This part is a kind of semiconductor called 2SK1520.

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 ESCRIPTION ·Drain Current –ID=30A@ TC=25℃ ·Drain Source Voltage- : VDSS=500 (Min) isc Product Specification 2SK1520 APPLICATIONS ·Designed for high voltage, high speed power switching applications such as switching regulators, converters, solenoid and relay drivers. ABSOLUTE MAXIMUM RATINGS(Ta=25℃) SYMBOL ARAMETER VDSS Drain-Source Voltage (VGS=0) VGS Gate-Source Voltage ID Drain Current-continuous@ TC=25℃ Ptot Total Dissipation@TC=25℃ Tj Max. Operating Junction Temperature Tstg Storage Temperature Range VALUE UNI T 500 V ±30 V 30 A 200 W 150 ℃ -55~150 ℃ THERMAL CHARACTERISTICS SYMBOL PARAMETER MAX UNIT Rth j-c Rth j-a Thermal Resistance,Junction to Case 1.0 ℃/W Thermal Resistance,Junction t [ ... ]

2SK1520 PDF Datasheet Download