This part is a kind of semiconductor called 2SD1302.

Function of this product has Silicon NPN epitaxial planer type(For low-voltage output amplification).

Manufacturers : Panasonic Semiconductor

Image and pinout :

Some of the text within the PDF file :

Transistor 2SD1302 Silicon NPN epitaxial planer type For low-voltage output amplification For muting For DC-DC converter Unit: mm 5.0±0.2 4.0±0.2 s Features q q q s Absolute Maximum Ratings Parameter Collector to base voltage Collector to emitter voltage Emitter to base voltage Peak collector current Collector current Collector power dissipation Junction temperature Storage temperature Symbol VCBO VCEO VEBO ICP IC PC Tj Tstg (Ta=25˚C) Ratings 25 20 12 1 0.5 600 150 –55 ~ +150 Unit V V 2.3±0.2 0.45 –0.1 1.27 +0.2 13.5±0.5 Low collector to emitter saturation voltage VCE(sat). Low ON resistance Ron. High foward current transfer ratio hFE. 5.1±0.2 0.45 –0.1 1.27 +0.2 V A A mW ˚C ˚C 1 2 3 2.54±0.15 1:Emitter 2:Collector 3:Base JEDEC:TO–92 EIAJ:SC–43A s Electrical [ ... ]

2SD1302 PDF Datasheet Download