This part is a kind of semiconductor called BC847B.
Function of this product has NPN General Purpose Transistor.
Manufacturers : Rohm
Image and pinout :

Some of the text within the PDF file :
Transistors BC847B NPN General Purpose Transistor BC847B zFeatures 1) BVCEO < 45V (IC=1mA) 2) Complements the BC857B. zPackage, marking, and Packaging specifications Part No. Packaging type Marking Code Basic ordering unit (pieces) BC847B SST3 G1F T116 3000 zExternal dimensions (Unit : mm) 2.9±0.2 1.9±0.2 0.95 0.95 0.95 +0.2 −0.1 0.45±0.1 (1) (2) (3) 1.3 +0.2 −0.1 2.4±0.2 0~0.1 0.2Min. 0.4 +0.1 −0.05 0.15 +0.1 −0.06 All terminals have the same dimensions ROHM : SST3 (1) Emitter (2) Base (3) Collector zAbsolute maximum ratings (Ta=25°C) Parameter Collector-base voltage Collector-emitter voltage Emitter-base voltage Collector current Symbol VCBO VCEO VEBO IC Collector power dissipation PC Junction temperature Tj Storage temperature Tstg ∗ When [ ... ]
BC847B PDF Datasheet Download
