This part is a kind of semiconductor called 2SA1276.

Function of this product has POWER TRANSISTOR.

Manufacturers : Inchange Semiconductor

Image and pinout :

Some of the text within the PDF file :

Inchange Semiconductor Product Specification Silicon PNP Power Transistors 2SA1276 DESCRIPTION ·With TO-220 package ·Complement to type 2SC3230 ·Good linearity of hFE APPLICATIONS ·General purpose applications 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 VCBO VCEO VEBO IC IE PC Tj Tstg PARAMETER Collector-base voltage Collector-emitter voltage Emitter-base voltage Collector current Emitter current Collector power dissipation Junction temperature Storage temperature TC=25℃ Open emitter Open base Open collector CONDITIONS VALUE -30 -30 -5 -3 3 10 150 -55~150 UNIT V V V A A W ℃ ℃ Inchange Semiconductor Product Specification Silicon PN [ ... ]

2SA1276 PDF Datasheet Download