MAL203868471E3

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Aluminum Electrolytic Capacitors

Aluminum electrolytic capacitors are widely used in low-frequency power supply circuits and electronic filters for signal processing, which are important components in the anti-interference field of electronic products. As its name implies, aluminum electrolytic capacitors consist of an aluminum foil anode and a used electrolyte, and they are assembled in an aluminum coil body. MAL203868471E3, as a special aluminium electrolytic capacitor, has the application of automotive, power supplies, and audio applications, and its working principle can be easily explained with a simplified diagram.

Application Field

MAL203868471E3 aluminum electrolytic capacitors are specially designed for car application, power supplies and audio applications. With the great feature of high temperature and current rating, these capacitors not only can help circuit boards to filter, tie, store and block the current, but also can bear extremely high temperature. This make it becomes an ideal choice in the automotive industry, for it has a maximum operating temperature of 105 °C.

In the power supplies field, MAL203868471E3 aluminum electrolytic capacitors are applied to control and provide reliable power in many electrical and electronics products. It controls the flow of electric current, and can provide short-term storage of electrical energy for larger circuits. Moreover, with its low ESR and ESL, MAL203868471E3 has positive effects on the load energy, efficiency, and input power factor correction of AC/DC switch power supplies. It is also suitable for portable audio applications, such as cameras, MP3 players, and mobile phones, where low ESR and ESL are essential for superior performance.

Working Principle

The working principle of MAL203868471E3 aluminum electrolytic capacitors is straightforward. When an external voltage is applied to the two electrodes, the electrolyte will be polarized, and ions flows from the anode to the cathode. This forms parallel striped dielectric layers fixed between two electrodes without physical contact. Both capacitance and voltage directly relate to the layers in between the plates. The capacitance varies with the distance between the two electrodes, and a higher voltage increases the distance, which decreases the capacitance.

This process repeats until the voltage being applied is equal to the capacitor\'s rated voltage. Moreover, when the voltage is at its rated voltage, the electrochemical reaction inside the capacitor will be completed, and the capacitance will remain almost constant. So when the external voltage is below the rated voltage, the capacitance will remain constant; and when the external voltage is above the rated voltage, the capacitor will be damaged and lose its capacitance.

Conclusion

To sum up, MAL203868471E3 aluminum electrolytic capacitors are high temperature-resistant components with high capacitance and low ESR and ESL. They have a wide application field such as automotive, power supplies and audio, and their working principle can easily be understood according to the polarized electrolyte and the parallel striped dielectric layers between two electrodes. With these features, MAL203868471E3 is certainly a great choice in present market.

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