Global Standards for the Microelectronics Industry
voltage fall time (of a transistor) (tfv)
The time interval during which the collector (or drain) voltage changes from 90% to 10% of its peak off-state value, ignoring spikes caused by interaction with other components or parasitics, e.g., freewheeling-diode recovery current and parasitic inductance.
References:
JESD24, 7/85
JESD77-B, 2/00
