This part is a kind of semiconductor called 2SC4963.

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 2SC4963 DESCRIPTION ·With TO-3PFM package ·High breakdown voltage ·High speed switching ·Built-in damper diode APPLICATIONS ·Color TV horizontal deflection output ·Color display horizontal deflection output PINNING PIN 1 2 3 Base Collector Emitter Fig.1 simplified outline (TO-3PFM) and symbol DESCRIPTION Absolute maximum ratings(Ta= ) SYMBOL VCBO VCEO VEBO IC PC Tj Tstg PARAMETER Collector-base voltage Collector-emitter voltage Emitter-base voltage Collector current Collector power dissipation Junction temperature Storage temperature TC=25 CONDITIONS Open emitter Open base Open collector VALUE 1700 800 5 8 50 150 -55~150 UNIT V V V A W SavantIC Semiconductor Pro [ ... ]

2SC4963 PDF Datasheet Download