VM Series Heatsink

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 convection cooling) or horizontal format (forced convection cooling) to fit customer applications.
Horizonral
Mounting Style
Vertical
Mounting Style
S ERIE S S P ECI F ICATI O N S
Heatsink
Surface Area
Weight
Length L or
Surface
Part Number
Mount
(in2 / mm2)
(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
characteristics
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 for improvement, use thermal joint compound, 0.005 Grafoil
Resistance (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
Heat Dissipation
Air Velocity (ft./min.)
0
100 200 300 400 500 600 700 800
1.6
70
1.4
60
1.2
50
1.0
40
0.8
30
0.6
20
0.4
10
0.2
0
0
5
10
15
Heat Dissipated (watts)
20
Thermal Resistance from Mounting
Surface to Ambient (°C/watts)
Mounting Surface Temp. Rise
above Ambient (°C)
80
0
(continued)
1-866-9-OHMITE • Int’l 1-847-258-0300 • Fax 1-847-574-7522 • www.ohmite.com • [email protected]
169
VM Series
Variable Mount Heatsink Series
d i m e ns i ons
0.98"
(25mm)
1.08"
(27.5mm)
Horizontal Configuration
Vertical Configuration
0.42"
(10.6mm)
1.52"
(38.6mm)
(in./mm)
0.08"
(2mm)
1.52"
(38.6mm)
1.56"
(39.6mm)
2.36"
(60.0mm)
ø0.105" pth
(2.67mm)
user
defined
0.73"
(18.6mm)
0.138"
(3.5mm)
1.36"
(34.6mm)
1.56"
(39.6mm)
Vertical Configuration
0.42"
(10.6mm)
ø0.142"
(3.6mm)
1.52"
(38.6mm)
0.98"
(25mm)
rizontal Configuration
0.08"
(2mm)
1.52"
(38.6mm)
1.56"
(39.6mm)
2.36"
(60.0mm)
" pth
7mm)
user
defined
0.73"
(18.6mm)
0.138"
(3.5mm)
0.091"
(2.3mm)
1.56"
(39.6mm)
1.72"
(43.8mm)
0.157"
(4.0mm)
1.36"
(34.6mm)
0.98"
(25.0mm)
ø0.105" pth
(2.67mm)
1.52"
8.6mm)
0.08"
(2.0mm)
2.36"
(60.0mm)
0.08"
(2.0mm)
how to order
Finish
A = black anodized
V = degreased
VM1-038-1AE
Length
Series Mount
1 = Vertical
(mm)
2 = Horizontal
3 = Universal
170
RoHS compliant
Configuration
1 = 1 hole (TO-247, TO-220)
1-866-9-OHMITE • Int’l 1-847-258-0300 • Fax 1-847-574-7522 • www.ohmite.com • [email protected]
(4
0.157"
(4.0mm)
1.52"
(38.6mm)
0.98"
(25.0mm)
ø0.105" pth
(2.67mm)
0.091"
(2.3mm)
(6