Catalog > Electro-Mechanical Components > Heatsinks > Extruded for . Extruded Heatsink for . Extruded Heatsink SK90-75SA Extruded Heatsink • Rth= 0.8 K/W • Length : 75mm • Black Anodised surface 538.08 ZAR inc for 1 Each 1 in Stock Add Specifications, Prices & Availability may change without notice. Images are for illustration purposes only. E&OE Additional Information Thermal Resistance 0.8 K/W Length 75mm Surface Type Black Anodised