This part is a kind of semiconductor called 50N06.
Function of this product has N-CHANNEL MOSFET.
Manufacturers : CHONGQING PINGYANG
Image and pinout :

Some of the text within the PDF file :
50N06(F,B,H) 50A mps,60 Volts N-CHANNEL MOSFET FEATURE 50A,60V,RDS(ON)=16mΩ@VGS=10V/25A Low gate charge Low Ciss Fast switching 100% avalanche tested Improved dv/dt capability TO-220AB 50N06 ITO-220AB 50N06F TO-263 50N06B TO-262 50N06H Absolute Maximum Ratings(TC=25℃,unless otherwise noted) Parameter Symbol Drain-Source Voltage Gate-Source Voltage Continuous Drain Current Pulsed Drain Current(Note1) Single Pulse Avalanche Energy (Note 2) Avalanche Current(Note1) Repetitive Avalanche Energy (Note1) Reverse Diode dV/dt (Note 3) Operating Junction and Storage Temperature Range Maximum lead temperature for soldering purposes, 1/8"from case for 5 seconds VDSS VGSS ID IDM EAS IAR EAR dv/dt TJ,TSTG TL Mounting Torque 6-32 or M3 screw 50N06 60 ±20 52.4 21 [ ... ]
50N06 PDF Datasheet Download
