These are standard TO-92 NPN C945 transistors for general purpose use.  

Note:

With the flat face of transistor toward you with pins down, the pin-out is as follows from left to right: Emitter, Base, Collector. 

Specifications:

Type : NPN

Model : C945

Package type : TO-92

VCBO: 60V

VCEO: 50V

IC: 0.1A

PC: 250mW

Black Body Size: 4.5mm x 3mm x 4.5mm

Pin Diameter: 0.4mm

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