This part is a kind of semiconductor called A985.

Function of this product has 2SA985.

Manufacturers : SavantIC

Image and pinout :

Some of the text within the PDF file :

SavantIC Semiconductor Product Specification Silicon PNP Power Transistors 2SA985 2SA985A DESCRIPTION ·With TO-220 package ·Complement to type 2SC2275/2275A ·High breakdown voltage APPLICATIONS ·For low frequency and high frequency power amplifer applicatons PINNING PIN 1 2 3 DESCRIPTION Emitter Collector;connected to mounting base Base Fig.1 simplified outline (TO-220) and symbol Absolute maximum ratings(Ta=25 ) SYMBOL PARAMETER 2SA985 VCBO Collector-base voltage 2SA985A 2SA985 VCEO Collector-emitter voltage 2SA985A VEBO IC ICM IB Emitter-base voltage Collector current Collector current-peak Base current Ta=25 PT Total power dissipation TC=25 Tj Tstg Junction temperature Storage temperature 25 150 -55~150 Open collector Open base -150 -5 -1.5 -3.0 -0.3 1.5 W V [ ... ]

A985 PDF Datasheet Download