This part is a kind of semiconductor called K2865.
Function of this product has 2SK2865.
Manufacturers : Toshiba
Image and pinout :

Some of the text within the PDF file :
2SK2865 TOSHIBA Field Effect Transistor Silicon N-Channel MOS Type (π−MOSV) 2SK2865 Chopper Regulator, DC/DC Converter and Motor Drive Applications • Low drain−source ON-resistance : RDS (ON) = 4.2 Ω (typ.) • High forward transfer admittance : |Yfs| = 1.7 S (typ.) • Low leakage current : IDSS = 100 μA (max) (VDS = 600 V) • Enhancement mode : Vth = 2.0 to 4.0 V (VDS = 10 V, ID = 1 mA) Absolute Maximum Ratings (Ta = 25°C) Characteristic Symbol Rating Unit 6.5 ± 0.2 5.2 ± 0.2 Unit: mm 0.6 MAX. 1.5 ± 0.2 5.5 ± 0.2 9.5 ± 0.3 1.2 MAX. 0.8 MAX. 0.6 ± 0.15 1 1.05 MAX. 23 1.1 ± 0.2 0.6 MAX. 2.3 ± 0.2 0.1 ± 0.1 Drain−source voltage Drain−gate voltage (RGS = 20 kΩ) Gate−source voltage DC (Note 1) Drain current Pulse (t = 1 ms) (Note 1) Pu [ ... ]
K2865 PDF Datasheet Download
