AFK476M35D16B-F

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Aluminum Electrolytic Capacitor

An aluminum electrolytic capacitor is an electrical component used to store energy that is comprised of two isolated metal plates separated by an electrolytic solution. It is typically used in electronic devices, such as TVs, radios, computers, and power supplies. The capacitor is named after its most dominant component, namely, an aluminum foil and an electrolyte. The aluminum foil is the plate, and the electrolyte the dielectric.

AFK476M35D16B-F application field and working principle

The AFK476M35D16B-F is an aluminum electrolytic capacitor designed for use in high-frequency switching power supplies, DC/DC converters, and high-density PCB circuits. The device has a capacitance of 47µF, rated voltage of 16VDC, impedance of 30ohm, maximum operating temperature of 105 degrees Celsius, and a ripple current of 2.7A. Its purpose is to store energy for short periods of time and to minimize voltage waveform distortion during periods of high-frequency current switching.

The AFK476M35D16B-F aluminum electrolytic capacitor works by blocking the flow of direct current and allowing the flow of alternating current. It does this by having two metallic plates which are separated by a dielectric. The dielectric is composed of an electrolyte solution, or an insulator, which does not allow the current to pass between the plates. The electrolyte performs two functions; firstly, it increases the capacitance of the capacitor, and secondly, it blocks the DC current flow.

The capacitor is constructed with a positive and negative plate. The positive plate is made of an aluminum foil. It has a thin coating of oxide on its surface. The negative plate is usually made of a thick aluminum or steel sheet. The two plates are separated by an electrolyte, usually a solution of borax or glycerin. When a voltage of the same polarity is applied across the plates, the charges accumulate on the plates, creating a small electric field. This electric field causes a short circuit current to flow between the capacitor plates and stores energy.

When the electron current is applied to the plates, the charges accumulate on the oxide layer of the electrodes, creating an electric field. This electric field causes the capacitor to act as an energy store. As the voltage is removed again from the capacitor, it begins to discharge, releasing the stored energy. This discharge causes the capacitor to act as an energy-transfer device, sending the stored energy back into the circuit.

The AFK476M35D16B-F aluminum electrolytic capacitor is a reliable, efficient, long-lasting device used in electronic devices to temporarily store energy and minimize voltage waveform distortion during periods of high-frequency current switching. It is ideal for applications requiring high frequency switching and is capable of withstanding minimum operating voltage, temperature, and maximum ripple current.

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