MAL212324221E3

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Aluminum Electrolytic Capacitors: MAL212324221E3 application field and working principle

Aluminum electrolytic capacitors, also known as Alumilum oxide based capacitors, are widely used for applications ranging from high frequency analog or digital circuits to power supplies due to their low equivalent series resistance (ESR) and simple installation and maintenance. As the category name implies, these capacitors are filled with an electrolytic solution, typically a mixture of alcohols, with one or more type of metal ions suspended in the solution and allow the aluminum metal plates to react differently with the electrolyte.

The MAL212324221E3 aluminum electrolytic capacitor is specifically designed for use in high-frequency analog/digital circuits. Its reduced ESR enables more efficient filtering of power supply interference. The maximum operating temperature of the product is listed as 105°C and the capacitance is 470µF. The product is also listed as an extended life product, meaning that it is guaranteed to last up to 10,000 hours under normal operating conditions.

The working principle of an aluminum electrolytic capacitor is based on the principle of an electrochemical capacitor. In the simplest terms, a capacitor stores electrical energy by forming a "double layer" or "electrode depletion layer" between two metal plates that are immersed in an electrolyte solution. This double layer works to hold a charge even when no current is flowing by forming a barrier that prevents electrons from crossing between the metal plates. As the capacitor charges, positively charged ions are attracted to the negative side of the capacitor, while negatively charged ions are attracted to the positive side.

The metal plates in an aluminum electrolytic capacitor are made from aluminum, which acts as the anode in a capacitor and is responsible for storing the electric charge. An insulating aluminum oxide layer is formed on the surface of the aluminum. At the border of the two layers, there are two positive aluminum ions and two negative oxygen ions.

In order for the capacitor to hold a charge, the anode and cathode must be connected to each other. This is accomplished by connecting the two metal plates to the electrical power source. Electrical current then flows between the two plates, charging the capacitor. As the capacitor charges, the positive ions of the electrolyte solution become attracted to the negative terminal, while the negative ions of the electrolyte become attracted to the positive terminal. The electrons then flow between the two plates through the electrolyte solution.

When a voltage is applied to the aluminum electrolytic capacitor, the oxide layer on the anode becomes polarized. When an AC voltage is applied, the polarity of the oxide layer changes with the direction of the current, increasing the charge and then releasing it during the reversal. This repeated changing of the oxide layer polarity creates a capacitor that is capable of storing charge for a certain amount of time.

For the MAL212324221E3 aluminum electrolytic capacitor, the product is primarily designed for applications in high-frequency analog/digital circuits. Its extended life guarantees up to 10,000 hours and its low ESR allows for efficient filtering of power supply interference. The product also has a maximum operating temperature of 105°C and a capacitance of 470µF.

In conclusion, aluminum electrolytic capacitors are one of the most widely used types of capacitors due to their low ESR and simple installation and maintenance. The MAL212324221E3 is a specific aluminum electrolytic capacitor designed for use in high frequency analog/digital circuits. Its extended life and low ESR makes it well suited to applications where power supply interference needs to be effectively filtered out. Finally, the product\'s maximum operating temperature is 105°C and its capacitance is 470µF.

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