Catalog > Electro-Mechanical Components > Heatsinks > Finger Shaped for TO-220 Attachable Finger-Shaped Heatsink for TO-220 Attachable Finger-Shaped Heatsink FK237SA220-O Finger-Shaped Heatsink for TO-220 Attachable • Rth= 21 K/W • Length : 19.05mm • Black Anodised surface 30.27 ZAR inc for 1 Each 68 in Stock Add Specifications, Prices & Availability may change without notice. Images are for illustration purposes only. E&OE Additional Information Thermal Resistance 21 K/W Length 19.05mm Surface Type Black Anodised