This part is a kind of semiconductor called 2SC5342M.

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 2SC5342M NPN Silicon Transistor Description • Medium power amplifier Features • Large collector current : IC=500mA • Low collector saturation voltage enabling low-voltage operation • Complementary pair with 2SA1979M Ordering Information Type NO. 2SC5342M Marking 5342 Package Code TO-92M Outline Dimensions 3.9~4.1 2.9~3.1 unit : mm 0.44 REF 0.52 REF 14.0±0.40 1.27 Typ. 2.44~2.64 1 2 3 13.6~14.4 0.7 Typ. 2.9~3.1 3.8 Min. 0.42 Typ. PIN Connections 1. Emitter 2. Collector 3. Base KST-I004-001 1 2SC5342M 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 [ ... ]

2SC5342M PDF Datasheet Download