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 TO220 - TO-220 Heatsink Small - Aluminium Photograph Features Suits TO-220 Devices Easy PCB Mounting Small Compact Size Dimensions: Length - 15mm, Width - 10mm, Height - 15mm