Ohmite EV-T220-38E E series heatsink Datasheet

E Series Heatsinks
For TO-220 devices
0.138"
(3.50mm +.20/-.10)
ø0.098"
(2.50mm)
1.00"
(25.40mm)
0.437"
(11.10mm ±.30)
0.055"
(1.40mm)
0.689"
(17.50mm ±.15)
0.370"
(9.40mm ±.20)
ø0.142"
(3.60mm +.10/-0)
0.630"
(16.00mm ±.20)
1.378"
(35.00mm ±.20)
0.50"
(12.70mm)
0.531"
(13.50mm ±.20)
0.720"
(18.30mm ±.20)
1.00"
(25.40mm ±.20)
F eat u res
• Vertical through-hole PCB
mounting
• 0.142 in. diameter mounting
holes (3)
Height H
S pec i f i cat i ons
Height
(in. ±.010 / mm ±.25)
For
Package
Type
Ohmite
Resistor
Series
Surface
Area
(in2)
Weight
1.5 / 38.10
TO-220
TBH25, TCH35
2.0 / 50.80
TO-220
TBH25, TCH35
2.5 / 63.50
TO-220
TBH25, TCH35
Heat sink: Aluminum 6063-T5
or equivalent with either black
anodized or degreased finish
Solder feet: Tin plated brass
Interface thermal resistance:
for improvement, use thermal
joint compound or 0.005 Grafoil
(TGon 800 by Laird)
Interface electrical isolation:
Sil-Pad 900S by Bergquist or
equivalent
H eat D i ss i pat i on
L an d P attern
Mounting Surf. Temp. Rise above Ambient (°C)
0.500"
(12.70mm)
0.031"
(0.79mm)
ø 0.105"
(2.67mm)
Device
Center
Line
O R D E R I N G I N F O R M AT I O N
Series
Thermal
Resistance*
(°C/W)
11.5
0.63 oz/18g 11.4
9.5
15.2
0.85 oz/24g 9.0
7.5
18.8
1.06 oz/30g 7.4
6.2
*Natural convection at 10W dissipation
Package type
to be heatsinked
RoHS Compliant
EV-T220-51E
Finish
A = black anodized
V = degreased
100
0
200
Air Velocity (ft./min.)
400
600
800
-E38
1000
10
-E38
8
80
-E51
-E51
6
60
-E64
-E64
40
4
2
20
0
0
0
2
4
6
Heat Dissipated (watts)
8
Height
(mm)
S tandard p art n u m b ers F or E S eries
Part NumberDescription
Packaging
EV-T220-38E
EA-T220-38E
Heat sink for TO-220, no finish (degreased)
Heat sink for TO-220, black anodized
Bulk
Bulk
EV-T220-51E
EA-T220-51E
Heat sink for TO-220, no finish (degreased)
Heat sink for TO-220, black anodized
Bulk
Bulk
EV-T220-64E
EA-T220-64E
Heat sink for TO-220, no finish (degreased)
Heat sink for TO-220, black anodized
Bulk
Bulk
70
Ohmite Mfg. Co.
1-866-9-OHMITE • Int’l 1-847-258-0300 • Fax 1-847-574-7522 • www.ohmite.com • [email protected]
10
Thermal Resistance from Mounting
Surface to Ambient (°C/watts)
Heatsink
Part Number
EV-T220-38E
EA-T220-38E
EV-T220-51E
EA-T220-51E
EV-T220-64E
EA-T220-64E
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