This part is a kind of semiconductor called 2SK1358.

Function of this product has N-Channel MOSFET Transistor.

Manufacturers : Inchange Semiconductor

Image and pinout :

Some of the text within the PDF file :

INCHANGE Semiconductor isc N-Channel MOSFET Transistor isc Product Specification 2SK1358 DESCRIPTION ·Drain Current –ID= 9A@ TC=25℃ ·Drain Source Voltage- : VDSS= 900V(Min) ·Fast Switching Speed APPLICATIONS ·Designed for high voltage, high speed power switching ABSOLUTE MAXIMUM RATINGS(Ta=25℃) SYMBOL ARAMETER VALUE UNIT VDSS VGS ID Ptot Tj Tstg Drain-Source Voltage (VGS=0) Gate-Source Voltage 900 ±30 Drain Current-continuous@ TC=25℃ 9 Total Dissipation@TC=25℃ 150 Max. Operating Junction Temperature 150 Storage Temperature Range -55~150 V V A W ℃ ℃ THERMAL CHARACTERISTICS SYMBOL PARAMETER MAX UNIT Rth j-c Rth j-a Thermal Resistance,Junction to Case 0.833 ℃/W Thermal Resistance,Junction to Ambient 50 ℃/W isc website：www.iscsemi.cn 1 isc & [ ... ]

2SK1358 PDF Datasheet Download