Collector Base Voltage ( Open Emitter) Collector Emitter Voltage (Open Base) Emitter Base Voltage Collector Current Base Current Total Power Dissipation up toTc=25ºC Junction Temperature Storage Temperature THERMAL RESISTANCE Junction to Case Rth(j-c) 1.75 ºC/W SYMBOL VCBO VCEO VEBO IC IB Ptot Tj Ts.