This part is a kind of semiconductor called 2SA1668.
Function of this product has (2SA1667 / 2SA1668) SILICON POWER TRANSISTOR.
Manufacturers : SavantIC
Image and pinout :
Some of the text within the PDF file :
SavantIC Semiconductor Product Specification Silicon PNP Power Transistors 2SA1667 2SA1668 DESCRIPTION ·With TO-220F package ·Complement to type 2SC4381/4382 APPLICATIONS ·For TV vertical output ,audio output driver and general purpose applications PINNING PIN 1 2 3 Base Collector Emitter Fig.1 simplified outline (TO-220F) and symbol DESCRIPTION Absolute maximum ratings (Ta=25 ) SYMBOL PARAMETER 2SA1667 VCBO Collector-base voltage 2SA1668 2SA1667 VCEO Collector-emitter voltage 2SA1668 VEBO IC IB PC Tj Tstg Emitter-base voltage Collector current Base current Collector dissipation Junction temperature Storage temperature TC=25 Open collector Open base -200 -6 -2 -1 25 150 -55~150 V A A W Open emitter -200 -150 V CONDITIONS VALUE -150 V UNIT SavantIC Semiconductor [ ... ]