This part is a kind of semiconductor called BDT87F.
Function of this product has (BDT81F - BDT87F) Silicon NPN Power Transistors.
Manufacturers : Inchange Semiconductor
Image and pinout :

Some of the text within the PDF file :
INCHANGE Semiconductor isc Product Specification isc Silicon NPN Power Transistors DESCRIPTION ·DC Current Gain -hFE = 40(Min)@ IC= 5A ·Collector-Emitter Sustaining Voltage: VCEO(SUS) = 60V(Min)- BDT81F; 80V(Min)- BDT83F; 100V(Min)- BDT85F; 120V(Min)- BDT87F ·Complement to Type BDT82F/84F/86F/88F APPLICATIONS ·Designed for use in audio output stages and general amplifer and switching applications ABSOLUTE MAXIMUM RATINGS(Ta=25℃) SYMBOL PARAMETER BDT81F BDT83F VCBO Collector-Base Voltage BDT85F BDT87F BDT81F BDT83F VCEO Collector-Emitter Voltage BDT85F BDT87F VEBO IC ICM IB B BDT81F/83F/85F/87F 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 Current-Peak Base Cu [ ... ]
BDT87F PDF Datasheet Download
