Hello. Welcome to Futurlec. The electronic components Superstore. To find the component your looking for, either search by Part Number or visit the relative department. Need Help. TO-220 TO220LGBA - TO-220 Heatsink Small - Black Anodised Aluminium Photograph Features Suits TO-220 Devices Suitable for PCB Mounting Pre-Tapped Screw Hole Knurled Fins for Better Heat Dissipation Dimensions: Length - 25mm, Width - 17mm, Height - 25mm