This part is a kind of semiconductor called BC846A.

Function of this product has NPN General Purpose Amplifier.

Manufacturers : Fairchild Semiconductor

Image and pinout :

Some of the text within the PDF file :

BC846 / BC847 / BC848 / BC850 NPN Epitaxial Silicon Transistor August 2015 BC846 / BC847 / BC848 / BC850 NPN Epitaxial Silicon Transistor Features • Switching and Amplifier Applications • Suitable for Automatic Insertion in Thick and Thin-film Circuits • Low Noise: BC850 • Complement to BC856, BC857, BC858, BC859, and BC860 3 2 SOT-23 1 1. Base 2. Emitter 3. Collector Ordering Information(1) Part Number BC846AMTF BC846BMTF BC846CMTF BC847AMTF BC847BMTF BC847CMTF BC848BMTF BC848CMTF BC850AMTF BC850CMTF Marking 8AA 8AB 8AC 8BA 8BB 8BC 8CB 8CC 8EA 8EC Package SOT-23 3L SOT-23 3L SOT-23 3L SOT-23 3L SOT-23 3L SOT-23 3L SOT-23 3L SOT-23 3L SOT-23 3L SOT-23 3L Packing Method Tape and Reel Tape and Reel Tape and Reel Tape and Reel Tape and Reel Tape and Reel Tape and Reel Tape [ ... ]

BC846A PDF Datasheet Download