ALS80A821DE400

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Aluminum Electrolytic Capacitors

Aluminum electrolytic capacitors are a type of capacitor consisting of two aluminum foils which act as an anode and a cathode, separated by an electrolyte which aids electron flow between the two. Electrolytic capacitors are polarized, meaning they must be connected with the correct polarity, otherwise the electrolyte will break down, and the capacitor may be damaged. They can be used in a wide range of applications, such as power smoothing, filtering, signal coupling, bypassing, and others.

ALS80A821DE400 Application Field and Working Principle

The ALS80A821DE400 aluminum electrolytic capacitor is an ideal choice for power supplies, industrial applications, and other DC-DC converters due to its low ESR and high ripple current-handling capabilities. The ALS80A821DE400 has a maximum operating voltage of 450Vdc and a temperature range of -55°C to +105°C. It is RoHS compliant, UL certified, and TÜV certified.

The primary mechanism that contributes to the remarkable performance of the ALS80A821DE400 is its design. Its anode consists of two aluminum foils that are separated by a spacer made of special paper. The spacer is soaked with an electrolyte, usually a type of organic solvent. A cathode foil is connected to the anode via a special stitching technique.

The electrolyte functions as a pathway for electrons to flow between the anode and cathode, creating a current. This current allows charge carriers (electrons and ions) to move freely, forming an electrical field that can store and release energy. The spacer acts as a dielectric that separates the two foils and helps maintain the integrity of the electric field.

When voltage is applied to the ALS80A821DE400, positive ions in the electrolyte collect at the cathode, while negative ions collect at the anode. This process is known as electrolytic polarization, and is what allows aluminum electrolytic capacitors to maintain a charge for a relatively long time.

In addition, the ALS80A821DE400 features a special construction which helps minimize ESR. This construction utilizes an additional spacer, which is inserted in between the two aluminum foils and helps to evenly distribute the ions in the electrolyte. This results in a low ESR, which is beneficial in applications that require precise power control.

The ALS80A821DE400 aluminum electrolytic capacitor is a valuable component in power supplies, industrial applications, and DC-DC convertors due to its low ESR, high ripple current-handling capabilities, and wide operating temperature range. Its construction also helps to minimize ESR, making it an ideal choice for precision power control.

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