sustaining voltage, collector-emitter, base open (VCEO(sus))

The collector-emitter breakdown voltage at relatively high values of collector current at which the breakdown voltage is relatively insensitive to changes in collector current, when the base terminal is, respectively,

  • open-circuited.
  • short-circuited to the emitter terminal.
  • returned to the emitter terminal through a specified circuit.
  • returned to the emitter terminal through a specified resistance.
  • returned to the emitter terminal through a specified voltage.

NOTE This is the transient voltage between the collector and emitter terminals during switching with an inductive load from a forward-biased base-emitter to one of the external conditions described above.

References: 

JESD10, 9/81

JESD77-B, 2/00