csM series Board Mount Heat Sink For TO-220 Devices The economically priced CSM Series is suitable for use with TO-220 devices found in active components offer a range of thermal performance from 18.0 to as well as power resistors. With surface areas rang- 9.8 C/W. Each device offers solder able mounting ing from 1188 Sq. mm to 6645 Sq. mm, the CSM feet and anywhere from 1, 2 or 3 mounting holes are family comes in 5 configurations, all of them with available for convenient device attachment. Black Anodized surface treatment. These heatsinks series sPeciFicatiONs Heatsink Surface Area Weight Length L Thermal 2 2 Part Number (in / mm ) (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 Available for custom orders only, not offered as standard length characteristics Heat Dissipation Heat Sink Aluminum Alloy 6063-T5 or Equivalent Heat dissipation is the total for ALL DEVICES attached to with either degreased or black anodized the heat sink finish. Air Velocity (ft./min.) 300 400 500 600 700 800 900 1000 Solder Foot Cold-rolled Steel, surface tin plated. 150 10 for improvement, use thermal joint com- Interface 135 9 pound, 0.005 Grafoil (TGon 800 by Laird), Thermal 120 8 or phase change material (Hi-Flow by Resistance 105 7 Bergquist) 90 6 75 Insulator (Optional) Sil-Pad 900-S, K6 800-S and 5 60 K10 by Bergquist 4 45 3 CSM221-12AE 30 CSM221-28AE 2 CSM221-40AE 15 1 0 0 0 2 4 6 8 10 12 14 Heat Dissipated (watts) Air Velocity (ft./min.) 300 400 500 600 700 800 900 1000 150 10 135 9 120 8 105 7 90 6 75 5 60 4 45 3 CSM222-30AE 30 2 CSM223-50AE 15 1 0 0 0 2 4 6 8 10 12 14 Heat Dissipated (watts) (continued) 164 1-866-9-OHMITE Intl 1-847-258-0300 Fax 1-847-574-7522 www.ohmite.com info ohmite.com Case Temp. Rise above Case Temp. Rise above Ambient (C) Ambient (C) Thermal Resistance from Case Thermal Resistance from Case Surface to Ambient (C/watts) Surface to Ambient (C/watts)csM series Board Mount Heat Sink For TO-220 Devices diMeNsiONs Dimensions in mm M3*0.5P thread Tapping. JIS-2b standard chamfer 0.3m CSM221-12AE CSM221-40AE 26 0.20 7 12.50 6 .20 0.20 13 0.20 12.50 9 31.20 31.20 16.60 16.60 0.20 0.20 3.50 3.50 +0/-0.20 +0-0.20 2.50 2.50 1.20 1.20 7 13 0.10 13.50 0.20 3 0.25 6 3 0.25 26 9 .10 1.7 1.7 40 12 CSM221-28AE CSM222-30AE 4.1 0.20 14.90 14.27 6.50 15 0.20 12.50 0.20 0.20 9 10.10 4.55 31.20 31.20 16.60 16.60 0.20 0.20 3.50 +0-0.20 3.50 +0/-.20 2.50 2.50 15 2 0.10 1.20 1.20 22 24 0.10 3 0.25 3 0.25 28 27 0.10 1.7 1.7 29.80 CSM223-50AE* hOw tO Order 18 0.20 13 0.20 10.45 RoHS Compliant 11.0 CSM221-12AE 31.20 Series Extrusion Extrusion Black type width anodized 8.9 16.60 0.20 3.50 +0-0.20 5.3 2.50 1.20 35 3 0.25 45 0.10 1.7 50 *Available for custom orders only, not offered as standard length rev 1/20-1 1-866-9-OHMITE Intl 1-847-258-0300 Fax 1-847-574-7522 www.ohmite.com info ohmite.com 165