SYMBOL Collector Base Voltage VCBO Collector Emitter Voltage VCEO Collector Emitter Voltage (RBE= 100Ω) VCER Emitter Base Voltage Collector Current (Peak) Collector Current Continuous VEBO ICM IC Base Current IB Power Dissipation upto Tc=25ºC PD Derating factor above 25ºC Power Dissip.