This part is a kind of semiconductor called B1412.

Function of this product has 2SB1412.

Manufacturers : Rohm

Image and pinout :

Some of the text within the PDF file :

Low frequency transistor (−20V,−5A) 2SB1412 zFeatures 1) Low VCE(sat). VCE(sat) = −0.35V (Typ.) (IC/IB = −4A / −0.1A) 2) Excellent DC current gain characteristics. 3) Complements the 2SD2118. zStructure Epitaxial planar type PNP silicon transistor zDimensions (Unit : mm) 2SB1412 ROHM : CPT3 EIAJ : SC-63 ∗ Denotes hFE (1) Base (2) Collector (3) Emitter zAbsolute maximum ratings (Ta=25°C) Parameter Symbol Limits Collector-base voltage VCBO −30 Collector-emitter voltage VCEO −20 Emitter-base voltage VEBO −6 Collector current −5 IC −10 Collector power dissipation 2SB1412 PC 1 10 Junction temperature Tj 150 Storage temperature Tstg −55 to 150 ∗1 Single pulse, Pw=10ms Unit V V V A(DC) A(Pulse) ∗1 W W(Tc=25°C) °C °C zElectrical char [ ... ]

B1412 PDF Datasheet Download