This part is a kind of semiconductor called 2SA1170.

Function of this product has POWER TRANSISTOR.

Manufacturers : Inchange Semiconductor

Image and pinout :

Some of the text within the PDF file :

www.net Inchange 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 B 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 ℃ ℃ PC Tj Tstg Inchange Semiconductor P [ ... ]

2SA1170 PDF Datasheet Download