This part is a kind of semiconductor called 2SK3402.

Function of this product has SWITCHING N-CHANNEL POWER MOSFET.

Manufacturers : NEC

Image and pinout :

Some of the text within the PDF file :

DATA SHEET MOS FIELD EFFECT TRANSISTOR 2SK3402 SWITCHING N-CHANNEL POWER MOS FET DESCRIPTION The 2SK3402 is N-Channel MOS Field Effect Transistor designed for high current switching applications. ★ ORDERING INFORMATION PART NUMBER 2SK3402 2SK3402-Z PACKAGE TO-251 (MP-3) TO-252 (MP-3Z) FEATURES • Low On-State Resistance RDS(on)1 = 15 mΩ MAX. (VGS = 10 V, ID = 18 A) RDS(on)2 = 22 mΩ MAX. (VGS = 4.0 V, ID = 18 A) • Low Ciss : Ciss = 3200 pF TYP. • Built-in Gate Protection Diode • TO-251/TO-252 package (TO-251) ABSOLUTE MAXIMUM RATINGS (TA = 25°C) Drain to Source Voltage (VGS = 0 V) Gate to Source Voltage (VDS = 0 V) Drain Current (DC) (TC = 25°C) Drain Current (pulse) Note1 VDSS VGSS ID(DC) ID(pulse) PT1 PT2 Tch Tstg 60 ±20 ±36 ±144 40 1.0 150 –55 to +150 35 123 [ ... ]

2SK3402 PDF Datasheet Download