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VM Series

Variable Mount Heatsink Series

Ohmite introduces this new versatile heatsink

design. This new design can accommodate several

different industry packages. This design also lets the

customer choose a mounting style using screws or

clips for secure mounting to the heatsink. These one

of a kind heatsinks are offered in a vertical (free con-

vection cooling) or horizontal format (forced convec-

tion cooling) to fit customer applications.

Horizonral

Mounting Style

Vertical

Mounting Style

characteri S tic S

Heatsink

Surface Area

Weight

Length L or

Surface

Part Number

Mount

(oz / g) Height H (mm)

Finish

VM1-038-1AE

vertical

VM2-038-1AE horizontal 39.6 / 25,546 1.48 / 42

38.6

anodized

VM3-038-1AE universal

S erie S SP eci F icati ONS

(continued)

Heat Dissipation

800

400

600

60

Heat Dissipated (watts)

40

20

10

0

15

5

10

0

50

30

20

80

1.4

1.6

0.6

0.4

0.2

0

0.8

1.0

1.2

0

200

700

300

500

100

Air Velocity (ft./min.)

70

Heat Sink Aluminum Alloy 6063-T5 or Equivalent with either degreased or

black anodized finish

Solder Foot Cold-rolled Steel, Per ASTM A-366 with pure tin over copper

strike. RoHS compliant. Barbed for secure attachment

Interface Thermal

Resistance

for improvement, use thermal joint compound, 0.005 Grafoil

(TGon 800 by Laird), or phase change material (Hi-Flow by

Bergquist) Insulator (Optional) Sil-Pad 900-S, K6 800-S and

K10 by Bergquist