Catalog > Electro-Mechanical Components > Heatsinks > Extruded Extruded Heatsink Extruded Heatsink SK181-50SA Extruded Heatsink • Rth= 4 K/W • Length : 50mm • Black Anodised surface 85.50 ZAR inc for 1 Each 1 in Stock Add Specifications, Prices & Availability may change without notice. Images are for illustration purposes only. E&OE Specifications Thermal Resistance: 3 - 1.5 K/W Length: 75 mm Surface: Black Anodised Drilling Pattern: CB Height: 25.4 mm Width: 104.8 mm Plate Thickness: 4.7 mm