(symbol) Letter symbol used to represent impedance in ohms.
zener diode
(component) Normally used to regulate voltage. A p-n junction diode
reverse-biased into the breakdown region; provides high impedance to applied
voltages of less than breakdown magnitude. When breakdown voltage is
reached, an avalanche effect causes the device to conduct – with virtually
no impedance. See also diode.
zero-suppression
(computer/system) The elimination of non-significant zeros in a numeral.
zero voltage switch
(circuit) A circuit designed to switch “on” at the moment the ac supply
voltage crosses zero. This technique minimizes the radio frequency
interference generated at switch closure.
ZIF
(Zero Insertion Force) (component) A component designed to eliminate the
insertion and withdrawal forces during engaging and separating.
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