Catalog > Electro-Mechanical Components > Heatsinks > Extruded for TO-3 Extruded Heatsink for TO-3 Extruded Heatsink SK18-1000SA Extruded Heatsink for TO-3 • pattern not Drilled • Rth= 2.25 K/W • Length : 1000mm • Black Anodised surface Call for Price Add Specifications, Prices & Availability may change without notice. Images are for illustration purposes only. E&OE Additional Information Drilling Pattern not Drilled Thermal Resistance 2.25 K/W Length 1000mm Surface Type Black Anodised