Catalog > Electro-Mechanical Components > Heatsinks > Finger Shaped Heatsink for TO220 21K/W Attatchable for TO220 for 21K/W for Attatchable Heatsink FK237SA220-H Heatsink for TO220 21K/W Attatchable 39.90 ZAR inc for 1 Each 127 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 21 K/W Length 19.05 mm Surface Type Black Anodised, Solder Pins Tin Plated