Image not available
Illustrative purposes only
SK 48 50 SA TO 3
Heat Sink, TO-3, 2.8 °C/W, TO-3, 65 mm, 20 mm, 50 mm
⚠️ Reference pricing provided. In case of supply shortages, we will connect you with our trusted procurement partners to ensure your project's continuity.
- Manufacturer: FISCHER ELEKTRONIK
- Product type: Natural Convection Heat Sinks
- 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
- 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: -
| Delivery and price | |
|---|---|
| Units per pack | 50 |
| Price | 4.89 € |
| Current stock | 50+ |
| Lead time | 30 days |
**A** -
H
H
**B**
**C**
**D**
**E**
**F**
**G**
**H**
**I**
**K**
**L**
**M**
**H H**
**==> picture [4 x 1] intentionally omitted <==**
**----- Start of picture text -----**<br>
Hola1<br>**----- End of picture text -----**<br>
## ika2=
## **Standard extruded heatsinks**
**==> picture [517 x 753] intentionally omitted <==**
**----- Start of picture text -----**<br>
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>
**N**
**H**
Updated at April 29, 2026
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 →