This part is a kind of semiconductor called 2SA1106.

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 PNP Power Transistors 2SA1106 DESCRIPTION ·With TO-3PN package ·High frequency ·High power dissipation APPLICATIONS ·Audio power amplifer applications ·DC-DC converters 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= ) 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 -200 -140 -6 -10 100 150 -55~150 UNIT V V V A W SavantIC Semiconductor Product Specification Silicon PNP [ ... ]

2SA1106 PDF Datasheet Download