This part is a kind of semiconductor called C1573.

Function of this product has 2SC1573.

Manufacturers : Panasonic Semiconductor

Image and pinout :

Some of the text within the PDF file :

Transistor 2SC1573, 2SC1573A, 2SC1573B Silicon NPN triple diffusion planer type For high breakdown voltage general amplification For small TV video output Complementary to 2SC1573 and 2SA879 s Features q High collector to emitter voltage VCEO. q High transition frequency fT. s Absolute Maximum Ratings (Ta=25˚C) Parameter Symbol Ratings Collector to base voltage 2SC1573 2SC1573A 2SC1573B VCBO 250 300 400 2SC1573 Collector to 2SC1573A emitter voltage 2SC1573B VCEO 200 300 400 Emitter to base voltage Peak collector current Collector current Collector power dissipation Junction temperature Storage temperature VEBO ICP IC PC Tj Tstg 7 100 70 1 150 –55 ~ +150 s Electrical Characteristics (Ta=25˚C) Unit V V V mA mA W ˚C ˚C 5.9±0.2 Unit: mm 4.9±0.2 8.6±0.2 +0.3 0.7–0 [ ... ]

C1573 PDF Datasheet Download