This part is a kind of semiconductor called 2SK2798.

Function of this product has VX-2 Series Power MOSFET(350V 6A).

Manufacturers : Shindengen Electric Mfg.Co.Ltd

Image and pinout :

Some of the text within the PDF file :

SHINDENGEN VX-2 Series Power MOSFET N-Channel Enhancement type 2SK2798 (F6F35VX2) 350V 6A FEATURES •œ Input capacitance (Ciss) is small. Especially, input capacitance at 0 biass is small. •œ The static Rds(on) is small. •œ The switching time is fast. APPLICATION •œ Switching power supply of AC 100V input OUTLINE DIMENSIONS Case : E-pack Case : FTO-220 (Unit : mm) •œ High voltage power supply •œ Inverter RATINGS •œAbsolute Maximum Ratings • Tc i = 25•Ž•j Item Symbol Conditions Storage Temperature Tstg Channel Temperature Tch Drain-Source Voltage VDSS Gate-Source Voltage VGSS Continuous Drain Current• DC•j i ID Continuous Drain Current• Peak) i IDP Continuous Source Current• DC•j i IS PT Total Power Dissipation Single Pulse Avalanche Current IAS Tc [ ... ]

2SK2798 PDF Datasheet Download