ELXM221VSN821MA30S

Aluminum Electrolytic Capacitors – ELXM221VSN821MA30S Application Field and Working Principle

Aluminum electrolytic capacitors, as the name implies, are capacitors that are constructed of an aluminum foil as the anode, separated by an anode spacer, and electrolyte impregnated into the porous cathode. As these capacitors are made of metal, they are able to store larger amounts of energy than most other capacitors, making them ideal for many applications. The ALXM221VSN821MA30S is an aluminum electrolytic capacitor with some unique parameters which we will examine in this article.

ELXM221VSN821MA30S Application Fields

The ELXM221VSN821MA30S aluminum electrolytic capacitor is primarily used in power supplies. It has a maximum voltage rating of 821V, and a rated capacitance of 221µF. It\'s corrosion resistant and has a maximum operating temperature of 85C. This makes it suitable for many applications such as input and output filters in switch mode power supplies, AC line filters, DC and AC blocking, power factor correction circuits, inductive clean supplies, and others. Despite the relatively low capacitance, these capacitors can store large amounts of energy and have a good lifetime.

ELXM221VSN821MA30S Working Principle

The basic working principles of aluminum electrolytic capacitors are the same as for all other capacitors: they store electric charge and allow it to flow through a system. In an aluminum electrolytic capacitor, two electrodes, one of them being aluminum foil and the other being an anode spacer, are separated by a dielectric material. An electrolyte solution is impregnated into the porous cathode material, filling all the gaps within the material.

The aluminum foil acts as an anode, and the ionized molecules of the electrolyte solution act as a cathode. When voltage is applied to the capacitor, it causes the aluminum foil to take a negative charge and the anode to take a positive charge. This creates an electric field across the device, which allows current to form between the anode and the cathode, thus forming a circuit and allowing the capacitor to store its electric charge.

Conclusion

The ELXM221VSN821MA30S aluminum electrolytic capacitor is a reliable device that can store and release large amounts of energy. Due to its relatively high operating temperature and good corrosion resistance, this capacitor is suitable for many applications, such as input and output filters in switch mode power supplies, line filters, DC and AC blocking, power factor correction circuits, and inductive clean supplies. Knowing the working principles of this capacitor is essential for understanding how it can be used effectively.