Catalog > Electro-Mechanical Components > Heatsinks > Extruded for TO-3 TO-66 Extruded Heatsink for TO-3 TO-66 Extruded Heatsink SK18-75SA Extruded Heatsink for TO-3 TO-66 • pattern not Drilled • Rth= 2.5 K/W • Length : 75mm • Black Anodised surface 61.90 ZAR inc for 1 Each 0 in Stock Add Specifications, Prices & Availability may change without notice. Images are for illustration purposes only. E&OE Additional Information Drilling Pattern not Drilled Thermal Resistance 2.5 K/W Length 75mm Surface Type Black Anodised