2sc4299.pdf datasheet:

JMnic Product SpecificationSilicon NPN Power Transistors 2SC4299 DESCRIPTION With TO-3PML package High voltage ,high switching speed Wide area of safe operation APPLICATIONS For switching regulator and general purpose applications PINNING PIN DESCRIPTION1 Base 2 CollectorFig.1 simplified outline (TO-3PML) and symbol 3 EmitterAbsolute maximum ratings(Ta=25) SYMBOL PARAMETER CONDITIONS VALUE UNITVCBO Collector-base voltage Open emitter 900 V VCEO Collector-emitter voltage Open base 800 V VEBO Emitter-base voltage Open collector 7 V IC Collector current 3 A ICM Collector current-peak 6 A IB Base current 1.5 A PC Collector power dissipation TC=25 70 WTj Junction temperature 150 Tstg Storage temperature -55~150 JMnic Product SpecificationSilicon NPN Power Transistors 2SC4299 CHARACTERISTICS Tj=25 unless oth