F and R Series Heatsinks
For TO-218, TO-220 and TO-247 devices
FeatuReS
For vertical mounting with solderable pins
For TO-220, TO-218, TO-247
SeRieS SPeciFicatiONS
Height Surface Thermal
Heatsink (in. .010 / Area Res.*
2
Part Number mm .25) For Package Type Ohmite Resistor Series (mm ) Weight (g) (C/W)
RA-T2X-25E 1.0/25.4 TO-220, -218, -247 TBH25,TCH35, TEH70, TEH100 8,901 25 4.8
RA-T2X-38E 1.5/38.1 TO-220, -218, -247 TBH25,TCH35, TEH70, TEH100 12,983 38 3.9
RA-T2X-51E 2.0/50.8 TO-220, -218, -247 TBH25,TCH35, TEH70, TEH100 17,065 51 3.5
RA-T2X-64E 2.5/63.5 TO-220, -218, -247 TBH25,TCH35, TEH70, TEH100 21,148 63 3.1
FA-T220-25E 1.0 / 25.4 TO-220, -218, -247 TBH25,TCH35, TEH70, TEH100 9,285 18 4.7
FA-T220-38E 1.5 / 38.1 TO-220, -218, -247 TBH25,TCH35, TEH70, TEH100 13,756 27 3.8
FA-T220-51E 2.0 / 50.8 TO-220, -218, -247 TBH25,TCH35, TEH70, TEH100 18,222 37 3.4
FA-T220-64E 2.5 / 63.5 TO-220, -218, -247 TBH25,TCH35, TEH70, TEH100 22,814 46 3
*Natural convection
cHaRacteRiSticS
Finish Black anodized
Material 6063-T5 aluminum
Solder 100% Tin (Sn)
PC board attachement 0.091 dia. pre-tinned pins.
Heat Dissipation
R Series F Series
Air Velocity (ft./min.) Air Velocity (ft./min.)
0 100 200 300 400 500 600 700 800 900 1000 0 100 200 300 400 500 600 700 800 900 1000
100 5 100 5
H = 1" H = 1"
90 4.5
90 4.5
H = 1.5" H = 1.5"
H = 2" H = 2"
80 4
80 4
H = 2.5" H = 2.5"
70 3.5
70 3.5
60 3
60 3
50 2.5
50 2.5
40 2
40 2
30 1.5
30 1.5
20 1
20 1
10 0.5
10 0.5
0 0
0 0
0 2 4 6 8 10 12 14 16 18 20
0 2 4 6 8 10 12 14 16 18 20
Heat Dissipated (watts)
Heat Dissipated (watts)
(continued)
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Mounting Surface Temp. Rise
above Ambient (C)
Thermal Resistance from Mounting
Surface to Ambient (C/watts)
Mounting Surface Temp. Rise
above Ambient (C)
Thermal Resistance from Mounting
Surface to Ambient (C/watts)F and R Series Heatsinks
For TO-218, TO-220 and TO-247 devices
dimeNSiONS
(in./mm)
Height
1.638"
(in. .010 /
(41.6mm)
Part Number mm .25)
0.47"
(12.0mm)
RA-T2X-25E 1.0/25.4
0.059"
RA-T2X-38E 1.5/38.1
(1.5mm)
RA-T2X-51E 2.0/50.8
0.98"
(25.0mm)
RA-T2X-64E 2.5/63.5
FA-T220-25E 1.0 / 25.4
0.98"
0.669"
(25.0mm)
FA-T220-38E 1.5 / 38.1
(17.0mm
+0.2/-0)
0.98"
FA-T220-51E 2.0 / 50.8
(25.0mm)
FA-T220-64E 2.5 / 63.5
1.65"
(42.0mm)
0.14"
(3.6mm)
R Series F Series
0.14"
(3.6mm)
(no top hole on
FA-T220-25E)
H 0.56mm
NOTICE:
Dimensional
H 0.56mm
change.
1.000"
Dimensions
(25.4mm)
shown are for
0.720"
0.75"
products pro-
(18.3mm)
(19.1mm)
0.196"
duced after
(5.00mm)
September
0.138"
0.437"
2012
(3.5mm +.3/-.1)
(11.1mm)
0.091" 0.091"
(2.3mm) 1.000" (2.3mm)
1.000"
(25.4mm 0.25)
(25.4mm 0.25)
ORdeRiNg iNFORmatiON
Series T2X = R Series
F or R T220 = F Series RoHS Compliant
RA-T2X-25E
Finish Height
A = black anodized (mm)
V = degreased
Standard part numbers
Part Number Description Packaging
RA-T2X-25E Heat sink for TO-220, TO-218, TO-247, Black Anodized Bulk
RA-T2X-38E Heat sink for TO-220, TO-218, TO-247, Black Anodized Bulk
RA-T2X-51E Heat sink for TO-220, TO-218, TO-247, Black Anodized Bulk
RA-T2X-64E Heat sink for TO-220, TO-218, TO-247, Black Anodized Bulk
FA-T220-25E Heat sink for TO-220, TO-218, TO-247, Black Anodized Bulk
FA-T220-38E Heat sink for TO-220, TO-218, TO-247, Black Anodized Bulk
FA-T220-51E Heat sink for TO-220, TO-218, TO-247, Black Anodized Bulk
FA-T220-64E Heat sink for TO-220, TO-218, TO-247, Black Anodized Bulk
1-866-9-OHMITE Intl 1-847-258-0300 Fax 1-847-574-7522 www.ohmite.com info@ohmite.com 177