This part is a kind of semiconductor called 2SC5343.

Function of this product has Silicon Epitaxial Planar Transistor.

Manufacturers : Galaxy Semi-Conductor

Image and pinout :

Some of the text within the PDF file :

BL Galaxy Electrical Silicon Epitaxial Planar Transistor FEATURES z Excellent hFE linearity :hFE(2)=100(Typ) at VCE=6V,IC=150Ma :hFE(IC=0.1mA)/hFE(IC=2mA)=0.95(Typ). z z Low noise:NF=1Db(Typ).at f=1KHz. Complementary pair with 2SA1980S. Production specification 2SC5343 Pb Lead-free APPLICATIONS z General small signal amplifier. SOT-23 ORDERING INFORMATION Type No. 2SC5343 Marking 5343 Package Code SOT-23 MAXIMUM RATING @ Ta=25℃ unless otherwise specified Symbol VCBO VCEO VEBO IC IB B Parameter Collector-Base Voltage Collector-Emitter Voltage Emitter-Base Voltage Collector Current -Continuous Base Current-Continuous Collector Dissipation Junction and Storage Temperature Value 60 50 5 150 50 200 -55~150 Units V V V mA mA mW ℃ PC Tj,Tstg ELECTRICAL CHARACTERISTICS @ Ta=25℃ un [ ... ]

2SC5343 PDF Datasheet Download