Stmicroelectronics Stp9Nk90Z.

N CHANNEL MOSFET, 900V, 8A, TO-220; Transistor Polarity:N Channel; Drain Source Voltage Vds:900V; Continuous Drain Current Id:8A; On Resistance Rds(on):1.3ohm; Transistor Mounting:Through Hole; Rds(on) Test Voltage Vgs:10V; MSL:-