This part is a kind of semiconductor called 2N5877.

Function of this product has (2N5877 / 2N5878) Silicon NPN Power Transistor.

Manufacturers : SavantIC

Image and pinout :

Some of the text within the PDF file :

SavantIC Semiconductor Product Specification Silicon NPN Power Transistors DESCRIPTION ·With TO-3 package ·Low collector saturation voltage ·Complement to type 2N5875 2N5876 APPLICATIONS ·For general-purpose power amplifier and switching applications PINNING PIN 1 2 3 Base Emitter Collector DESCRIPTION 2N5877 2N5878 Fig.1 simplified outline (TO-3) and symbol Absolute maximum ratings(Ta= ) SYMBOL VCBO PARAMETER 2N5877 Collector-base voltage 2N5878 2N5877 VCEO VEBO IC ICM IB PD Tj Tstg Collector-emitter voltage 2N5878 Emitter-base voltage Collector current Collector current-peak Base current Total Power Dissipation Junction temperature Storage temperature TC=25 Open collector Open base 80 5 10 20 4 150 200 -65~200 V A A A W Open emitter 80 60 V CONDITIONS VALUE 6 [ ... ]

2N5877 PDF Datasheet Download