381LX820M450H022

Aluminum Electrolytic Capacitors

Aluminum electrolytic capacitors, abbreviated AECs, are passive electronic components that use an electrolyte to store electrical energy. They are the most commonly used type of capacitor in electronics due to their high capacitance, their low cost, and their good performance when compared to other types of capacitors. As such, they are mainly used as (but not exclusively limited to) decoupling and filtering devices in most electronic circuits.

AECs consist of two conducting aluminum foil plates separated by a thin and porous dielectric layer soaked with electrolyte. The aluminum foils are fixed to a dielectric sleeve and then the whole combination is wrapped in aluminum foil. Electrical conductivity of electrolytes will yield the equivalent of a capacitor response. The capacitance increases with the ratio of surface area and thickness of the plate, while the type and concentration of electrolyte will affect the leakage resistance and the ripple current rating.

The application field of the AEC with the model number of 381LX820M450H022 includes power supplies and applications in frequency converters, UPS, energy storage, and HVAC (heating, ventilation, and air conditioning) systems. It is used for electrical energy storage, decoupling and filtering, and peak power absorption. It has a long life and excellent temperature compensation characteristics.

The working principle of AECs arises from their construction. The capacitor consists of two aluminum foils, separated by a thin dielectric layer. The aluminum foils are polarized and when a voltage is applied, a flow of ions is created from one side of the capacitor to the other, creating an electrical capacitance. This capacitance stores electrical energy in the form of an electric field.

When alternating current is applied to the AEC, it draws current from the power supply by taking energy from the voltage, which then turns it into electrical charge and stores it in the electric field. When the current is removed, the field collapses, releasing the energy back into the system. Thus, AECs are used to store energy during the peak of the current and release it back when needed.

In conclusion, AECs are widely used as (but not limited to) decoupling and filtering devices in most electronic circuits. The application of AECs with the model number of 381LX820M450H022 includes power supplies and applications in frequency converters, UPS, energy storage, and HVAC (heating, ventilation, and air conditioning) systems. It has a long life and excellent temperature compensation characteristics. The working principle of AECs is based on their construction and the capacitance increases with the ratio of surface area and thickness of the plate, while the type and concentration of electrolyte will affect the leakage resistance and the ripple current rating.