This part is a kind of semiconductor called 2SK3479.

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 2SK3479 SWITCHING N-CHANNEL POWER MOS FET DESCRIPTION The 2SK3479 is N-channel MOS Field Effect Transistor designed for high current switching applications. ORDERING INFORMATION PART NUMBER 2SK3479 2SK3479-S 2SK3479-ZJ 2SK3479-Z PACKAGE TO-220AB TO-262 TO-263 TO-220SMDNote FEATURES • Super low on-state resistance: RDS(on)1 = 11 mΩ MAX. (VGS = 10 V, ID = 42 A) RDS(on)2 = 13 mΩ MAX. (VGS = 4.5 V, ID = 42 A) • Low Ciss: Ciss = 11000 pF TYP. • Built-in gate protection diode Note TO-220SMD package is produced only in Japan. (TO-220AB) 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 [ ... ]

2SK3479 PDF Datasheet Download