# TO-220-3

The TO-220 is the iconic through-hole power semiconductor package with a metal tab for heatsinking. With three leads and a mounting hole, it handles up to 125W (with heatsink). Home to the 7805/7812 regulator family, IRF540 MOSFET, TIP120 darlington, and hundreds of power devices. The 3D model shows the plastic body, metal tab, and formed leads.