This part is a kind of semiconductor called 2SC4793.

Function of this product has Silicon NPN Triple Diffused Transistor.

Manufacturers : JILIN SINO

Image and pinout :

Some of the text within the PDF file :

NPN Silicon NPN Triple Diffused Transistor R 2SC4793 VCEO=230V (min) 2SA1837 fT=100MHz(Typ.) RoHS Package APPLICATIONS Power Amplifier Applications FEATURES High collector voltage VCEO=230V (min) Complementary to 2SA1937 High transition frequency :fT=100MHz(Typ.) RoHS product TO-220MF 不ORDER MESSAGE不 Order codes 2SC4793-O-MF-N-B Marking 2SC4793 Halogen Free Package NO TO-220MF Packaging Tube ABSOLUTE RATINGS (Tc=25℃ unless otherwise noted) Parameter Collector- Emitter Voltage Collector- Emitter Voltage IB=0 Emitter-Base Voltage Collector Current DC Base Current Collector Dissipation(Ta=25 ) Collector Dissipation(Tc=25 ) Junction Temperature Storage Temperature THERMAL CHARACTERISTIC Symbol VCBO VCEO VEBO IC IB PC Tj Tstg Value 230 230 5 1 0.1 2.0 20 150 -55~+15 [ ... ]

2SC4793 PDF Datasheet Download