EKZN101ELL8R2ME11D

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Aluminum Electrolytic Capacitors

Aluminum electrolytic capacitors are electrochemical capacitors, generally small, which are characterized by their extremely high capacitance values, albeit at a higher equivalent series resistance (ESR) and equivalent series inductance (ESL) than other types of capacitor. Aluminum electrolytic capacitors are generally composed of two aluminum foils (anode and cathode) separated by a synthetic paper soaked in electrolytic solution, and with its two contacts sealed. The anode is typically made of an aluminum foil with microscopic holes. The anode includes a preformed electrolyte that serves as the connector between the two aluminum foils. The structure of the capacitor is internal and the capacitor’s contacts are external, since the anode cannot be accessed from the exterior.

EKZN101ELL8R2ME11D Application Field and Working Principle

The EKZN101ELL8R2ME11D aluminum electrolytic capacitor is a single-ended type with a voltage rating of 25V and a capacitance of 68uF. It is particularly suitable for applications in audio equipment, automotive electronics, telecommunications, and other electronics. This capacitor is capable of withstanding high temperatures, enabling it to perform reliably in environments with high humidity and high temperatures. The EKZN101ELL8R2ME11D capacitor utilizes a non-solid electrolyte design, which helps reduce the equivalent series resistance (ESR), and improve the radio frequency (RF) performance of the capacitor.

The working principle of the EKZN101ELL8R2ME11D aluminum electrolytic capacitor is to produce an electrical field and a polar fluid, which works in combination to permit the capacitor to store a charge. The electrical field is created by two single-layer aluminum sheets, coated with a thin insulating layer of oil, separated and compressed by a flexible seal. The electrically charged foil and polarized liquid create an electric field which is used to store a charge and provide capacitance in the form of electrical energy. The electrolytic fluid, usually composed of an organic acid, serves as the bridge between the two aluminum foils and helps to maintain a strong electrical connection between the two. The polarized electrolyte also helps to protect the capacitor from premature failure due to high temperatures and overvoltages.

Unlike other types of capacitors, aluminum electrolytic capacitors are not limited by their dielectric constant, which is something that allows them to offer significantly higher capacitance values than other types. Furthermore, the EKZN101ELL8R2ME11D aluminum electrolytic has a very low equivalent series resistance (ESR) value and its characteristic of good self-healing ensures an extended service life. This capacitor also has a wide operating temperature range, enabling it to continuously operate in temperatures from -55 to +85 degrees Celsius.

Given that aluminum electrolytic capacitors are widely used in various applications, their performance must be assessed for safety considerations. It is important to keep in mind that due to the nature of aluminum electrolytic capacitors, they can react differently in different environments. Therefore, the EKZN101ELL8R2ME11D capacitor must be tested in different environments to ensure it can withstand temperature cycling, high humidity, and other adverse conditions without failuring.

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