Through-hole TO-220 — rework and mounting reality
The TO-220-3 through-hole package is a workhorse for power semiconductors. It bolts to a heatsink with a single M3 screw and a thermal pad or grease — the metal tab is the drain, so insulating bushings are needed if the heatsink is grounded.
Active production, ROHS3, and sourcing posture
The OptiMOS series has been a stable Infineon line for years; PCNs are rare and typically limited to fab-site changes. No direct second-source equivalent is listed in the Infineon cross-reference.
