This part is a kind of semiconductor called C4953.

Function of this product has 2SC4953.

Manufacturers : Panasonic

Image and pinout :

Some of the text within the PDF file :

Power Transistors 2SC4953 Silicon NPN triple diffusion planar type For high breakdown voltage high-speed switching Unit: mm s Features q High-speed switching q High collector to base voltage VCBO q Wide area of safe operation (ASO) q Satisfactory linearity of foward current transfer ratio hFE q Dielectric breakdown voltage of the package: > 5kV s Absolute Maximum Ratings (TC=25˚C) Parameter Symbol Ratings Collector to base voltage Collector to emitter voltage Emitter to base voltage Peak collector current Collector current Base current Collector power TC=25°C dissipation Ta=25°C Junction temperature Storage temperature VCBO VCES VCEO VEBO ICP IC IB PC Tj Tstg 500 500 400 7 6 3 1.2 30 2.0 150 –55 to +150 Unit V V V V A A A W ˚C ˚C 13.7±0.2 4.2±0.2 15.0±0.5 9 [ ... ]

C4953 PDF Datasheet Download