This part is a kind of semiconductor called D1455.

Function of this product has 2SD1455.

Manufacturers : SavantIC

Image and pinout :

Some of the text within the PDF file :

SavantIC Semiconductor Silicon NPN Power Transistors Product Specification 2SD1455 DESCRIPTION www.dat·aWshiethet4TuO.co-3mPN package ·High voltage,high speed ·Built-in damper diode APPLICATIONS ·For TV horizontal deflection output applications PINNING PIN 1 2 3 DESCRIPTION Base Collector;connected to mounting base Emitter Fig.1 simplified outline (TO-3PN) and symbol Absolute maximum ratings (Ta=25 ) SYMBOL PARAMETER VCBO Collector-base voltage VEBO IC PC Tj Emitter-base voltage Collector current (DC) Collector power dissipation Junction temperature Tstg Storage temperature CONDITIONS Open emitter Open collector TC=25 VALUE 1500 6 5 50 150 -45~150 UNIT V V A W SavantIC Semiconductor Silicon NPN Power Transistors Product Specification 2SD1455 CHARACTERISTICS Tj=25 u [ ... ]

D1455 PDF Datasheet Download