This part is a kind of semiconductor called C3112.

Function of this product has 2SC3112.

Manufacturers : Toshiba Semiconductor

Image and pinout :

Some of the text within the PDF file :

2SC3112 TOSHIBA Transistor Silicon NPN Epitaxial Type (PCT process) 2SC3112 For Audio Amplifier and Switching Applications • • • High DC current gain: hFE = 600~3600 High breakdown voltage: VCEO = 50 V High collector current: IC = 150 mA (max) Unit: mm Absolute Maximum Ratings (Ta = 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 50 50 5 150 30 400 125 −55~125 Unit V V V mA mA mW °C °C JEDEC TO-92 JEITA SC-43 Note: Using continuously under heavy loads (e.g. the application of high TOSHIBA 2-5F1B temperature/current/voltage and the significant change in temperature, etc.) may cause [ ... ]

C3112 PDF Datasheet Download