This part is a kind of semiconductor called 2SA1170.

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 2SA1170 DESCRIPTION ·With MT-200 package ·High power dissipation ·Complement to type 2SC2774 APPLICATIONS ·Audio and general purpose applications PINNING (see Fig.2) PIN 1 2 3 Base Collector;connected to mounting base Emitter Fig.1 simplified outline (MT-200) and symbol DESCRIPTION Absolute maximum ratings(Ta=25 ) SYMBOL VCBO VCEO VEBO IC IB PC Tj Tstg PARAMETER Collector-base voltage Collector-emitter voltage Emitter-base voltage Collector current Base current Collector power dissipation Junction temperature Storage temperature TC=25 CONDITIONS Open emitter Open base Open collector VALUE -200 -200 -6 -17 -5 200 150 -55~150 UNIT V V V A A W SavantIC Semiconductor Pr [ ... ]

2SA1170 PDF Datasheet Download