EEV-TG1C471Q

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Aluminum Electrolytic Capacitors

Aluminum electrolytic capacitors, also known as aluminum electrolytic capacitors, are capacitors in which both the electrodes are made of aluminum foil. Capacitance is based on the law of electrolysis. It is obtained by using a thin oxide film formed on the surface of the aluminum foil as the dielectric, which is extremely thin, so that the oxide film dielectric capacitance value is very high. Due to the high capacitance, small size and light weight, it is widely used in a variety of areas of the electrical circuit, and its application field and working principle will be discussed in this paper.

EEV-TG1C471Q Application Field

EEV-TG1C471Q is one kind of aluminum electrolytic capacitors with small size and high capacitance, which has a wide range of application fields. Commonly used application fields are as follows:

• Power Supplies: EEV-TG1C471Q aluminum electrolytic capacitors can be used in the filter circuit of switching power supply, which can filter and reduce the ripple current generated by the power supply rectifier bridge.
• Signal Processing System: The capacitor of EEV-TG1C471Q type is also used to filter signals and interfere with other frequencies in audio and video signal processing systems.
• Telecommunication Equipment: The use of EEV-TG1C471Q aluminum electrolytic capacitor can filter, suppress interference, improve rate of signal in signal modulation, and proetect the main circuit from damage, etc.

EEV-TG1C471Q Working Principle

The capacitance of EEV-TG1C471Q aluminum electrolytic capacitor is obtained by the law of electrolysis. The double-sided negative electrode and positive electrode are aluminum foil with different oxidation treatment, and the dielectric is the film on the surface of the oxidized aluminum foil. The principle is mainly divided into the following aspects:

• Oxidation Of Aluminum Foil: The aluminum foil is divided into two sheets of positive and negative electrodes, and each layer is processed by oxidation treatment to form a thin aluminum oxide film on the surface, which acts as a dielectric.
• Electrolyte Osmosis: After the electrodes of the two sides of aluminum foil are formed, a conductive medium, namely electrolyte, is injected into the capacitor by vacuum infiltration technology. After the electrolyte is connected to the two electrodes, it ions further increases the capacitance.
• Dielectric Formation: Under the effect of electric field, the ions in the electrolyte are oriented to the positive and negative electrodes respectively and form a charge on the surface of the film. The mutual action between the opposite charges forms a dipole and the dielectric is formed.
• Capacitance Value: After the dielectric is formed, the capacitance between the two electrodes of the aluminum electrolytic capacitor is determined by the area of the area and the thickness of the sulfur film.

Conclusion

EEV-TG1C471Q aluminum electrolytic capacitor has many advantages such as small size, light weight, high capacity and wide application range. Its application field is mainly used in the filter circuit of power supply, audio and video signal processing, and signal modulation of communication equipment. Its working principle mainly includes aluminum foil oxidation treatment, electrolyte osmosis and dielectric formation, and capacitance value is determined by the area of aluminum foil and thickness of oxide film.

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