This part is a kind of semiconductor called A1008.

Function of this product has 2SA1008.

Manufacturers : SavantIC

Image and pinout :

Some of the text within the PDF file :

SavantIC Semiconductor Product Specification Silicon PNP Power Transistors DESCRIPTION ·With TO-220 package ·Complement to type 2SC2331 ·Low collector saturation voltage ·Fast switching speed APPLICATIONS ·Switching regulators ·DC/DC converters ·High frequency power amplifiers PINNING PIN 1 2 3 DESCRIPTION Emitter Collector;connected to mounting base Base 2SA1008 Fig.1 simplified outline (TO-220) and symbol Absolute maximum ratings(Ta=25 ) SYMBOL VCBO VCEO VEBO IC ICM IB PARAMETER Collector-base voltage Collector-emitter voltage Emitter-base voltage Collector current Collector current-Peak Base current Ta=25 PT Total power dissipation TC=25 Tj Tstg Junction temperature Storage temperature 15 150 -55~150 CONDITIONS Open emitter Open base Open collector VALUE [ ... ]

A1008 PDF Datasheet Download