This part is a kind of semiconductor called 2SC3307.

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 2SC3307 DESCRIPTION ·With TO-3PL package ·Excellent switching times : tr=1.0µs(Max .),tf=1.0µs(Max .)(IC=5A) ·High collector breakdown voltage : VCEO=800V APPLICATIONS ·High speed,high voltage switching applications ·Switching regulator applications ·High speed DC-DC converter applications PINNING PIN 1 2 3 Base Collector;connected to mounting base Emitter Fig.1 simplified outline (TO-3PL) and symbol DESCRIPTION Absolute maximum ratings(Ta=25 ) SYMBOL VCBO VCEO VEBO IC ICM IB PC Tj Tstg PARAMETER Collector-base voltage Collector-emitter voltage Emitter-base voltage Collector current Collector current-peak Base current Collector power dissipation Junction temperature Storage temperatu [ ... ]

2SC3307 PDF Datasheet Download