Catalog > Electro-Mechanical Components > Heatsinks > U-Shaped FK224-220MI Attachable Heatsink Heatsink 18 K/W MI=Solderable White Bronz Part No: FK224-220MI 24.73 ZAR inc for 1 Each (Quoting) Add to Cart Specifications, Prices & Availability may change without notice. Images are for illustration purposes only. E&OE Specifications Material : Aluminium For transistor : TO 220 Width : 25 mm Height : 8.3 mm Length : 29.4 mm Thermal resistance : 18 K/W Drilling pattern : TO 220 Surface: Black anodised Solderable surface Version : with solder lug for vertical installation