1-866-9-ohmite ? intl 1-847-258-0300 ? fax 1-847-574-7522 ? www.ohmite.com ? info@ohmite.com 164 characteristics CSM series board mount heat sink for to-220 devices heatsink surface area weight length l thermal part number (in 2 / mm 2 ) (oz / g) (mm) res.* (c/w) CSM221-12ae 1.84 / 1,188 0.13/ 3.7 12 18.0 CSM221-28ae 4.30 / 2,772 0.3 / 8.5 28 12.8 CSM221-40ae 6.14 / 3,960 0.43 / 12.2 40 12.1 CSM222-30ae 6.25 / 4,029 0.5 / 14.2 30 11.3 CSM223-50ae 10.30 / 6,645 0.6 / 17.0 50 9.8 *free convection at 10 watts dissipation series specif ications heat dissipation heat dissipation is the total for all devices attached to the heat sink (continued) 600 400 500 900 700 800 heat dissipated (watts) 4 2 0 10 8 6 12 14 300 1000 air velocity (ft./min.) thermal resistance from case surface to ambient (c/watts) case te mp. rise above ambient (c) CSM221-12ae CSM221-28ae CSM221-40ae 0 15 30 45 60 75 90 150 135 105 120 0 1 2 3 4 5 6 7 8 9 10 600 400 500 900 700 800 heat dissipated (watts) 4 2 0 10 8 6 12 14 300 1000 air velocity (ft./min.) thermal resistance from case surface to ambient (c/watts) case te mp. rise above ambient (c) CSM222-30ae CSM223-50ae 0 15 30 45 60 75 90 150 135 105 120 0 1 2 3 4 5 6 7 8 9 10 heat sink aluminum alloy 6063-t5 or equivalent with either degreased or black anodized finish. solder foot cold-rolled steel, surface tin plated. interface thermal resistance for improvement, use thermal joint com - pound, 0.005 grafoil (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 the economically priced CSM series is suitable for use with to-220 devices found in active components as well as power resistors. with surface areas rang - ing from 1188 sq. mm to 6645 sq. mm, the CSM family comes in 5 configurations, all of them with black anodized surface treatment. these heatsinks offer a range of thermal performance from 18.0 to 9.8 c/w. each device offers solder able mounting feet and anywhere from 1, 2 or 3 mounting holes are available for convenient device attachment.
1-866-9-ohmite ? intl 1-847-258-0300 ? fax 1-847-574-7522 ? www.ohmite.com ? info@ohmite.com 165 18 0.20 CSM223-50ae 13 0.20 16.60 0.20 2.50 35 50 31.20 45 0.10 10.45 3.40 3.50 +0-0.20 1.20 22 29.80 2.50 16.60 0.20 14.90 0.20 CSM222-30ae 31.20 27 0.10 14.27 3 10.10 3.50 +0-0.20 1.20 15 0.20 CSM221-28ae 6.50 0.20 28 31.20 16.60 0.20 2.50 15 24 0.10 2 0.10 12.50 3.50 +0/-.20 3.40 9 1.20 2.50 16.60 0.20 26 31.20 7 40 7 0.20 13 0.20 26 0.20 CSM221-40ae 13.50 0.20 13 0.10 3.40 12.50 3.50 +0-0.20 2.50 31.20 16.60 0.20 9 .1 0 3.40 12 6 6 .20 CSM221-12ae 12.50 3.50 +0/-0.20 9 dimensions dimensions in mm; m3*0.5p thread tapping. jis-2b standard chamfer 0.3m ho w to order CSM series board mount heat sink for to-220 devices CSM221-12ae series extrusion type extrusion width black anodized rohs compliant
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