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NPN. V BE > 0*. T. F. V CE > V BE **. V CE > V BE. T. F. T. F. Saturation. R Active. F. Active. Cutoff. * When V BE = 0 and V CE 0 the device is considered to be in cutoff ** When V BE > 0 and V CE = V BE the device is at the onset of saturation. PNP. V EB > 0*. T. F.
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NPN VBE > 0* T F VCE > VBE** VCE> VBE T F T F Saturation R Active F. Active Cutoff * When VBE = 0 and VCE 0 the device is considered to be in cutoff ** When VBE > 0 and VCE = VBE the device is at the onset of saturation PNP VEB > 0* T F VEC > VEB** VEC> VEB T F T F Saturation R Active F. Active Cutoff * When VEB = 0 and VEC 0 the device is considered to be in cutoff ** When VEB > 0 and VEC = VEB the device is at the onset of saturation