This part is a kind of semiconductor called C2750.
Function of this product has Silicon NPN Power Transistor.
Manufacturers : INCHANGE
Image and pinout :

Some of the text within the PDF file :
INCHANGE Semiconductor isc Silicon NPN Power Transistor isc Product Specification 2SC2750 DESCRIPTION ·Collector-Emitter Sustaining Voltage- : VCEO(SUS)= 100V(Min) ·High Current Capability ·High Power Dissipation APPLICATIONS ·Designed for high speed, high current switching industrial applications. ABSOLUTE MAXIMUM RATINGS(Ta=25℃) SYMBOL PARAMETER VALUE UNIT VCBO Collector-Base Voltage 150 V VCEO Collector-Emitter Voltage 100 V VEBO Emitter-Base Voltage 7V IC Collector Current-Continuous 15 A ICM Collector Current-Peak 30 A IB Base Current-Continuous PC Collector Power Dissipation @ TC=25℃ TJ Junction Temperature Tstg Storage Temperature Range 5A 100 W 150 ℃ -55~150 ℃ isc website:www.iscsemi.cn 1 INCHANGE Semiconductor isc Silicon NPN Power Tr [ ... ]
C2750 PDF Datasheet Download
