EKMW421VSN391MR35S

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Aluminum electrolytic capacitors are widely used in various applications due to their compact size and cost-effectiveness. The capacitor type, EKMW421VSN391MR35S, is specifically designed to provide high-end performance, reliability, and long life in rigorous and demanding applications. In this article, we will discuss the application field, features, and working principle of this particular type of aluminum electrolytic capacitor.

Application Field

The EKMW421VSN391MR35S is most commonly used in power supply conditions. It is designed to take on higher temperatures, up to 125°C, and higher levels of ripple current than standard capacitors. The capacitor is well suited to withstand resonance from high frequency switching networks, such as those common in DC-DC / AC-DC converter circuits. It is also useful for other applications that require a reliable source of current over a long period of time such as motor and transformer control circuits.

Features

To meet the higher levels of temperature and ripple current, the EKMW421VSN391MR35S uses an anode made of aluminum foil with a cylindrical structure. The anode is thick enough to withstand temperatures up to 125°C with no stress. It also has a unique feature that regulates the reactance of the capacitor and provides even and stable impedance, thus ensuring that the current is distributed in the same way at all times. The capacitor also has high reliability due to its ability to withstand a variety of shock and vibration, as well as the effects of aging.

Working Principle

The EKMW421VSN391MR35S works on the basis of capacitance and uses two circuits in order to create a capacitor. The first circuit is composed of an anode made from aluminum and a cathode made from a conducting film, such as conductive polymer or carbon paste. The second circuit consists of a thin dielectric film that separates the anode and cathode in order to have a specified capacitance value.

When current is applied to the capacitor, electrolytic gas is generated and equalizes the voltage between the anode and cathode, forming an electric field with the resulting electric charge storage. The stored charge provides the capacitance for the capacitor and this is the working principle of the EKMW421VSN391MR35S.

Conclusion

The EKMW421VSN391MR35S is a type of aluminum electrolytic capacitor that is suitable for high temperature, high current applications. Its unique features and working principle enable it to be reliable and stable over a long period of time. The capacitor is most commonly used in power supplies, DC-DC/AC-DC converter circuits, and motor and transformer control circuits, making it an indispensable tool for many specialized applications.

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