¡¤ With TO-3PN package ¡¤ High DC current gain ¡¤ Low saturation voltage APPLICATIONS ¡¤ For audio frequency power amplifier www.DataSheet4U.com and low speed high current switching industrial use PINNING PIN 1 2 3 Base Collector;connected to mounting base Emitter Fig.1 simplified outline (TO-3PN) a.