EKMW421VSN471MR40S

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Aluminum Electrolytic Capacitors

Aluminum electrolytic capacitors, also known as electrochemical capacitors, are capacitors that have two electrodes polarized by an electrolyte. Typically, the anode is made of a pure aluminum plate that is covered with an oxide layer of aluminum oxide, and the cathode is made of a carbon or other conductive material. The electrolyte is typically a concentrated form of eutectic mixture containing calcined propylene carbonate, propylene carbonate, or a mixture of anhydrous sodium carbonate and potassium carbonate. These capacitors are usually used in higher power applications, where a large amount of energy must be stored in a smaller footprint.

EKMW421VSN471MR40S Application Field and Working Principle

The EKMW421VSN471MR40S is an aluminum electrolytic capacitors specifically designed for use in power supply, UPS, and energy storage applications. The capacitor is rated for a capacitance of 470µF, max working voltage of 420VDC, and a low internal resistance of 4 ohms. The capacitor is designed to offer a long life time of 10,000 hours, as well as superior thermal performance at high temperature.

Working Principle

An aluminum electrolytic capacitor works by depositing an electrolyte layer on the anode, and creating a layer of oxide on the anode surface. This oxide layer acts as an insulator, preventing electric current from flowing directly between the anode and the cathode. A voltage applied to the electrodes causes an electrical current to flow in a series of steps, creating an overall alternating current flow.

The alternating current flow between the anode and cathode creates an electrochemical reaction between the anode and the electrolyte. This reaction is what stores the energy in the capacitor. When the capacitor is disconnected from the external voltage source, the electrochemical reaction quickly disperses the stored energy in the form of heat.

Advantages of EKMW421VSN471MR40S

The EKMW421VSN471MR40S is an ideal aluminum electrolytic capacitor for power supply, UPS, and energy storage applications, since it offers great performance and reliability. The capacitor has a low resistance, which allows for efficient flow of current, and it also has a high capacity, allowing for more energy storage in a smaller footprint. In addition, it offers excellent thermal performance, greatly increasing its longevity and reliability.

Thus, the EKMW421VSN471MR40S is a great choice for applications that require reliable and efficient energy storage with long lifetime. This capacitor has become increasingly popular due to its superior performance and reliability.

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