This part is a kind of semiconductor called C3964.

Function of this product has 2SC3964.

Manufacturers : Toshiba

Image and pinout :

Some of the text within the PDF file :

2SC3964 TOSHIBA Transistor Silicon NPN Epitaxial Type 2SC3964 Switching Applications Solenoid Drive Applications Temperature Compensated for Audio Amplifier Output Stage Industrial Applications Unit: mm • High DC current gain: hFE = 500 (min) (IC = 400 mA) • Low collector-emitter saturation voltage: VCE (sat) = 0.5 V (max) (IC = 300 mA) Maximum Ratings (Tc = 25°C) Characteristics Collector-base voltage Collector-emitter voltage Emitter-base voltage Collector current Base current Collector power dissipation Junction temperature Storage temperature range Symbol VCBO VCEO VEBO IC IB PC Tj Tstg Rating 40 40 7 2 0.5 1.5 150 −55 to 150 Unit V V V A A W °C °C JEDEC ― JEITA ― TOSHIBA 2-8H1A Weight: 0.82 g (typ.) Electrical Characteristics (Tc = 25°C) Characteristics [ ... ]

C3964 PDF Datasheet Download