This part is a kind of semiconductor called 2SC4512.

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 2SC4512 ·Wit DESCRIPTION With TO-220C package ·Complement to type 2SA1726 APPLICATIONS ·Audio and General Purpose PINNING PIN 1 2 3 Base Collector;connected to mounting base Emitter DESCRIPTION Absolute maximum ratings(Ta=25 ) SYMBOL VCBO VCEO VEBO IC IB PC Tj Tstg PARAMETER Collector-base voltage Collector-emitter voltage Emitter-base voltage Collector current Base current Collector dissipation Junction temperature Storage temperature TC=25 CONDITIONS Open emitter Open base Open collector VALUE 120 80 6 6 3 50 150 -55~150 UNIT V V V A A W SavantIC Semiconductor Product Specification Silicon NPN Power Transistors 2SC4512 CHARACTERISTICS Tj=25 unless otherwise sp [ ... ]

2SC4512 PDF Datasheet Download