This part is a kind of semiconductor called 2SC5707.

Function of this product has Bipolar Transistor.

Manufacturers : ON Semiconductor

Image and pinout :

Some of the text within the PDF file :

Ordering number : EN6913B 2SA2040/2SC5707 Bipolar Transistor (-)50V, (-)8A, Low VCE(sat), (PNP)NPN Single TP/TP-FA http://onsemi.com Applications • DC / DC converter, relay drivers, lamp drivers, motor drivers, flash Features • Adoption of FBET and MBIT processes • Low collector-to-emitter saturation voltage Specifications ( ): 2SA2040 Absolute Maximum Ratings at Ta=25°C Parameter Collector-to-Base Voltage Collector-to-Emitter Voltage Collector-to-Emitter Voltage Emitter-to-Base Voltage Collector Current Collector Current (Pulse) Symbol VCBO VCES VCEO VEBO IC ICP Package Dimensions unit : mm (typ) 7518-003 • Large current capacitance • High-speed switching • High allowable power dissipation Conditions Ratings (--50)100 (--50)100 (--)50 (--)6 (--)8 (--)11 Unit V [ ... ]

2SC5707 PDF Datasheet Download