This part is a kind of semiconductor called 2SC5707.

Function of this product has Silicon NPN Power Transistor.

Manufacturers : Inchange Semiconductor

Image and pinout :

Some of the text within the PDF file :

isc Silicon NPN Power Transistor INCHANGE Semiconductor 2SC5707 DESCRIPTION ·Large current capacitance ·High-speed switching ·100% avalanche tested ·Low collector-to-emitter saturation voltage ·Minimum Lot-to-Lot variations for robust device performance and reliable operation ·Complementary to 2SA2040 APPLICATIONS ·DC/DC converter,relay drivers,lamp drivers,motor drivers ABSOLUTE MAXIMUM RATINGS(Ta=25℃) SYMBOL PARAMETER VALUE UNIT VCBO Collector-Base Voltage 80 V VCEO Collector-Emitter Voltage 50 V VEBO Emitter-Base Voltage 6V IC Collector Current-Continuous 8 A ICM Collector Current-Peak Collector Power Dissipation PC @ TC=25℃ Collector Power Dissipation @Ta=25℃ TJ Junction Temperature 11 A 15 W 1.0 150 ℃ Tstg Storage Temperature Range -55~150 �� [ ... ]

2SC5707 PDF Datasheet Download