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Aluminum Electrolytic Capacitors

Aluminum electrolytic capacitors are the most popular capacitors offering both high capacitance and high voltage ratings. It consists of two aluminum plates separated by a thin piece of paper which is soaked in an electrolyte solution. The capacitance of the device is determined by physical parameters such as the plate size and spacing, electrolyte composition, and the dielectric constant of the electrolyte.

16YXG470MEFCTA8X16 application field and working principle

The 16YXG470MEFCTA8X16 is an aluminum electrolytic capacitor from the Panasonic Corporation. Its application field is mainly in AC (Alternating Current) line filters, power supplies, and many other low- and high-frequency applications.

This capacitor is capable of handling high voltage and high temperature applications due to its reliability and wide temperature range. The capacitance of the 16YXG470MEFCTA8X16 is 470µF, with a maximum operating temperature of 85°C, and rated voltage of 450Vdc.

The working principle of an aluminum electrolytic capacitor is based on the polarization of the electrodes. When a voltage is applied to the two electrodes, the positive electrode is attracted to the negative electrode and the metal oxides on both electrodes are converted to neutral metal ions. This allows the electric current to flow between the two electrodes, creating a capacitance. As the applied voltage increases, the polarization of the two plates increases, allowing greater current flow.

The capacitance of an aluminum electrolytic capacitor is affected by several factors. The thickness of the dielectric, the size of the plates, and the electrolyte solution all affect its capacitance. It is also affected by temperature and can be improved by cooling it when used in high temperature environments.

When selecting an aluminum electrolytic capacitor, it is important to consider the application needs and environmental parameters. The capacitance should be sufficient for the application and the temperature should be within the range of the device. The rated voltage should meet the requirements of the circuit and the maximum operating temperature must not exceed the device’s specification.

The 16YXG470MEFCTA8X16 is a high-voltage aluminum electrolytic capacitor which is suitable for many low and high frequency applications. With its wide temperature range and high capacitance, it is a reliable and cost-effective device for many electronics.

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