EGPD800ELL621MM20H

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Aluminum electrolytic capacitors are widely used in various kinds of electronics and electrical devices in our daily life. The EGPD800ELL621MM20H capacitor is one of them. This article will explain the application field and working principle of this particular capacitor.

Application Field
The EGPD800ELL621MM20H capacitor is usually applied in electronic equipment or signal lines with multiple frequencies. It is suitable for use in power supplies, decoupling, and frequency discrimination circuits. It also can be used for smoothing and noise filtering for digital circuits, and protect the circuit from harmonic distortion. Because of its wide working temperature range from -40℃ to +105℃, the capacitor also can be used in computer applications and industrial control systems.

Working Principle
Aluminum electrolytic capacitors are constructed with an anode made out of a pure aluminum can or foil with a very thin oxide layer grown on its surface. This anode is then saturated with an electrolyte and a second electrode called as a cathode is then added to the opposite side. When an external voltage is applied, the electrolyte decomposes and forms an oxide layer on the anode, thus creating the electric dipole that forms the electric field. The capacitance of the capacitor is directly proportional to the surface area of the anode foil and inversely proportional to the oxide thickness. The larger the surface area, the higher the capacitance that can be achieved with a given oxide layer.

The EGPD800ELL621MM20H aluminum electrolytic capacitor features a very low equivalent series resistance (ESR) and high capacitance, so it can effectively filter high-frequency noise and reduce interference, while still providing a stable and reliable connection. This gives it an edge compared to other types of capacitors in the same price range.

In conclusion, aluminum electrolytic capacitors are widely used in various electronics and electrical devices due to their wide temperature range and high capacitance. The EGPD800ELL621MM20H capacitor is an excellent choice for use in power supplies, decoupling circuits, and digital noise filtering due to its low ESR and high capacitance.

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