This part is a kind of semiconductor called 2SK2146.

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 DESCRIPTION ·Drain Current –ID= 2A@ TC=25℃ ·Drain Source Voltage- : VDSS= 250V(Min) ·Fast Switching Speed APPLICATIONS ·Switching regulators ,DC-DC converter,Motor Control isc Product Specification 2SK2146 ABSOLUTE MAXIMUM RATINGS(Ta=25℃) SYMBOL ARAMETER VALUE UNIT VDSS Drain-Source Voltage (VGS=0) VGS Gate-Source Voltage ID Drain Current-continuous@ TC=25℃ 250 ±30 2 V V A ID(puls) Pulsed Drain Current 5A Ptot Total Dissipation@TC=25℃ 25 W Tj Max. Operating Junction Temperature 150 ℃ Tstg Storage Temperature Range -55~150 ℃ ·THERMAL CHARACTERISTICS SYMBOL PARAMETER MAX UNIT Rth j-c Rth j-a Thermal Resistance, Junction to Case Thermal Resistance, Junction to Ambient 5.0 ℃/W 62.5 ℃/W isc w [ ... ]

2SK2146 PDF Datasheet Download