This part is a kind of semiconductor called P10NK80Z.
Function of this product has STP10NK80Z.
Manufacturers : ST Microelectronics
Image and pinout :

Some of the text within the PDF file :
( DataSheet : ) STP10NK80ZFP STP10NK80Z - STW10NK80Z N-CHANNEL 800V - 0.78Ω - 9A - TO-220/FP-TO-247 Zener-Protected SuperMESH™ MOSFET General features Type VDSS RDS(on) ID 9A 9A 9A Pw 160 W 160 W 40 W STW10NK80Z 800 V <0.90 Ω STP10NK80Z 800 V <0.90 Ω STP10NK80ZFP 800 V <0.90 Ω s s s s s Package 3 1 2 1 3 2 TO-220 TO-220FP EXTREMELY HIGH dv/dt CAPABILITY 100% AVALANCHE TESTED GATE CHARGE MINIMIZED VERY LOW INTRINSIC CAPACITANCES VERY GOOD MANUFACTURING REPEABILITY 3 2 1 TO-247 Internal schematic diagram Description The SuperMESH™ series is obtained through an extreme optimization of ST’s well established strip-based PowerMESH™ layout. In addition to pushing on-resistance significantly down, special care is taken to ensure a [ ... ]
P10NK80Z PDF Datasheet Download
