2n4921 2n4922 2n4923.pdf datasheet:

Product Specification www.jmnic.com Silicon NPN Power Transistors 2N4921 2N4922 2N4923 DESCRIPTION With TO-126 package Complement to type 2N4918,2N4919 2N4920 Excellent safe operating area Low collector-emitter saturation voltage APPLICATIONS For driver circuits ,switching ,and amplifier applications PINNING PIN DESCRIPTION1 Emitter Collector;connected to 2 mounting base 3 BaseAbsolute maximum ratings(Ta=25) SYMBOL PARAMETER CONDITIONS VALUE UNIT2N4921 40VCBO Collector-base voltage 2N4922 Open emitter 60 V 2N4923 80 2N4921 40VCEO Collector-emitter voltage 2N4922 Open base 60 V 2N4923 80 VEBO Emitter-base voltage Open collector 5 V IC Collector current 1 A ICM Collector current-Peak 3 AIB Base current 1 APD Total power dissipation TC=25 30 WTj Junction temperature 150 Tstg Storage temperature -65~150