100 V, 120 A N-channel — the headline numbers
The STP185N10F3: The TO-220 through-hole package handles the dissipation, with a 300 W power limit at the case.
Temperature range — military-grade junction
The gate threshold voltage is 4 V maximum at 250 µA drain current, so a 10 V gate drive is the standard for hard switching — the 4.8 mOhm Rds(on) is measured at that drive level. The ±20 V gate-source maximum gives you some margin for ringing on long gate traces, but you still want a gate clamp or zener if the layout is noisy.
