This part is a kind of semiconductor called K2648.

Function of this product has 2SK2648-01.

Manufacturers : Fuji Electric

Image and pinout :

Some of the text within the PDF file :

2SK2648-01 FAP-IIS Series > Features High Speed Switching Low On-Resistance No Secondary Breakdown Low Driving Power High Voltage VGS = ± 30V Guarantee Repetitive Avalanche Rated N-channel MOS-FET 800V 1,5Ω 9A 150W > Outline Drawing > Applications - Switching Regulators - UPS - DC-DC converters - General Purpose Power Amplifier > Maximum Ratings and Characteristics - Absolute Maximum Ratings T( C=25°C), unless otherwise specified > Equivalent Circuit Rating 800 9 36 ±30 9 241 150 150 -55 ~ +150 Unit V A A V A mJ W °C °C Item Drain-Source-Voltage Continous Drain Current Pulsed Drain Current Gate-Source-Voltage Repetitive or Non-Repetitive (Tch ≤ 150°C) Avalanche Energy Max. Power Dissipation Operating and Storage Temperature Range Symbol V DS ID I D(p [ ... ]

K2648 PDF Datasheet Download