STP9N80K5, STW9N80K5 N-channel 800 V, 0.73 Ω typ.
STMicroelectronics
STP9N80K5 - N-channel Power MOSFET
STP9N80K5, STW9N80K5 N-channel 800 V, 0.73 Ω typ., 7 A MDmesh™ K5 Power MOSFETs in a TO-220 and TO-247 packages Datasheet - production data TAB 3 2.