Catalog > Electro-Mechanical Components > Heatsinks > U-Shaped Extruded Heatsinks for PCB Mounting for for PCB Mounting Heatsinks Extruded Heatsinks for PCB Mounting Part No: SK68-50AL 89.70 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 Way of Fixation: Transistor Screw Mounting Width: 46 mm Height: 33 mm Plate Thickness: 4 mm Length: 50 mm Thermal Resistance: 5.85 - 2.8 K/W Surface: Raw Degreased Aluminium (by the metre raw aluminium)