# Heat Sink, TO-3, 2.8 °C/W, TO-3, 65 mm, 20 mm, 50 mm

![Product image](https://novapart.co/image/farnell:4621347/)

**URL**: https://novapart.co/products/SK%2048%2050%20SA%20TO%203/heat-sink-to-3-28-c-w-65-mm-20-50
**SKU**: SK 48 50 SA TO 3
**Manufacturer**: FISCHER ELEKTRONIK
**Category**: Cooling & Thermal Management || Heat Sinks || Natural Convection Heat Sinks
**Price**: €4.0500
**Stock**: 25+
**Lead Time**: 92 days (indicative)

## Description

Thermal Resistance:2.8°C/W; Packages Cooled:TO-3; External Width - Metric:65mm; External Height - Metric:20mm; External Length - Metric:50mm; External Diameter - Metric:-; Heat Sink Material:Aluminiu

## Specifications

| Parameter | Value |
|---|---|
| Svhc | No SVHC (25-Jun-2025) |
| Product Range | - |
| Packages Cooled | TO-3 |
| Heat Sink Material | Aluminium |
| Thermal Resistance | 2.8°C/W |
| External Width - Metric | 65mm |
| External Height - Metric | 20mm |
| External Length - Metric | 50mm |
| External Width - Imperial | 2.56" |
| External Diameter - Metric | - |
| External Height - Imperial | 0.79" |
| External Length - Imperial | 1.97" |
| External Diameter - Imperial | - |

## Datasheet

📄 [Download PDF](https://novapart.co/datasheet/farnell:4621347/)

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## ika2= 

## **Standard extruded heatsinks** 

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art. no. 30 [[TT]] [id<br>to Kw {Vf<br>aS A AA ee<br>1 @2,7 + N 2 od<br>i] s-\ ee| | ft tt<br>34.4’ 4 eeINE<br>65 reretT| [TT yt le<br>50 100 150 200 [mm]<br>SK 185 ... extruded heatsink for PCB mounting  ➔ A 100<br>please indicate: ... ... (optional)<br>37.5 50 1000 mm TO 3; CB<br>art. no.<br>Rh 50° 7 7 | | | IW<br>A<br>i 3ENE<br>} < TN<br>a a ee<br>65 cS ee|<br>SK 48 ... 50 100 150 200 [mm]<br>please indicate: ... ... (optional)<br>37.5 50 75 100 1000 mm TO 3; CB; SSR 1; SSR 3<br>art. no.<br>wn 30 RM Sf 7 | [ [ 7 [id<br>a Kw {|<br>Yr | yy | yy |] yy<br>A Ps INE tT ry<br>a nN- as)v 2NeT_T<br>a r | | | | | J 4<br>|<br>88 50 100 150 200 [mm]<br>SK 79 ... with slots for cover plates or PCBs<br>please indicate: ... ... (optional)<br>37.5 50 75 100 1000 mm TO 3; CB<br>art. no.<br>30 fm SCT TT TT] Tid<br>— ee ee<br>t 2 Kw {|<br>ra ow as Ps Pst<br>Ps  ~ET<br>aYr |; {| 7 ee| fy<br>|<br>88 50 100 150 200 [mm]<br>SK 08 ... with slots for cover plates or PCBs<br>please indicate: ... ... (optional)<br>37.5 50 75 100 1000 mm TO 3; CB<br>art. no.<br>Rh<br>0 [30] Ik/w1<br>v 257. [ [| | [| | id<br>a A<br>cd A OO<br>2 isp NE<br>° od A, A<br>” iop<br>7° A<br>oss | | Pat Tt<br>sry y [| | | | id<br>[_—_ 100fs ee50 100 150 200 [mm]<br>SK 88 ... with slots for cover plates or PCBs<br>please indicate: ... ... (optional)<br>37.5 50 75 100 1000 mm TO 3<br>H Hole pattern ➔ A 21 Retaining springs for transistors ➔ A 111 – 116 H<br>A 71 Standard aluminium profiles ➔ A 131 – 132 Assignment table ➔ A 18 - 20<br>Extruded heatsinks ➔ A 22 – 83 Thermal. conductive silicone foam foil ➔ E 6<br>Technical annotations ➔ A 2 - 7 Thermal conductive foil ➔ E 5<br>**----- End of picture text -----**<br>


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## Links

- [View this product on Novapart](https://novapart.co/products/SK%2048%2050%20SA%20TO%203/heat-sink-to-3-28-c-w-65-mm-20-50)
- [Request a quote for this part](https://novapart.co/quote/)
- [Supplier page](https://es.farnell.com/fischer-elektronik/sk-48-50-sa-3/heat-sink-for-to-3/dp/4621347)
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