CSM223-50AE
HEAT SINK, ALUMINIUM ALLOY, 50MM, TO-220
- Manufacturer: OHMITE
- Product type: Natural Convection Heat Sinks
- Product Range: CSM Series
- Packages Cooled: TO-220
- Heat Sink Material: Aluminium Alloy
- Thermal Resistance: 9.8°C/W
- External Width - Metric: 10.45mm
- External Height - Metric: 31.19mm
- External Length - Metric: 50mm
- External Width - Imperial: 0.41"
- External Height - Imperial: 1.23"
- External Length - Imperial: 1.97"
| Delivery and price | |
|---|---|
| Units per pack | 1 |
| Price | 0.966 € |
| Current stock | 10+ |
| Lead time | 7 days |
## **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 as well as power resistors. With surface areas ranging 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. ## ~~**s e r i e s s P e c i F i c at i O N s**~~ |**Heatsink**|**Surface Area**|**Weight**|**Length L**|**Length L**<br>**Thermal**| |---|---|---|---|---| |**Part Number**|**(in2 / mm2)**|**(oz/ g)**|**(mm) Res.***|**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 ## ~~**c h a r a c t e r i s t i c s**~~ ## **Heat Dissipation** Heat dissipation is the total for ALL DEVICES attached to the heat sink **==> picture [228 x 327] intentionally omitted <==** **----- Start of picture text -----**<br> Air Velocity (ft./min.)<br>300 400 500 600 700 800 900 1000<br>150 10<br>135120 * “es , “es * wel, °° o + we at +” + wet oo 98<br>105 a7 “a, wy e aoie 7<br>90 Me tt y Te o?ove, . “. So os. 6<br>75 te, .a on,4,naa¢ LTT ae. .xanes. ae . ae mae “=meeee 5<br>’ Ste,<br>’ ~ "Oh,<br>60 ¢°° o ww2 +Sy ey ‘ern todeereusenreny 4<br>45 * =Re 3<br>30 o aro *° J””» aajamnee CSM221-12AE CSM221-28AE 2<br>15 rod oe og CSM221-40AE 1<br>0 Ba 0<br>0 2 4 6 8 10 12 14<br>Heat Dissipated (watts)<br>Air Velocity (ft./min.)<br>300 400 500 600 700 800 900 1000<br>150 10<br>135 9<br>120 8<br>105 7<br>90 6<br>75 5<br>60 4<br>45 3<br>CSM222-30AE<br>30 CSM223-50AE 2<br>15 1<br>0 0<br>0 2 4 6 8 10 12 14<br>Heat Dissipated (watts)<br>C/watts) °<br>C)Ambient ( °<br>Case Temp. Rise above<br>Thermal Resistance from Case Surface to Ambient (<br>C/watts) °<br>C)Ambient ( °<br>Case Temp. Rise above<br>Thermal Resistance from Case Surface to Ambient (<br>**----- End of picture text -----**<br> **Heat Sink** Aluminum Alloy 6063-T5 or Equivalent with either degreased or black anodized finish. **Solder Foot** Cold-rolled Steel, surface tin plated. **Interface** for improvement, use thermal joint com- **Thermal** pound, 0.005 Grafoil (TGon 800 by Laird), **Resistance** or phase change material (Hi-Flow by ~~SS~~ Bergquist) **Insulato** r (Optional) Sil-Pad 900-S, K6 800-S and K10 by Bergquist (continued) **164** 1-866-9-OHMITE • Int’l 1-847-258-0300 • Fax 1-847-574-7522 • www.ohmite.com • info@ohmite.com ## **csM series** ## **Board Mount Heat Sink For TO-220 Devices** ## ~~**d i M e N s i O N s**~~ Dimensions in mm; M3*0.5P thread Tapping. JIS-2b standard chamfer 0.3m **==> picture [518 x 389] intentionally omitted <==** **----- Start of picture text -----**<br> CSM221-12AE CSM221-40AE<br>7 26 ±0.20<br> 6 ±.20 12.50 ±0.20 1 3 ±0.20 12.50<br> 9<br>31.20<br> 31.20<br>16.60<br> 16.60 ±0.20 ±0.20<br> φ3.50 3.50<br> +0/-0.20 +0-0.20<br> 2.50 2.50<br>7 1 3 ±0.10 13.50 ±0.20<br> 6 3.40<br>9 ±.10 26 3.40<br> 12 40<br>CSM221-28AE CSM222-30AE<br>6.50 14.90 1 4.27<br>±0.20 1 5 ±0.20 12.50 ±0.20<br> 9 10.10<br>31.20<br>31.20<br>16.60 16.60<br>±0.20 ±0.20<br> 3.50<br>+0-0.20<br> 3.50 +0/-.20<br> 2.50 2.50<br>15 2 ±0.10 Φ1.20<br> 24 ±0.10 22<br> 28 3.40 27 ±0.10 3 Φ1.20<br>29.80<br>**----- End of picture text -----**<br> **==> picture [515 x 227] intentionally omitted <==** **----- Start of picture text -----**<br> CSM223-50AE<br>18 ±0.20 13 ±0.20 10.45 h O w t O O r d e r<br>RoHS Compliant<br>C S M 2 2 1 - 1 2 A E<br>31.20 Series Extrusion Extrusion Black<br>type width anodized<br>16.60<br>±0.20<br> 3.50<br>+0-0.20<br> 2.50<br>Φ1.20<br> 35<br> 3.40<br> 45 ±0.10<br> 50<br>**----- End of picture text -----**<br> ## **CSM223-50AE** **==> picture [146 x 41] intentionally omitted <==** 1-866-9-OHMITE • Int’l 1-847-258-0300 • Fax 1-847-574-7522 • www.ohmite.com • info@ohmite.com **165**
Updated at February 9, 2023
With nearly a century of engineering expertise, Ohmite is a premier manufacturer of high-performance resistive and thermal management products. Founded in 1925, the company has continuously evolved alongside the electronics industry, building a reputation for resolving complex design challenges. Ohmite specializes in delivering reliable solutions for high-current, high-voltage, and high-energy applications across the industrial, medical, aerospace, and transportation sectors. The core of our Ohmite offering centers on their advanced cooling and thermal management solutions, particularly natural convection heat sinks. Engineered to efficiently dissipate thermal energy in demanding environments, these heat sinks help designers overcome critical thermal bottlenecks. By effectively managing heat dissipation, Ohmite's thermal products ensure the optimal performance and extended longevity of sensitive electronic assemblies. Complementing their thermal management expertise, our selection includes precision sensing and circuit protection components. Ohmite's robust force sensors and load cells provide dependable measurement capabilities for specialized industrial applications, while their temperature sensing and compensation NTC thermistors offer accurate environmental monitoring. These product lines reflect Ohmite’s enduring commitment to quality, innovation, and specialized component engineering.
About Novapart
Novapart is a B2B electronic component broker specialising in stock shortages and cost reduction. We source hard-to-find parts and identify compliant alternatives across a catalogue of 410,000+ components from 500+ manufacturers.
Learn more →Stock Shortage Specialist
When a component is unavailable, discontinued or has an unacceptable lead time, we tap into our network of vetted European and Asian distributors to source what you need — without compromising on quality or traceability.
Request a quote →Compliant Alternatives
We identify pin-to-pin, electrically equivalent substitutes that meet the same certifications (RoHS, AEC-Q100, REACH) as your original specification — validated against datasheets, not just part numbers. Often at a lower cost.
BOM Analysis service →