This part is a kind of semiconductor called 2SC3852A.

Function of this product has Silicon NPN Epitaxial Planar Transistor(Driver for Solenoid and Motor/ Series Regulator and General Purpose).

Manufacturers : Sanken electric

Image and pinout :

Some of the text within the PDF file :

High hFE LOW VCE (sat) Silicon NPN Epitaxial Planar Transistor sAbsolute maximum ratings (Ta=25°C) Symbol 2SC3852 2SC3852A VCBO VCEO VEBO IC IB PC Tj Tstg 80 60 6 3 1 25(Tc=25°C) 150 –55 to +150 100 80 Unit V V V A A W °C °C IEBO V(BR)CEO hFE VCE(sat) fT COB 2SC3852/3852A Application : Driver for Solenoid and Motor, Series Regulator and General Purpose (Ta=25°C) 2SC3852 2SC3852A Unit sElectrical Characteristics Symbol ICBO VCB= VEB=6V IC=25mA VCE=4V, IC=0.5A IC=2A, IB=50mA VCE=12V, IE=–0.2A VCB=10V, f=1MHz 80 100max 60min 500min 0.5max 15typ 50typ Conditions External Dimensions FM20(TO220F) 4.0±0.2 10.1±0.2 4.2±0.2 2.8 c0.5 10max 100 80min µA µA V V MHz pF 2.54 2.2±0.2 16.9±0.3 V 8.4±0.2 13.0min 1.35±0.15 1.35±0.15 0.85 +0.2 -0.1 0.45 +0.2 -0.1 2.54 2.4±0.2 sT [ ... ]

2SC3852A PDF Datasheet Download