This part is a kind of semiconductor called 2N5427.

Function of this product has (2N5427 / 2N5429) Silicon NPN Power Transistors.

Manufacturers : SavantIC

Image and pinout :

Some of the text within the PDF file :

SavantIC Semiconductor Product Specification Silicon NPN Power Transistors DESCRIPTION ·With TO-66 package ·Excellent safe operating area ·Low collector saturation voltage APPLICATIONS ·For switching and wide-band amplifier applications. PINNING(see Fig.2) PIN 1 2 3 Base Emitter Collector DESCRIPTION 2N5427 2N5429 Fig.1 simplified outline (TO-66) and symbol Absolute maximum ratings(Ta= ) SYMBOL PARAMETER 2N5427 VCBO Collector-base voltage 2N5429 2N5427 VCEO Collector-emitter voltage 2N5429 VEBO IC IB PD Tj Tstg Emitter-base voltage Collector current Base current Total power dissipation Junction temperature Storage temperature TC=25 Open collector Open base 100 6 7 1 40 200 -65~200 V A A W Open emitter 100 80 V CONDITIONS VALUE 80 V UNIT THERMAL CHARACTERISTICS [ ... ]

2N5427 PDF Datasheet Download