This part is a kind of semiconductor called 2NK90Z.

Function of this product has STP2NK90Z.

Manufacturers : STMicroelectronics

Image and pinout :

Some of the text within the PDF file :

STP2NK90Z - STD2NK90Z STD2NK90Z-1 N-CHANNEL 900V - 5Ω - 2.1A TO-220/DPAK/IPAK Zener-Protected SuperMESH™MOSFET Table 1: General Features TYPE STD2NK90Z STD2NK90Z-1 STP2NK90Z s s s s s s s Figure 1: Package ID 2.1 A 2.1 A 2.1 A Pw 70 W 70 W 70 W 3 1 VDSS 900 V 900 V 900 V RDS(on) < 6.5 Ω < 6.5 Ω < 6.5 Ω TYPICAL RDS(on) = 5 Ω EXTREMELY HIGH dv/dt CAPABILITY IMPROVED ESD CAPABILITY 100% AVALANCHE RATED GATE CHARGE MINIMIZED VERY LOW INTRINSIC CAPACITANCES VERY GOOD MANUFACTURING REPEATIBILITY TO-220 DPAK 3 2 1 DESCRIPTION The SuperMESH™ series is obtained through an extreme optimization of ST’s well established stripbased PowerMESH™ layout. In addition to pushing on-resistance significantly down, special care is taken to ensure a very good dv/dt capability for the mo [ ... ]

2NK90Z PDF Datasheet Download