E-SERIES Datasheet, PDF (1/1 Pages) Ohmite Mfg. Co. – Vertical through-hole PCB mounting

E Series Heatsinks
For TO-220 devices
0.138"
(3.50mm +.20/-.10)
ø0.098"
(2.50mm)
0.689"
(17.50mm ±.15)
1.00"
0.437" ^(25.40mm)
(11.10mm ±.30)
0.055"
(1.40mm)
0.630"
(16.00mm ±.20)
1.378"
(35.00mm ±.20)
ø0.142"
(3.60mm +.10/-0)
0.370"
(9.40mm ±.20)
0.531"
(13.50mm ±.20)
0.720"
(18.30mm ±.20)
1.00"
(25.40mm ±.20)
Height H
0.50"
(12.70mm)
Heatsink
Part Number
EV-T220-38E
EA-T220-38E
EV-T220-51E
EA-T220-51E
EV-T220-64E
EA-T220-64E
Height
(in. ±.010 / mm ±.25)
1.5 / 38.10
For
Package
Type
TO-220
2.0 / 50.80
TO-220
2.5 / 63.50
TO-220
Ohmite
Resistor
Series
TBH25, TCH35
TBH25, TCH35
TBH25, TCH35
Surface
Area
(in²)
Weight
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
F eat u res
• Vertical through-hole PCB
mounting
• 0.142 in. diameter mounting
holes (3)
S pec i f i cat i ons
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
L an d P attern
0.500"
(12.70mm)
0.031"
(0.79mm)
Device
Center
Line
ø 0.105"
(2.67mm)
H eat D i ss i pat i on
0
100
200
-E38
Air Velocity (ft./min.)
400
600
80
-E51
60
-E64
40
800
1000
10
-E38
8
-E51
6
-E64
4
ORDERING INFORMATION
Series
Package type
to be heatsinked RoHS Compliant
EV-T220-51E
Finish
A = black anodized
V = degreased
Height
(mm)
20
0
0
2
0
2
4
6
8
10
Heat Dissipated (watts)
S tandard p art n u m b ers F or E S eries
Part Number Description
EV-T220-38E
EA-T220-38E
Heat sink for TO-220, no finish (degreased)
Heat sink for TO-220, black anodized
EV-T220-51E
EA-T220-51E
Heat sink for TO-220, no finish (degreased)
Heat sink for TO-220, black anodized
EV-T220-64E
EA-T220-64E
Heat sink for TO-220, no finish (degreased)
Heat sink for TO-220, black anodized
Packaging
Bulk
Bulk
Bulk
Bulk
Bulk
Bulk
70 Ohmite Mfg. Co.
1-866-9-OHMITE • Int’l 1-847-258-0300 • Fax [phone] • www.ohmite.com • [e-mail]