This part is a kind of semiconductor called 3N80.

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 3N80 ·FEATURES ·Drain Current ID=3.0A@ TC=25℃ ·Drain Source Voltage- : VDSS= 800V(Min) ·Static Drain-Source On-Resistance : RDS(on) = 4.5Ω(Max) ·Fast Switching ·APPLICATIONS ·Switching power supplies,converters,AC and DC motor controls ·ABSOLUTE MAXIMUM RATINGS(Ta=25℃) SYMBOL PARAMETER VALUE UNIT VDSS Drain-Source Voltage 800 V VGS Gate-Source Voltage-Continuous ±30 V ID Drain Current-Continuous 3A IDM Drain Current-Single Plused 12 A PD Total Dissipation @TC=25℃ 75 W Tj Max. Operating Junction Temperature 150 ℃ Tstg Storage Temperature -55~150 ℃ ·THERMAL CHARACTERISTICS SYMBOL PARAMETER Rth j-c Thermal Resistance, Junction to Case Rth j-a Thermal Resistance,Junc [ ... ]

3N80 PDF Datasheet Download