This part is a kind of semiconductor called C5198.

Function of this product has 2SC5198.

Manufacturers : Toshiba Semiconductor

Image and pinout :

Some of the text within the PDF file :

TOSHIBA Transistor Silicon NPN Triple Diffused Type 2SC5198 Power Amplifier Applications 2SC5198 Unit: mm • High breakdown voltage: VCEO = 140 V (min) • Complementary to 2SA1941 • Suitable for use in 70-W high fidelity audio amplifier’s output stage Absolute Maximum Ratings (Ta = 25°C) Characteristics Symbol Rating Unit Collector-base voltage VCBO 140 V Collector-emitter voltage VCEO 140 V Emitter-base voltage VEBO 5 V Collector current IC 10 A Base current IB 1 A Collector power dissipation (Tc = 25°C) Junction temperature Storage temperature range PC 100 W Tj 150 °C Tstg −55 to 150 °C JEDEC JEITA TOSHIBA ― ― 2-16C1A Note: Using continuously under heavy loads (e.g. the application of high temperature/current/voltage and the significant change in [ ... ]

C5198 PDF Datasheet Download