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AC Capacitors - Usually required where motor starting torques must be relatively high in relation to running torque. Can be found in motors in conjunction with the windings.
AC Ripple - The alternating current superimposed on the dc bias after rectification in a power supply.
Air Capacitors - A capacitor having only air as the dielectric material between its plates.
Air-gap Capacitors - Air-gap capacitors have a low dielectric loss. Large-valued, tunable capacitors that can be used for resonating HF antennas can be made this way.
Aluminum Electrolytic - A polarized capacitor exhibiting a very high capacitance/volume ratio that consists of two electrodes immersed in an electrolyte, with a chemical film that acts as a dielectric on one or both electrodes. Electrolytic capacitors are made by winding either plain or etched foils on which an oxide has been formed on the surface of one (either anode or cathode) film. The etching of the foil increases the surface area and a considerable increase in capacitance can thus be obtained.
Aluminum Electrolytic Capacitors - Consists of two conducting electrodes, with the anode having an aluminum metal oxide film acting as the dielectric material or insulating medium. These capacitors are generally used in filtering, bypassing and coupling.
Anode - An electrode through which current enters any nonmetallic conductor.
Axial Leads - Axial leaded capacitors with terminal wires egressing from the sides of the capacitor body.