600 V, 19 A N-channel MOSFET in TO-220FP — MDmesh™ II
It comes in the TO-220FP full-pack through-hole package, which provides full isolation from the heatsink — no insulating pad or washer is needed, simplifying assembly and improving thermal coupling to the mounting surface.
ST officially lists the STF23NM60N as obsolete. There is no last-time-buy window still open from the factory, so new production lots are sourced through independent distribution. If this part is on your BOM, verify the date codes match your quality requirements — stock surfacing long after the official EOL date warrants extra scrutiny.
The 600 V Vdss makes the STF23NM60N a fit for offline flyback and PFC stages, 400 V bus inverters, and auxiliary power supplies where the DC link sits below 400 V. The 180 mOhm Rds(on) at 10 V gate drive is the figure for conduction loss calculations — at 9.5 A drain current it dissipates about 16 W, which the TO-220FP's 35 W power rating can handle with adequate heatsinking. Gate charge of 60 nC at 10 V is moderate; the driver sees a manageable capacitive load for switching frequencies up to the low 100 kHz range. Input capacitance of 2050 pF at 50 V Vds gives a rough Ciss figure for driver sizing.
The TO-220FP (TO-220 Full Pack) is a fully moulded through-hole package with a metal tab that is electrically isolated — no separate insulator required. The mounting hole fits a standard M3 screw. The junction temperature limit is 150°C, so derate power dissipation accordingly above 25°C case temperature.