This part is a kind of semiconductor called C2668.

Function of this product has 2SC2668.

Manufacturers : Toshiba

Image and pinout :

Some of the text within the PDF file :

2SC2668 TOSHIBA Transistor Silicon NPN Epitaxial Planar Type (PCT process) 2SC2668 High Frequency Amplifier Applications FM, RF, IF Amplifier Applications Unit: mm · Small reverse transfer capacitance: Cre = 0.70 pF (typ.) · Low noise figure: NF = 2.5dB (typ.) Maximum Ratings (Ta = 25°C) Characteristics Collector-base voltage Collector-emitter voltage Emitter-base voltage Collector current Emitter current Collector power dissipation Junction temperature range Storage temperature range Symbol VCBO VCEO VEBO IC IB PC Tj Tstg Rating 40 30 4 20 4 100 125 -55~125 Unit V V V mA mA mW °C °C Electrical Characteristics (Ta = 25°C) JEDEC ― JEITA ― TOSHIBA 2-4E1A Weight: 0.13 g (typ.) Characteristics Symbol Test Condition Collector cut-off current Emitter cut-off current [ ... ]

C2668 PDF Datasheet Download