This part is a kind of semiconductor called 2SC3423.

Function of this product has SILICON POWER TRANSISTOR.

Manufacturers : SavantIC

Image and pinout :

Some of the text within the PDF file :

SavantIC Semiconductor Product Specification Silicon NPN Power Transistors 2SC3423 DESCRIPTION ·With TO-126 package ·Complement to type 2SA1360 ·High transition frequency APPLICATIONS ·Audio frequency amplifier applications PINNING PIN 1 2 3 Emitter Collector;connected to mounting base Base DESCRIPTION Absolute maximum ratings(Ta=25 ) SYMBOL VCBO VCEO VEBO IC IB PARAMETER Collector-base voltage Collector-emitter voltage Emitter-base voltage Collector current Base current Ta=25 PD Total power dissipation TC=25 Tj Tstg Junction temperature Storage temperature 5 150 -55 +150 CONDITIONS Open emitter Open base Open collector VALUE 150 150 5 50 5 1.2 W UNIT V V V mA mA SavantIC Semiconductor Product Specification Silicon NPN Power Transistors C [ ... ]

2SC3423 PDF Datasheet Download