This part is a kind of semiconductor called K1723.

Function of this product has N-Channel MOSFET Transistor.

Manufacturers : INCHANGE

Image and pinout :

Some of the text within the PDF file :

INCHANGE Semiconductor isc N-Channel MOSFET Transistor isc Product Specification 2SK1723 DESCRIPTION ·Drain Current ID=12A@ TC=25℃ ·Drain Source Voltage : VDSS= 600V(Min) ·Fast Switching Speed APPLICATIONS ·Power supplies, converters and power motor controls ABSOLUTE MAXIMUM RATINGS(Ta=25℃) SYMBOL ARAMETER VALUE UNIT VDSS Drain-Source Voltage (VGS=0) 600 V VGS Gate-Source Voltage ±30 V ID Drain Current-continuous@ TC=25℃ 12 A Ptot Total Dissipation@TC=25℃ 150 W Tj Max. Operating Junction Temperature 150 ℃ Tstg 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 ·ELECTRICAL CHARACTERISTICS (TC=25℃) isc Prod [ ... ]

K1723 PDF Datasheet Download