This part is a kind of semiconductor called 2SD2114.

Function of this product has NPN Plastic-Encapsulate Transistor.

Manufacturers : SeCoS

Image and pinout :

Some of the text within the PDF file :

Elektronische Bauelemente 2SD2114 0.5A , 25V NPN Plastic-Encapsulate Transistor RoHS Compliant Product A suffix of “-C” specifies halogen & lead-free FEATURE  High DC Current Gain.  High Emitter-Base Voltage. VEBO=12V (Min.) CLASSIFICATION OF hFE Product-Rank 2SD2114-V Range 820~1800 Marking BBV SOT-23 A L 3 Top View CB 12 KE 1 3 2 D F GH J PACKAGE INFORMATION Package MPQ SOT-23 3K Leader Size 7 inch REF. A B C D E F Millimeter Min. Max. 2.80 3.04 2.10 2.55 1.20 1.40 0.89 1.15 1.78 2.04 0.30 0.50 REF. G H J K L Millimeter Min. Max. 0.09 0.18 0.45 0.60 0.08 0.177 0.6 REF. 0.89 1.02 Collector  ABSOLUTE MAXIMUM RATINGS (TA = 25°C unless otherwise specified) Parameter Symbol Ratings Collector to Base Voltage Collector to Emitte [ ... ]

2SD2114 PDF Datasheet Download