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Aluminum Electrolytic Capacitors

Aluminum electrolytic capacitors are one of the most commonly used types of capacitors in electronic circuits due to their low cost and ease of use. They are composed of two aluminum foils, separated by a thin paper dielectric layer, and are filled with a potassium hydroxide electrolytic solution. The layers of aluminum foil act as the positive and negative plates of the capacitor, and the electrolyte solution provides the charge storage mechanism.

UMJ0J470MDL Application Field and Working Principle

The UMJ0J470MDL is an aluminum electrolytic capacitor specifically manufactured for use in high frequency circuits. It features a capacitance of 47uF, rated voltage of 25V, and a temperature range of -40°C to +105°C. It also has a maximum ESR of 0.07Ω, a high ripple current of 6.6A, and a long life of up to 3,500 hours.

The UMJ0J470MDl utilizes the principles of electrolytic capacitors, in which two metal plates, separated by an electrolyte, create a charge-storage mechanism. One of the metal plates is the anode, which is connected to the positive terminal of the circuit, and the other plate is the cathode, which is connected to the negative terminal. When a voltage is applied to the capacitor, ions are attracted to the plates, creating an electric field. This electric field causes a charge to be stored on the plates, creating a capacitance.

The UMJ0J470MDL is designed to handle high frequencies up to a maximum of 100kHz. Its high ESR and long life make it ideal for use in applications such as audio and video circuits, power supplies, and computers. Its high ripple current capacity also ensures that it can handle large transient currents without loss of performance.

The high temperature rating of the UMJ0J470MDL also makes it suitable for high temperature applications, such as automotive, where high temperatures are encountered. The capacitor is hermetically sealed, which ensures that it does not suffer any degradation due to exposure to the elements. This helps to make the capacitor more reliable and longer lasting than standard electrolytic capacitors.

The UMJ0J470MDL is an excellent choice for a wide variety of applications due to its low cost, long life, high ESR, and high ripple current capacity. Its hermetically sealed construction also make it suitable for use in a variety of environments.

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