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JMnic Silicon NPN Power Transistors 2SC4509 DESCRIPTION With TO-3PML package High voltage ,high speed switching Low collector saturation voltage APPLICATIONS Switching regulators DC-DC convertors Solid state relay General purpose power amplifiers PINNING PIN DESCRIPTION 1 Base 2 Collector Fig.1 simplified outline (TO-3PML) and symbol 3 Emitter Absolute maximum ratings(Tc=25 ) SYMBOL PARAMETER CONDITIONS VALUE UNIT VCBO Collector-base voltage Open emitter 500 V VCEO Collector-emitter voltage Open base 400 V VEBO Emitter-base voltage Open collector 10 V IC Collector current 10 A IB Base current 3 A PC Collector power dissipation TC=25 80 W Tj Junction temperature 150 Tstg Storage temperature -55 150 THERMAL CHARACTERISTICS SYMBOL PARAMETER MAX UNIT Rth j-C Thermal resistance junction case 1.56 /W JMnic P