Total gate charge is 10 nC at 10 V — a low figure that keeps gate-drive power negligible in flyback converters switching at 65–100 kHz.
Temperature range and thermal derating
Maximum power dissipation of 3.3 W at case temperature 25 °C must be derated above that point — the SOT-223's thermal resistance to ambient on a typical 1 oz copper pad runs about 80–100 °C/W, so a 1 W dissipation raises junction roughly 80–100 °C above ambient.
Active lifecycle, ROHS3, no direct second source
ROHS3 compliant. No official pin-compatible second source is listed on the record; for dual-sourcing, qualify a functionally equivalent 600 V N-channel in SOT-223 from a second vendor against the same Rds(on) and gate-charge targets.