EKMM401VSN681MA50T

Aluminum Electrolytic Capacitors: EKMM401VSN681MA50T Application Field and Working Principle

Aluminum electrolytic capacitors, often referred to simply as electrolytic capacitors, are a type of capacitor that uses an aluminum oxide film as the dielectric. They are designed to provide high capacitance at a comparatively lower voltage rating than other capacitor types. They are used in a wide range of applications, from audio and electronics to power supplies, renewable energy systems, and military and aerospace applications.

Application Field

The most common application for aluminum electrolytic capacitors is in the area of power supply filtering. Filtering involves removing unwanted noise from a system caused by unrelated components. By connecting the capacitors in series, the unwanted noise is reduced or even eliminated. Additionally, capacitors are used to reduce the voltage ripple in switching power supplies, as well as in combination with other components to act as a voltage regulator.

The EKMM401VSN681MA50T capacitor is a popular choice for high power applications such as welders, variable speed drives, and electronic controls. The EKMM401VSN681MA50T is an Axial Aluminum Electrolytic Capacitor with a high capacitance and long life. It is capable of continuous operation temperatures up to 125°C, with a rated voltage of 50V DC. The EKMM401VSN681MA50T is also available in alternate voltages.

Working Principle

Aluminum electrolytic capacitors are comprised of two aluminum foil electrodes and an electrolyte-soaked paper separator. The aluminum foil on the positive electrode is coated with an oxide film. This film provides the dielectric for the capacitor. The negative electrode is connected to a metal circuit lead. When a voltage is applied, the positive electrode acts as an anode and current is conducted through the electrolyte.

The electrolyte acts as the collecting medium, allowing electrons to flow freely between the two electrodes. This creates a positive charge on the positive electrode and a negative charge on the negative electrode. This charge build-up, which acts like a barrier, is what stores energy in the capacitor and makes it useful in electrical circuits.

Aluminum electrolytic capacitors are generally considered to be a reliable, relatively low cost, and simple to use type of capacitor. As such, they are widely used in a variety of applications for both industrial and consumer electronics. They are available in a variety of sizes, shapes, dielectric types, and voltage ratings, making them suitable for a wide range of applications.