This part is a kind of semiconductor called 2SC5342SF.

Function of this product has NPN Silicon Transistor (Medium power amplifier).

Manufacturers : AUK corp

Image and pinout :

Some of the text within the PDF file :

Semiconductor 2SC5342SF NPN Silicon Transistor Description • Medium power amplifier Features • Large collector current : IC=500mA • Low collector saturation voltage enabling low-voltage operation • Complementary pair with 2SA1979SF Ordering Information Type NO. 2SC5342SF Marking BA : hFE rank Package Code SOT-23F Outline Dimensions unit : mm 2.3~2.5 1.5~1.7 1 1.90 BSC 2.8~3.0 3 2 0.35~0.45 0.1~0.2 0.8~1.0 PIN Connections 1. Base 2. Emitter 3. Collector 0~0.1 KST-2064-001 1 2SC5342SF Absolute maximum ratings Characteristic Collector-Base voltage Collector-Emitter voltage Emitter-Base voltage Collector current Collector dissipation Junction temperature Storage temperature (Ta=25°C) Symbol VCBO VCEO VEBO IC PC Tj Tstg Ratings 40 32 5 500 200 150 -55~150 Unit V V V m [ ... ]

2SC5342SF PDF Datasheet Download