View stp7nc80z datasheet:

STP7NC80Z - STP7NC80ZFP STB7NC80Z - STB7NC80Z-1 N-CHANNEL 800V - 1.3? - 6.5A TO-220/FP/D2PAK/I2PAK Zener-Protected PowerMESH™III MOSFET TYPE VDSS RDS(on) ID STP7NC80Z 800 V < 1.5 ? 6.5 A STP7NC80ZFP 800 V < 1.5 ? 6.5 A STB7NC80Z 800 V < 1.5 ? 6.5 A 3 1 STB7NC80Z-1 800 V < 1.5 ? 6.5 A 3 2 D2PAK 1 TYPICAL RDS(on) = 1.3? TO-220 TO-220FP EXTREMELY HIGH dv/dt AND CAPABILITY GATE TO - SOURCE ZENER DIODES 100% AVALANCHE TESTED VERY LOW GATE INPUT RESISTANCE 3 2 GATE CHARGE MINIMIZED 1 I2PAK (Tabless TO-220) DESCRIPTION The third generation of MESH OVERLAY™ Power MOSFETs for very high voltage exhibits unsur- passed on-resistance per unit area while integrating INTERNAL SCHEMATIC DIAGRAM back-to-back Zener diodes between gate and source. Such arrangement gives e