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A
Extruded heatsinks for PCB mounting Extruded heatsinks for transistors compact PCB heatsink effective heat dissipation for single and double row transistor mounting profile SK 454 ➔ A 24 profile SK 452 ➔ A 27 specific versions upon customer´s request M 3 bei TO 220
2xM3
M 3 bei SOT 32
16
3 19
1xM3
B
10
21,45
C
10
– – – – –
20
20
20
10
D art. no.
[mm] Rth [K/W]
SK 454 20 1 x M3 ... SK 454 60 3 x M3 ... SK 454 20 2 x M3 ... SK 454 40 4 x M3 ... SK 454 60 6 x M3 ... SK 454 40 2 x M3 TO 220 SK 454 80 4 x M3 TO 220 SK 454 100 5 x M3 TO220 SK 454 80 8 x M3 TO 220 SK 454 100 10xM3 TO220 please indicate:
20 60 20 40 60 40 80 100 80 100
10.8 7.7 10.8 9.4 7.7 9.4 6.5 5.9 6.5 5.9
SOT 32/ TO 220 SOT 32/ TO 220 SOT 32/ TO 220 SOT 32/ TO 220 SOT 32/ TO 220 TO 220 TO 220 TO 220 TO 220 TO 220
E
F
... SOT 32; TO 220
G 19
29
art. no. SK SK SK SK SK SK SK SK SK SK
452 452 452 452 452 452 452 452 452 452
20 1 x M3 40 2 x M3 60 3 x M3 80 4 x M3 100 5 x M3 20 2 x M3 40 4 x M3 60 6 x M3 80 8 x M3 100 10 x M3
M3
2xM3
3,5 25
1xM3
10
20
20
20
10
H
[mm] Rth [K/W] 20 40 60 80 100 20 40 60 80 100
surface:
11.1 7.5 5.9 4.9 4.3 11.1 7.5 5.9 4.9 4.3
TO 218/ TO 220/ TO 247/ TO 248/ TO 3 P TO 218/ TO 220/ TO 247/ TO 248/ TO 3 P TO 218/ TO 220/ TO 247/ TO 248/ TO 3 P TO 218/ TO 220/ TO 247/ TO 248/ TO 3 P TO 218/ TO 220/ TO 247/ TO 248/ TO 3 P TO 218/ TO 220/ TO 247/ TO 248/ TO 3 P TO 218/ TO 220/ TO 247/ TO 248/ TO 3 P TO 218/ TO 220/ TO 247/ TO 248/ TO 3 P TO 218/ TO 220/ TO 247/ TO 248/ TO 3 P TO 218/ TO 220/ TO 247/ TO 248/ TO 3 P
I
K
L
black anodised
M Profiles for lock-in fixing spring Assignment table Thermal conductive material Attachable heatsinks
A 84 – 88 A 18 – 20 E2–5 C 10 – 16
Mica wafers Kapton insulator washers Thermal conductive paste Technical introduction
E 19 E 16 E 21 A2–8
A 96
N