This part is a kind of semiconductor called K3342.

Function of this product has 2SK3342.

Manufacturers : Toshiba Semiconductor

Image and pinout :

Some of the text within the PDF file :

www.net 2SK3342 TOSHIBA Field Effect Transistor Silicon N Channel MOS Type (π−MOSV) 2SK3342 Switching Regulator Applications DC−DC Converter, and Motor Drive Applications l Low drain−source ON resistance l High forward transfer admittance l Low leakage current l Enhancement−mode : RDS (ON) = 0.8 Ω (typ.) : |Yfs| = 4.5 S (typ.) Unit: mm : IDSS = 100 µA (max) (VDS = 250 V) : Vth = 1.5~3.5 V (VDS = 10 V, ID = 1 mA) Maximum Ratings (Ta = 25°C) Characteristics Drain−source voltage Drain−gate voltage (RGS = 20 kΩ) Gate−source voltage Drain current DC (Note 1) Symbol VDSS VDGR VGSS ID IDP PD EAS IAR EAR Tch Tstg Rating 250 250 ±20 4.5 18 20 51 4.5 2.0 150 −55~150 Unit V V V A A W mJ A mJ °C °C Pulse (Note 1) Drain power dissipation (Tc = 25°C) Single p [ ... ]

K3342 PDF Datasheet Download