Planar E, I Cores - MAGNETICS
E CORE
I CORE