381EL221M400A022

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Aluminum electrolytic capacitors are the most widely used linear capacitors in electronic products. The 381EL221M400A022 is a type of aluminum electrolytic capacitor. This application field and working principle of this type of capacitor will be discussed in this article.

The 381EL221M400A022 aluminum electrolytic capacitor is mainly used in the professional audio systems, power modules, and audio playback systems of audio and video products. It can effectively filter the interference signals from outside and make the signal to achieve better quality. The aluminum electrolytic capacitor has many advantages: low cost, high reliability, wide temperature range. It is one of the most popular types of aluminium electrolytic capacitors in the market.

The working principle of the 381EL221M400A022 aluminum electrolytic capacitor is mainly composed of two electrodes and two electrolyte diaphragms. When an alternating voltage is applied to the capacitor, the positive and negative charges generated on the electrodes will move the diaphragms accordingly, which will cause the electrical field between the diaphragms and the applied electric field to be opposite in direction. This will cause the electrical field to move back and forth between the two electrodes, resulting in a change in the charge stored in the capacitor. In this way, the alternating electric field can be converted into an energy storage device, thus playing the role of storing electric energy.

After the above discussion of the 381EL221M400A022 aluminum electrolytic capacitor application field and working principle, we can see that this type of capacitor has the characteristics of stable performance, wide temperature range, high reliability and long life. It can effectively filter interference signals and provide better audio and video signal quality. Therefore, it is widely used in audio and video equipment.

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