Catalog > Electro-Mechanical Components > Heatsinks > Special Type for . Special Heatsink for . Special Heatsink SK68-75SA Special Heatsink • pattern Drilled • Rth= 3.8 K/W • Length : 75mm • Black Anodised surface 175.56 ZAR inc for 1 Each 4 in Stock Add Specifications, Prices & Availability may change without notice. Images are for illustration purposes only. E&OE Additional Information Drilling Pattern Drilled Thermal Resistance 3.8 K/W Length 75mm Surface Type Black Anodised