This part is a kind of semiconductor called K3596-01L.
Function of this product has 2SK3596-01L.
Manufacturers : Fuji Electric
Image and pinout :

Some of the text within the PDF file :
2SK3596-01L,S,SJ FUJI POWER MOSFET N-CHANNEL SILICON POWER MOSFET Outline Drawings (mm) Super FAP-G Series Features High speed switching Low on-resistance No secondary breadown Low driving power Avalanche-proof Applications Switching regulators UPS (Uninterruptible Power Supply) DC-DC converters P4 Maximum ratings and characteristicAbsolute maximum ratings (Tc=25°C unless otherwise specified) Item Drain-source voltage Continuous drain current Pulsed drain current Gate-source voltage Non-repetitive Avalanche current Maximum Avalanche Energy Maximum Drain-Source dV/dt Peak Diode Recovery dV/dt Max. power dissipation Operating and storage temperature range Symbol V DS VDSX *5 ID ID(puls] VGS IAS *2 EAS *1 dVDS/dt *4 dV/dt *3 PD Ta=25°C Tc=25°C Ratings 200 170 ±30 [ ... ]
K3596-01L PDF Datasheet Download
