This part is a kind of semiconductor called C4533.

Function of this product has 2SC4533.

Manufacturers : Panasonic Semiconductor

Image and pinout :

Some of the text within the PDF file :

Power Transistors 2SC4533 Silicon NPN triple diffusion planar type For high breakdown voltage high-speed switching 0.7±0.1 10.0±0.2 5.5±0.2 2.7±0.2 4.2±0.2 Unit: mm 4.2±0.2 s Features q q q q q High-speed switching High collector to base voltage VCBO Wide area of safe operation (ASO) Satisfactory linearity of foward current transfer ratio hFE Full-pack package which can be installed to the heat sink with one screw (TC=25˚C) Ratings 500 500 400 7 6 3 1.2 30 2 150 –55 to +150 Unit V V V V A A A W ˚C ˚C 7.5±0.2 16.7±0.3 φ3.1±0.1 4.0 1.4±0.1 1.3±0.2 14.0±0.5 Solder Dip s Absolute Maximum Ratings Parameter Collector to base voltage Collector to emitter voltage Emitter to base voltage Peak collector current Collector current Base current Collector power TC=25°C di [ ... ]

C4533 PDF Datasheet Download