This part is a kind of semiconductor called C5171.

Function of this product has 2SC5171.

Manufacturers : Toshiba Semiconductor

Image and pinout :

Some of the text within the PDF file :

2SC5171 TOSHIBA Transistor Silicon NPN Epitaxial Type 2SC5171 Power Amplifier Applications Driver Stage Amplifier Applications Unit: mm • • High transition frequency: fT = 200 MHz (typ.) Complementary to 2SA1930 Absolute 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 Ta = 25°C Tc = 25°C Symbol VCBO VCEO VEBO IC IB PC Tj Tstg Rating 180 180 5 2 1 2.0 20 150 −55 to 150 Unit V V V A A W °C °C JEDEC JEITA TOSHIBA ― ― 2-10R1A Note: Using continuously under heavy loads (e.g. the application of high Weight: 1.7 g (typ.) temperature/current/voltage and the significant change in temperature, etc.) may cause [ ... ]

C5171 PDF Datasheet Download