Catalog > Electro-Mechanical Components > Heatsinks > U-Shaped SK18-100SA Extruded Heatsink Part No: SK18-100SA 112.70 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 Type Board Level, Extrusion Shape Rectangular Length 3.937" (100.00mm) Width 1.969" (50.00mm) Fin Height 0.787" (20.00mm) Power Dissipation @ Temperature Rise 22.86W @ 80°C Thermal Resistance @ Forced Air Flow 1.08°C/W Thermal Resistance @ Natural 3.5°C/W Material Aluminum Material Finish Black Anodized