This part is a kind of semiconductor called BDT82F.
Function of this product has (BDT82F - BDT88F) Silicon PNP Power Transistors.
Manufacturers : Inchange Semiconductor
Image and pinout :

Some of the text within the PDF file :
INCHANGE Semiconductor isc Product Specification isc Silicon PNP Power Transistors DESCRIPTION ·DC Current Gain -hFE = 40(Min)@ IC= -5A ·Collector-Emitter Sustaining Voltage: VCEO(SUS) = -60V(Min)- BDT82F; -80V(Min)- BDT84F; -100V(Min)- BDT86F; -120V(Min)- BDT88F ·Complement to Type BDT81F/83F/85F/87F APPLICATIONS ·Designed for use in audio output stages and general amplifer and switching applications ABSOLUTE MAXIMUM RATINGS(Ta=25℃) SYMBOL PARAMETER BDT82F BDT84F VCBO Collector-Base Voltage BDT86F BDT88F BDT82F BDT84F VCEO Collector-Emitter Voltage BDT86F BDT88F VEBO IC ICM IB B BDT82F/84F/86F/88F VALUE -60 -80 UNIT V -100 -120 -60 -80 V -100 -120 -7 -15 -20 -4 36 150 -65~150 V A A A W ℃ ℃ Emitter-Base Voltage Collector Current-Continuous Collector Cur [ ... ]
BDT82F PDF Datasheet Download
