This part is a kind of semiconductor called 2SA649.

Function of this product has Silicon POwer Transistors.

Manufacturers : SavantIC

Image and pinout :

Some of the text within the PDF file :

SavantIC Semiconductor Product Specification Silicon PNP Power Transistors 2SA649 DESCRIPTION ·With TO-3 package ·Wide area of safe operation APPLICATIONS ·For low frequency and large power switching applications PINNING(see Fig.2) PIN 1 2 3 Base Emitter Fig.1 simplified outline (TO-3) and symbol Collector DESCRIPTION Absolute maximum ratings(Ta= ) SYMBOL VCBO VCEO VEBO IC ICM PC Tj Tstg PARAMETER Collector-base voltage Collector-emitter voltage Emitter-base voltage Collector current Collector current-peak Collector power dissipation Junction temperature Storage temperature TC=25 Open emitter Open base Open collector CONDITIONS VALUE -150 -150 -6 -7 -11 80 150 -55~150 UNIT V V V A A W SavantIC Semiconductor Product Specification Silicon PN [ ... ]

2SA649 PDF Datasheet Download