EEU-FR1J821B Capacitors

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Aluminum electrolytic capacitors, also known as note that aluminum electrolytic capacitors or electrolytic capacitors, are widely used in electronic equipment which is due to their high capacitance in limited volumetric case size, low equivalent series resistance (ESR) and long life-span. The EEU-FR1J821B is a type of aluminum electrolytic capacitor, and this article will discuss the application field and the working principle of this part.

Application Field

The EEU-FR1J821B aluminum electrolytic capacitor is especially suitable for use in power supplies, inverters, general-purpose equipment and various devices, including switching power supplies, various types of lighting, ballasts, automotive electronics, and various power transmission and distribution tools. The construction of this capacitor involves a type of aluminum or metal material referred to as an anode foil, a paper separator, and a mandrel roll.

• In power supplies, EEU-FR1J821B aluminum electrolytic capacitors are typically used for decoupling, buffering and filtering signals, helping to maintain stable current and temperatures.
• The EEU-FR1J821B aluminum electrolytic capacitor is also used in various devices to stabilize voltage and reduce noise from the power source.
• As this capacitor provides extremely high capacitance in comparison to the size and weight of the part, it is also widely used to store energy in industry, smart grids, and renewable energy.
• The EEU-FR1J821B capacitor is also used in high-power electric drive systems, such as electric vehicles, electric locomotives, wind power generation systems, and photovoltaic power installations.

Working Principle

The EEU-FR1J821B aluminum electrolytic capacitor works on the principle of Faraday’s Law of Electrolysis. When an electric current is passed through an electrolyte solution, the positive ions (cations) and negative ions (anions) of the electrolyte solution move to the respective positive and negative electrodes of the capacitor, which creates a charge. These charge carriers (electrons and ions) form a capacitance value, which is the measure of the capacitors ability to store and transmit energy.

When a voltage is applied across the electrodes of the capacitor, the electrons that were previously stored at the negative electrode are attracted to the positive electrode, and the electric current flows to the capacitor. This creates a capacitance, and the capacitance is determined by the thickness of the anode and cathode foils, the distance between the foils, and the surface area of the foils. The higher the electric current the more charge carriers are created, hence a larger capacitance can be achieved.

The EEU-FR1J821B aluminum electrolytic capacitor also employs a non-solid electrolyte, which is typically an organic or inorganic solution that contains ions. This ensures longer life-span as the electrolyte provides additional protection against both voltage and heat. The electrolyte also provides a wide temperature range for operation, making the capacitor more suitable for a range of applications.

In conclusion, the EEU-FR1J821B aluminum electrolytic capacitor is highly suitable for use in a range of electronic equipment, due to the combination of its low equivalent series resistance (ESR) and volumetric size, as well as its stable working temperature and long life-span. The working principle of this type of capacitor relies on Faraday’s Law of Electrolysis, where an electric current creates charge carriers and creates a capacitance value when an electric voltage is applied.

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