This part is a kind of semiconductor called 2N4347.
Function of this product has High Power Industrial Transistors.
Manufacturers : Comset Semiconductor
Image and pinout :

Some of the text within the PDF file :
NPN 2N3442 – 2N4347 HIGH POWER INDUSTRIAL TRANSISTORS NPN silicon transistors in Jedec TO-39 metal case. They are designed for applictions in industrial and commercial equipment including high fidelity audio amplifiers, series and shunts regulators and power switches. Low Collector-Emitter Saturation Voltage. Compliance to RoHS. ABSOLUTE MAXIMUM RATINGS Symbol VCEO VCB VEB Collector-Emitter Voltage Collector-Base Voltage Emitter-Base Voltage Continuous IC Collector Current Peak Continuous IB Base Current Peak Total Device Dissipation Junction Temperature Storage Temperature @ TC = 25° Derate above 25° www.DataSheet.net/ Ratings 2N4347 2N3442 2N4347 2N3442 2N4347 2N3442 2N4347 2N3442 2N4347 2N3442 2N4347 2N3442 2N4347 2N3442 2N4347 2N3442 2N4347 2N3442 2N4347 2N3442 2N4347 2N3442 Val [ ... ]
2N4347 PDF Datasheet Download
