This part is a kind of semiconductor called 2SK1703.

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 2SK1703 DESCRIPTION ·Drain Current –ID= 5A@ TC=25℃ ·Drain Source Voltage- : VDSS=500V(Min) APPLICATIONS ·High speed power switching. ·Low drive current. ·Suitable for motor control, switching regulator and DC – DC converter. ABSOLUTE MAXIMUM RATINGS(Ta=25℃) SYMBOL ARAMETER VALUE UNIT VDSS VGS ID Ptot Tj Tstg Drain-Source Voltage (VGS=0) Gate-Source Voltage 500 ±30 V V Drain Current-continuous@ TC=25℃ 5 A Total Dissipation@TC=25℃ 75 W Max. Operating Junction Temperature 150 ℃ Storage Temperature Range -55~150 ℃ isc website：www.iscsemi.cn 1 isc & iscsemi is registered trademark PDF pdfFactory Pro www.fineprint.cn INCHANGE Semiconductor isc N-Channel Mosfet Transistor [ ... ]

2SK1703 PDF Datasheet Download