This part is a kind of semiconductor called 2SD1632.

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 2SD1632 DESCRIPTION ·With TO-3PFa package ·High voltage ,high speed ·Built-in damper diode ·Wide area of safe operation APPLICATIONS ·For horizontal deflection output applications PINNING PIN 1 2 3 Base Collector Emitter DESCRIPTION Absolute maximum ratings(Ta=25 ) SYMBOL VCBO VEBO IC ICM IBM PC Tj Tstg PARAMETER Collector-base voltage Emitter-base voltage Collector current Collector current-peak Base current Collector power dissipation Junction temperature Storage temperature TC=25 CONDITIONS Open emitter Open collector VALUE 1500 5 4 15 3.5 70 130 -55~130 UNIT V V A A A W SavantIC Semiconductor Product Specification Silicon NPN Power Transistors 2SD1632 CHARACTERISTICS www.datas [ ... ]

2SD1632 PDF Datasheet Download