620 V N-channel in a TO-251 — what the ratings mean
Gate charge is 30 nC at 10 V, low enough that a standard gate driver IC can switch it at moderate frequencies without excessive drive power.
Switching and conduction — the numbers that matter
Input capacitance is 875 pF at 50 V drain bias — a moderate figure that keeps the gate drive current requirement within the range of a typical totem-pole driver. The maximum gate threshold voltage is 4.5 V at 50 µA drain current, confirming the device is fully enhanced only with a 10 V gate signal. Power dissipation is rated at 90 W case-limited; the TO-251 (IPAK) package's thermal performance depends on the PCB copper area under the tab.