This part is a kind of semiconductor called 2SB1218A.

Function of this product has Silicon PNP epitaxial planer type.

Manufacturers : Panasonic Semiconductor

Image and pinout :

Some of the text within the PDF file :

Transistor 2SB1218A Silicon PNP epitaxial planer type For general amplification Complementary to 2SD1819A 2.1±0.1 Unit: mm s Features q q 0.425 1.25±0.1 0.425 High foward current transfer ratio hFE. S-Mini type package, allowing downsizing of the equipment and automatic insertion through the tape packing and the magazine packing. 0.65 1 2.0±0.2 1.3±0.1 0.65 3 2 0.2 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) 0.9±0.1 –45 –45 –7 –200 –100 150 150 –55 ~ +150 V V V mA mA mW ˚C ˚C 0.7±0.1 Ratings Unit 0 to 0.1 0.2±0.1 1: [ ... ]

2SB1218A PDF Datasheet Download