This part is a kind of semiconductor called C5147.

Function of this product has 2SC5147.

Manufacturers : Rohm

Image and pinout :

Some of the text within the PDF file :

Transistors Medium Power Transistor (Chroma Output) (300V, 0.1A) 2SC5147 2SC5147 !Features 1) High breakdown voltage. (BVCEO = 300V) 2) Low collector output capacitance. (Typ.3pF at VCB = 30V) 3) Wide SOA. (safe operating area) 4) Ideal for color TV chroma output and amplification of video signals. !Absolute maximum ratings (Ta=25°C) Parameter Collector-base voltage Collector-emitter voltage Emitter-base voltage Collector current Collector power dissipation Junction temperature Storage temperature Symbol VCBO VCEO VEBO IC PC Tj Tstg Limits 300 300 5 100 2 10 150 −55~+150 Unit V V V mA (DC) W W (Tc = 25°C) °C °C !External dimensions (Units : mm) 10.0 φ 3.2 4.5 2.8 15.0 12.0 8.0 14.0 5.0 1.2 1.3 0.8 2.54 2.54 (1) (2) (3) (1) (2) (3) ROHM : TO-220FN 0.75 2.6 (1) Ba [ ... ]

C5147 PDF Datasheet Download