ELXV160ELL222ML20S

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Aluminum Electrolytic Capacitors

An aluminum electrolytic capacitor is an electrical component that acts as an electricity storage device by using an electrochemical process instead of solid dielectric material. It is composed of two metallic foil plates with a thin layer of aluminum oxide or a polymer electrolyte between them, forming an anode (positive) and a cathode (negative). The capacitor is usually sealed in a cylindrical case so as to keep the electrolyte and the desired electrical characteristics stable over time. This type of capacitor is widely used in modern electronic systems, due to its favorable cost/benefit ratio.

ELXV160ELL222ML20S Application Field and Working Principle

The ELXV160ELL222ML20S aluminum electrolytic capacitor is specifically designed to act as an energy storage device in a wide range of DC and AC applications. Its electrical characteristics are optimized for both low-noise high performance operation and high-temperature reliability and durability.

The working principle of an aluminum electrolytic capacitor is based on the movement of electrical charges across an electrically conductive medium (electrolyte) between two metallic plates (anode and cathode) having an insulating layer of aluminum oxide. Typical working voltages range from 6 V to 500 V. The capacitance of the capacitor is determined by the distance between the two plates, as well as their area, and the thickness of the insulating layer. Since the insulating layer acts as a dielectric, the capacitance (in Farads) is determined by the equation as:

Where \(\varepsilon\) stands for the relative permittivity of the dielectric, \(A\) for the area of the plates, and \(d\) for the thickness of the insulation layer.

The ELXV160ELL222ML20S aluminum electrolytic capacitor is specially designed for operations at high temperatures. It is rated as a long-life component, capable of working up to 125 °C while providing a relatively constant capacitance. Its capacitance value and its capacitance tolerance over temperature are generally very low. It is capable of providing extremely low ESR (Equivalent Series Resistance) values, which makes it ideal for use in low-noise applications. Its effective capacitance values range generally from 6uF – 220uF.

In summary, the ELXV160ELL222ML20S aluminum electrolytic capacitor is an efficient and cost-effective energy storage device, specially designed to meet the requirements of DC/AC applications in challenging environmental and operational conditions. It has a relatively high temperature durability, low ESR and low capacitance tolerance, making it suitable for a wide range of applications.

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