This part is a kind of semiconductor called B1351.

Function of this product has 2SB1351.

Manufacturers : Sanken Electric

Image and pinout :

Some of the text within the PDF file :

(2 k Ω)(1 0 0 Ω) E Darlington sAbsolute maximum ratings (Ta=25°C) Symbol VCBO VCEO VEBO IC IB PC Tj Tstg 2SB1351 –60 –60 –6 –12(Pulse–20) –1 30(Tc=25°C) 150 –55 to +150 Unit V V V A A W °C °C 2SB1351 sElectrical Characteristics Symbol ICBO IEBO V(BR)CEO hFE VCE(sat) VBE(sat) fT COB Condition VCB=–60V VEB=–6V IC=–10mA VCE=–4V, IC=–10A IC=–10A, IB=–20mA IC=–10A, IB=–20mA VCE=–12V, IE=1A VCB=–10V, f=1MHz 2SB1351 –10max –10max –60min 2000min –1.5max –2.0max 130typ 170typ V V MHz pF 13.0min B Equivalent circuit C Silicon PNP Epitaxial Planar Transistor Application : Driver for Printer Head, Solenoid, Relay, Motor and General Purpose (Ta=25°C) Unit External Dimensions FM20(TO220F) 4.0±0.2 10.1±0.2 4.2±0.2 2.8 c0. [ ... ]

B1351 PDF Datasheet Download