Gate drive and switching budget
The IRFZ48NSTRLPBF: Gate charge totals 81 nC at 10 V, so a driver sourcing 1 A can switch the gate in about 81 ns. The 1970 pF input capacitance at 25 V drain-source gives a rough Miller plateau — the actual switching loss depends on the gate-drive current and the drain-current slew rate. The ±20 V maximum gate-source rating leaves headroom for 12 V or 15 V gate drives common in industrial power supplies.
Thermal and package — D2PAK mounting
The -55°C to 175°C operating range covers military and industrial environments.
