620 V N-channel in a DPAK — offline flyback and auxiliary supply work
The 620 V Vdss rating suits offline flyback converters, auxiliary power supplies, and PFC stages.
On-resistance and gate charge — conduction and switching budget
Maximum on-resistance is 3.6 Ohm at 1.1 A drain current with 10 V gate drive. The 45 W power dissipation rating can handle conduction losses with adequate copper area on the DPAK tab. These numbers are low enough that a standard gate driver or a PWM controller output can switch it at tens of kilohertz without excessive drive current.
The base product number is STD2N62, so variants with different package or tape options share the same die.