lector-base breakdown voltage Collector-emitter saturation voltage Collector cut-off current Collector cut-off current Emitter cut-off current DC current gain DC current gain Output capacitance Transition frequency CONDITIONS IC=-2mA;IB=0 IC=-10µA ;IE=0 IC=-0.5A ;IB=-50mA VCB=-20V; IE=0 VCE=-20V; IB.