600 V, 6 A N-channel MOSFET in TO-220 — what it was designed for
The STP6NC60: The 150°C maximum junction temperature and 125 W power dissipation rating suit designs with moderate thermal budgets in industrial and consumer power systems.
Any buyer filling a BOM line for this part should confirm availability and current pricing at quote time, as the surplus channel is finite and pricing reflects scarcity rather than factory list.
The 600 V Vdss rating places this part in the 500–650 V class typical for universal-input AC-DC converters. The 1.2 Ohm maximum Rds(on) at 10 V gate drive means the gate driver must supply a clean 10 V rail; driving from a 5 V logic signal will not fully enhance the channel, and the on-resistance will be significantly higher than the datasheet figure.
Package and mounting — TO-220-3
The supplier device package is TO-220. For a rework or repair scenario, the through-hole leads are straightforward to remove with a solder sucker or desoldering wick, and the tab can be bolted to a heatsink with an insulating washer if the design requires isolation. The package is compatible with the standard TO-220 footprint used across many ST and competitor power MOSFETs in this voltage class.