This part is a kind of semiconductor called 2SC5198.

Function of this product has SILICON POWER TRANSISTOR.

Manufacturers : SavantIC

Image and pinout :

Some of the text within the PDF file :

SavantIC Semiconductor Product Specification Silicon NPN Power Transistors 2SC5198 DESCRIPTION ·With TO-3P(I) package ·Complement to type 2SA1941 APPLICATIONS ·Power amplifier applications ·Recommend for 70W high fidelity audio frequency amplifier output stage PINNING PIN 1 2 3 Base Collector;connected to mounting base Emitter Fig.1 simplified outline (TO-3P(I)) and symbol DESCRIPTION Absolute maximum ratings(Ta=25 ) SYMBOL VCBO VCEO VEBO IC IB PC Tj Tstg PARAMETER Collector-base voltage Collector-emitter voltage Emitter-base voltage Collector current Base current Collector power dissipation Junction temperature Storage temperature TC=25 CONDITIONS Open emitter Open base Open collector VALUE 140 140 5 10 1 100 150 -55~150 UNIT V V V A A W [ ... ]

2SC5198 PDF Datasheet Download