This part is a kind of semiconductor called BDX88C.
Function of this product has Silicon PNP Darlington Power Transistor.
Manufacturers : Inchange Semiconductor
Image and pinout :

Some of the text within the PDF file :
INCHANGE Semiconductor isc Silicon PNP Darlington Power Transistor isc Product Specification BDX88/A/B/C DESCRIPTION ·High DC Current Gain- : hFE= 750(Min)@ IC= -6A ·Collector-Emitter Sustaining Voltage- : VCEO(SUS) = -45V(Min)- BDX88; -60V(Min)- BDX88A -80V(Min)- BDX88B; -100V(Min)- BDX88C ·Complement to Type BDX87/A/B/C APPLICATIONS ·Designed for use in power linear and switching applications. ABSOLUTE MAXIMUM RATINGS(Ta=25℃) SYMBOL PARAMETER VALUE BDX88 -45 UNIT VCBO Collector-Base Voltage BDX88A BDX88B -60 -80 V BDX88C -100 BDX88 -45 VCEO BDX88A Collector-Emitter Voltage BDX88B -60 -80 V BDX88C -100 VEBO Emitter-Base Voltage -5 V IC Collector Current-Continuous -12 A ICM Collector Current-Peak -18 A IB Base Current PC Collector Power Dissipation @ [ ... ]
BDX88C PDF Datasheet Download
