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) 176 1-866-9-OHMITE Intl 1-847-258-0300 Fax 1-847-574-7522 www.ohmite.com info ohmite.com 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