Electronics Glossary – Y

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Term Definition
Y The ratio of current to voltage, the reciprocal of impedance. The unit of admittance is the siemens (S). Admittance is typically abbreviated as “y” or “Y.”
Y-Axis The ordinate or vertical axis in a cartesian plane
yield The ratio of usable components, at the end of a manufacturing process, to the number of components initially submitted for processing.
y-Parameter The set of parameters for a two port device that relates the input and output currents to the input and output voltages.