This part is a kind of semiconductor called 2SD2293.

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 2SD2293 DESCRIPTION ·With TO-3PN package ·High voltage ·Built-in damper diode APPLICATIONS ·For color TV horizontal deflection output applications PINNING PIN 1 2 3 Base Collector;connected to mounting base Emitter Fig.1 simplified outline (TO-3PN) and symbol DESCRIPTION Absolute maximum ratings (Ta=25 ) 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 1500 700 6 3 50 150 -55-150 UNIT V V V A W SavantIC Semiconductor Product Specification Silicon NPN Power Transistors 2SD [ ... ]

2SD2293 PDF Datasheet Download