400PX4R7MEFC8X11.5

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Aluminum Electrolytic Capacitors

The 400PX4R7MEFC8X11.5 capacitors belong to the aluminum electrolytic capacitor family, and their application field and working principle are summarized below.

Application Field

These capacitors are widely used in various fields, such as consumer electronics, communications equipment, medical electronics, audio systems and automotive electronics. High ripple current, superb temperature and time characteristics, and a variety of mounting methods make it suitable for different application requirements.

Working Principle

The battery in these capacitors is composed of an electrolyte and two aluminum foil electrodes. One of the electrodes is hydrophobic, allowing an electrolyte film to form on its surface; the other electrode is hydrophilic, absorbing the electrolyte. When a voltage is applied across the two electrodes, the electrolyte will be decomposed to generate an electric field, which between the two electrodes to form a capacitance. This capacitance is determined by the size of the two electrodes, the thickness of the electrolyte film, and the type of electrolyte.

Advantages

The use of aluminum electrolytic capacitors can bring many advantages such as high energy density and low inductance, small size and light weight, fast charge and discharge time, high-temperature working capability, long-term stability, and wide capacitance range. In addition, its low cost and availability make it one of the most widely used capacitors in the electronics industry.

Disadvantages

However, aluminum electrolytic capacitors also have some disadvantages. One of the most important is the short lifetime, due to its highly permeable electrolyte, which can easily become contaminated and corroded under the action of high temperature and humidity. In addition, the capacity of the capacitor decreases with the increase in the working frequency, and its dielectric strength is lower than other capacitors.

Conclusion

In conclusion, the 400PX4R7MEFC8X11.5 aluminum electrolytic capacitors are widely used in different application fields and bring many advantages. They are easy to use, and can provide reliable performance in most applications. However, their short lifetimes and reduced performance in high frequencies need to be taken into consideration.

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