This part is a kind of semiconductor called A1265N.

Function of this product has 2SA1265N.

Manufacturers : Inchange Semiconductor Company

Image and pinout :

Some of the text within the PDF file :

Inchange Semiconductor Product Specification Silicon PNP Power Transistors 2SA1265N DESCRIPTION ·With TO-3P(I) package ·Complement to type 2SC3182 ·2SA1265 with short pin APPLICATIONS ·Power amplifier applications PINNING PIN 1 2 3 DESCRIPTION Emitter Collector;connected to mounting base Base Fig.1 simplified outline (TO-3P(I)) and symbol Absolute maximum ratings(Ta=25℃) SYMBOL VCBO VCEO PARAMETER Collector-base voltage Collector-emitter voltage Emitter-base voltage Collector current Base current Total power dissipation Junction temperature Storage temperature TC=25℃ Open emitter Open base Open collector CONDITIONS VALUE -140 -140 -5 -10 -1 100 150 -55~150 UNIT V V V A A W ℃ ℃ VEBO IC IB B PT Tj Tstg Inchange Semiconductor Product Specification [ ... ]

A1265N PDF Datasheet Download