This part is a kind of semiconductor called 9N80.

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 9N80 ·DESCRIPTION ·Drain Current ID= 9A@ TC=25℃ ·Drain Source Voltage- : VDSS= 800V(Min) ·Fast Switching Speed ·APPLICATIONS ·General purpose power amplifier ·ABSOLUTE MAXIMUM RATINGS(TC=25℃) SYMBOL PARAMETER VALUE UNIT VDSS Drain-Source Voltage (VGS=0) VGS Gate-Source Voltage ID Drain Current-continuous@ TC=25℃ 800 ±20 9 V V A ID(puls) Pulse Drain Current 36 A Ptot Total Dissipation@TC=25℃ 240 W Tj Max. Operating Junction Temperature 150 ℃ Tstg Storage Temperature Range -55~150 ℃ ·THERMAL CHARACTERISTICS SYMBOL PARAMETER Rth j-c Thermal Resistance, Junction to Case MAX UNIT 0.7 ℃/W isc website：www.iscsemi.cn 1 isc & iscsemi is registered trademark PDF pdf [ ... ]

9N80 PDF Datasheet Download