akdown voltage V(BR)CBO 50 IC = 10 µA, IB = 0 Collector cutoff current ICBO 100 nA mA 1.61 60 mV 0.3 V 0.6 1.5 2.2 6.2 1.1 kΩ - VCB = 40 V, IE = 0 Emitter cutoff current IEBO hFE VCEsat Vi(off) .