Catalog > Electro-Mechanical Components > Heatsinks > Extruded Standard Extruded Heatsink for Standard for Extruded Heatsinks SK99-37,5SA Standard Extruded Heatsink 4.3 - 2.2 K/W 148.20 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 : 4.3 - 2.2 K/W Length : 37.5 mm Surface : black anodised Height : 20 mm Width : 54 mm Plate Thickness : 4 mm