EKY-500ELL821ML20S

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Aluminum electrolytic capacitors utilize an electrolyte solution as the dielectric material between two aluminum foils. The aluminum foil acts as the cathode, and the electrolyte serves as the anode. This configuration increases the capacitance relative to other types of capacitors. The most common electrolyte used in aluminum electrolytic capacitors is a solution of ammonium bicarbonate, although other electrolytics such as potassium hydroxide, acetic acid, and polyethylene glycol are also used. This type of capacitor is generally used in applications requiring high capacitance and high voltage, such as in power electronics and automotive systems.

The EKY-500ELL821ML20S aluminum electrolytic capacitor is a radial, cylindrical capacitor with a maximum operating voltage of 20V and an operating temperature range of -55°C to +85°C. It has a typical capacitance of 8200 microfarads (µF) with no more than 10% change in capacitance at 1kHz. The capacitor is constructed from aluminum oxide, nickel-plated steel, and aluminum foil, and the electrolyte is ammonium bicarbonate. The package size is 10mm in diameter and 21mm in length. This capacitor is available with various tolerance ratings and signal noise rejection characteristics.

The EKY-500ELL821ML20S aluminum electrolytic capacitor is typically used in automotive components, as well as high-power circuits, including power-line filters, audio amplifiers, and switching power supplies. It can also be used to filter AC ripple on a DC power line, provide high capacitance in a small package, and store large amounts of energy. The capacitor exhibits low equivalent series resistance (ESR) and good ripple current capability, making it suitable for filtering low-frequency AC ripple on a DC power line and other automotive applications.

The working principle of the EKY-500ELL821ML20S aluminum electrolytic capacitor is based on Faraday\'s law, which states that when a voltage is applied across a pair of oppositely charged plates, a charge will be stored on the plates. As the voltage across the plates increases, the capacitance increases. The EKY-500ELL821ML20S capacitor is constructed from aluminum oxide and aluminum foil, which serve as the dielectric material, and the ammonium bicarbonate electrolyte. The electrolyte is what allows the capacitor to store energy and also defines the minimum value of the capacitance. The capacitance of the capacitor is determined by the size of the plates, the distance between them, and the dielectric constant of the material between them. The electrolyte also affects the capacitance, as it affects the dielectric constant.

The EKY-500ELL821ML20S aluminum electrolytic capacitor is a versatile and reliable option for a wide range of applications, including automotive components, power-line filters, audio amplifiers, and switching power supplies. Its high capacitance and low ESR allow it to filter AC ripple on a DC power line and store large amounts of energy. The capacitor is constructed from aluminum oxide, nickel-plated steel, and aluminum foil, and the electrolyte is ammonium bicarbonate. Its construction and working principle give it the ability to store and release energy, making it suitable for use in a variety of applications.

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