This part is a kind of semiconductor called C3280.

Function of this product has 2SC3280.

Manufacturers : SavantIC

Image and pinout :

Some of the text within the PDF file :

SavantIC Semiconductor Product Specification Silicon NPN Power Transistors 2SC3280 DESCRIPTION ·With TO-3PL package ·Complement to type 2SA1301 APPLICATIONS ·Power amplifier applications ·Recommended for 80W high fidelity audio frequency amplifier output stage PINNING PIN 1 2 3 Base Collector;connected to mounting base Emitter DESCRIPTION Fig.1 simplified outline (TO-3PL) and symbol 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 power dissipation Junction temperature Storage temperature TC=25 CONDITIONS Open emitter Open base Open collector VALUE 160 160 5 12 1.2 120 150 -55~150 UNIT V V V A A W Free Datasheet http: [ ... ]

C3280 PDF Datasheet Download