228CKE016M

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Aluminum Electrolytic Capacitors

The 228CKE016M belongs to the family of aluminum electrolytic capacitors as it is composed of aluminum foil patterned with a non-conductive oxide layer with electrolyte usually containing a solution of ethylene glycol and boric acid of its own electrical field. It can be recognized due to its low price and long use life in contrast with other capacitor types.

Application field

Aluminum electrolytic capacitors are used all over the world in innumerable different factories and devices. The capacitors of this family can be used in low-kV motor starters, electrical equipment and rectifier, DC filters, power supplies, energy meters and most significantly high energy surge absorption applications. 228CKE016M also finds its application in audio-video filtering where it suppresses any kind of noise that is out of the audible range.

Working Principle

Before digging deeper, let’s understand the basics. A capacitor is an electronic component that is able to store energy in the form of an electrical charge. It consists of two conducting surfaces separated by an insulating material called the dielectric. These conducting surfaces are usually made of metal or metal oxide film.

The structure of an aluminum electrolytic capacitor consists of a rolled-up aluminum foil covered with an insulating layer of metal oxide. The aluminum foil is the one on which the electrical charges are stored. This foil acts as one terminal, while the other terminal is made of solid material. The interior of the capacitor is filled with an electrolyte, which is composed of a solution of ethylene glycol and boric acid. This is what makes it so different from other capacitors.

The working principle of an aluminum electrolytic capacitor is quite simple. During their fabrication process, a positive electrical charge is stored in the aluminum foil. When the capacitor is connected to the circuit, the positive charge attracts electrons from the negative terminal. This results in a potential difference between the two terminals, which produces a voltage across the terminals and an electric field between them. This electric field is responsible for the capacitance of the aluminum electrolytic capacitor.

Due to the presence of the electrolyte, the aluminum electrolytic capacitor possesses a much higher capacitance than an ordinary capacitor. This, in turn, means that a larger charge can be stored in it, while only a small amount of current is required to charge it up. Additionally, the presence of the electrolyte also allows it to withstand higher voltages.

Conclusion

The 228CKE016M aluminum electrolytic capacitor is a type of polarized capacitor that has many unique characteristics, such as a high capacitance and the ability to withstand higher voltages. These characteristics are why it is used in many different applications, such as audio-video filtering and high energy surge absorption. Its working principle is based on a positive electrical charge stored in the aluminum foil and an electrolyte solution, which allows it to store a large charge with a small current.

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