EEE-HBA221UAP

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Aluminum Electrolytic Capacitors

An aluminum electrolytic capacitor, also called an aluminum electrochemical capacitor, is an electrolytic capacitor that uses an aluminum-based electrolyte. It typically consists of two aluminum foils separated by a paper or plastic film, which act as the electrodes. The foil is then soaked in an alkaline electrolyte solution, which forms an oxide layer on the surface of the foil. This oxide layer acts as an insulating layer and prevents oxidation of the electrolyte. The capacitance of the aluminum electrolytic capacitor ranges from a fraction of a microfarad to thousands of microfarads.

Due to their high volumetric efficiency and low equivalent series resistance (ESR), aluminum electrolytic capacitors are widely used in applications such as power supplies, DC-DC converters, audio amplifiers, radio transmitters, and computer motherboards.

EEE-HBA221UAP Application Field

EEE-HBA221UAP aluminum electrolytic capacitors are primarily used for high-frequency applications, such as in audio amplifiers or radio transmitters. These capacitors are especially suitable for a critical signal quality demand, whose ripple current and temperature stability are considered the target specifications.

The capacitors are also used for power supplies, DC-DC converters, motorized vehicles, communication devices, precision measurement systems, and many other various electronic devices.

EEE-HBA221UAP Working Principle

The main components of EEE-HBA221UAP aluminum electrolytic capacitors are an anode (positive electrode) and a cathode (negative electrode). They are connected to each other via an electrolyte. The electrolyte conducts electricity, while the anode and cathode act as plates of a capacitor.

When voltage is applied across the terminals of the capacitor, electrons are attracted to the positive anode and are repelled by the negative cathode. This creates an electric field between the plates that stores energy. The electric field strength depends on the distance between the plates and the capacitance of the capacitor.

The capacitance is directly proportional to the area of the plates and inversely proportional to the distance between the plates. This means that the larger the plate surface area, the larger the capacitance, and the smaller the distance between the plates, the higher the capacitance.

EEE-HBA221UAP aluminum electrolytic capacitors are known for their excellent efficiency and very low ESR. This makes them suitable for high-frequency applications, as they can provide excellent signal quality and low energy losses.

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