This part is a kind of semiconductor called 2SC5198.

Function of this product has NPN TRIPLE DIFFUSED TYPE (POWER AMPLIFIER APPLICATIONS).

Manufacturers : Toshiba Semiconductor

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Some of the text within the PDF file :

2SC5198 TOSHIBA Transistor Silicon NPN Triple Diffused Type 2SC5198 Power Amplifier Applications 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 (Tc = 25°C) Characteristics Collector-base voltage Collector-emitter voltage Emitter-base voltage Collector current Base current Collector power dissipation (Tc = 25°C) Junction temperature Storage temperature range Symbol VCBO VCEO VEBO IC IB PC Tj Tstg Rating 140 140 5 10 1 100 150 −55 to 150 Unit V V V A A W °C °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 [ ... ]

2SC5198 PDF Datasheet Download