This part is a kind of semiconductor called K2350.
Function of this product has 2SK2350.
Manufacturers : Toshiba Semiconductor
Image and pinout :
Some of the text within the PDF file :
2SK2350 TOSHIBA Field Effect Transistor Silicon N Channel MOS Type (L −π−MOSV) 2 2SK2350 Switching Regulator, DC−DC Converter and Motor Drive Applications z 4-V gate drive z Low drain−source ON resistance z High forward transfer admittance z Low leakage current z Enhancement mode : RDS (ON) = 0.26 Ω (typ.) : |Yfs| = 8 S (typ.) Unit: mm : IDSS = 100 μA (max) (VDS = 200 V) : Vth = 1.5~3.5 V (VDS = 10 V, ID = 1 mA) Absolute 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 200 200 ±20 8.5 34 30 110 8.5 3 150 −55~150 Unit V V V A A W mJ A mJ °C °C Pulse (Note 1) JEDEC JEITA TOSHIBA ― SC-67 [ ... ]