This part is a kind of semiconductor called C4217.

Function of this product has 2SC4217.

Manufacturers : Sanyo

Image and pinout :

Some of the text within the PDF file :

Ordering number:EN2968 NPN Triple Diffused Planar Silicon Transistor 2SC4217 Color TV Chroma Output and Audio Output Applications Features · High breakdown voltage (VCEO≥300V). · Micaless package facilitating easy mounting. Package Dimensions unit:mm 2042A [2SC4217] Specifications Absolute Maximum Ratings at Ta = 25˚C Parameter Collector-to-Base Voltage Collector-to-Emitter Voltage Emitter-to-Base Voltage Collector Current Collector Current (Pulse) Collector Dissipation Junction Temperature Storage Temperature Symbol VCBO VCEO VEBO IC ICP PC Tj Tstg Ta=25˚C Tc=25˚C B : Base C : Collector E : Emitter SANYO : TO-126ML Conditions Ratings 300 300 6 200 400 1.5 10 150 –55 to +150 Unit V V V mA mA W W ˚C ˚C Electrical Characteristics at Ta = 25˚C Parameter Collector Cutoff C [ ... ]

C4217 PDF Datasheet Download