This part is a kind of semiconductor called D2125.

Function of this product has 2SD2125.

Manufacturers : SavantIC

Image and pinout :

Some of the text within the PDF file :

www.DataSheet.co.kr SavantIC Semiconductor Product Specification Silicon NPN Power Transistors 2SD2125 DESCRIPTION ·With TO-3P(H)IS package ·Built-in damper diode ·High voltage ,high speed ·Low saturation voltage APPLICATIONS ·Horizontal output applications for color TV ·Medium resolution display PINNING PIN 1 2 3 DESCRIPTION Base Collector Emitter Fig.1 simplified outline (TO-3P(H)IS) and symbol Absolute maximum ratings (Ta=25 ) SYMBOL VCBO VCEO VEBO IC ICM IB PC Tj Tstg PARAMETER Collector-base voltage Collector-emitter voltage Emitter-base voltage Collector current Collector current-peak Base current Collector power dissipation Junction temperature Storage temperature TC=25 CONDITIONS Open emitter Open base Open collector VALUE 1500 600 5 6 10 3 50 150 - [ ... ]

D2125 PDF Datasheet Download