This part is a kind of semiconductor called 2SK2140.
Function of this product has N-CHANNEL POWER MOS FET.
Manufacturers : NEC
Image and pinout :

Some of the text within the PDF file :
DATA SHEET MOS FIELD EFFECT TRANSISTOR 2SK2140, 2SK2140-Z SWITCHING N-CHANNEL POWER MOS FET INDUSTRIAL USE DESCRIPTION The 2SK2140, 2SK2140-Z is N-channel Power MOS Field Effect Transistor designed for high voltage switching applications. FEATURES • Low On-state Resistance RDS(on) = 1.5 Ω MAX. (VGS = 10 V, ID = 3.5 A) • Low Ciss Ciss = 930 pF TYP. • High Avalanche Capability Ratings ABSOLUTE MAXIMUM RATINGS (TA = 25 ˚C) Drain to Source Voltage VDSS 600 V Gate to Source Voltage VGSS ±30 V Drain Current (DC) ID(DC) ±7.0 A Drain Current (pulse)* ID(pulse) ±28 A Total Power Dissipation (Tc = 25 ˚C) PT1 75 W Total Power Dissipation (TA = 25 ˚C) PT2 1.5 W Storage Temperature Tstg –55 to +150 ˚C Channel Temperature Tch 150 ˚C Single Avalanche Current** [ ... ]
2SK2140 PDF Datasheet Download
