400MXC100MEFC20X35

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Aluminum electrolytic capacitors are electrochemical devices that store electrical energy using an electrolyte and two aluminum foils (aluminum foil and aluminum oxide film) separated by paper sheets or plastic films. The 400MXC100MEFC20X35 capacitor is a surface-mount aluminum electrolytic capacitor with a capacitance of 400 μF, a voltage rating of 100 V, and a temperature coefficient of 20 C/W (x10), and 35 mV at a rated ripple current. This type of capacitor is most commonly used in power supply filtering, frequency filtering, and high frequency switching power supply circuits.

Working Principle of the 400MXC100MEFC20X35 Capacitor

The working principle of an aluminum electrolytic capacitor is based on Faraday\'s law of electrochemistry, which states that "An electric current is generated when an electrical field passes through an ionic electrolyte solution". When an electric field is applied to an electrolyte solution such as boric acid, a reaction takes place, which causes electrons to flow from the negative side of the electrical field to the positive side. This reaction causes a build-up of electrons at the negative side of the electrical field, which form a negative charge. Since the positive side of the electrical field is now charged, it attracts the electrons from the negative side, creating a positive charge on the positive side of the field. This creates a buildup of opposite charges, resulting in a potential difference across the electrolyte solution.

This potential difference is what creates electric energy and this is how aluminum electrolytic capacitors work. In order to store electric energy, two aluminum foils (aluminum oxide film and aluminum foil) are separated by paper, plastic, or other insulating materials. An electric charge is then applied to the two aluminum foils, which cause electrons to flow from the negative side to the positive side of the aluminum foil. This creates a center of charge, which is then stored in the form of electric energy. As the charge builds up, a potential difference is created across the capacitor.

Application Field of the 400MXC100MEFC20X35 Capacitor

The 400MXC100MEFC20X35 capacitor is a surface-mount aluminum electrolytic capacitor that is often used in power supply filtering, frequency filtering, and high frequency switching power supply circuits. These kinds of capacitors are often used in the smoothing of power supplies and also in the filtering of power supply noise. They are also widely used in various types of radio-frequency circuits, such as television tuners, mobile phones, modems, and similar electronic equipment. Additionally, they can also be used in voltage regulators, motor controllers, and similar applications. Furthermore, these capacitors can also be used for signal processing, such as in audio amplifiers and filters.

When used in power supplies, the 400MXC100MEFC20X35 capacitor can help reduce voltage spikes, ripples, and other noise that can be generated by the switching of electrical components. This capacitor can also be used to minimize voltage transients in power supplies, which can reduce the number of components required to properly power an electronic device. Additionally, when used in high frequency circuits, this capacitor helps improve the efficiency of the circuit by providing a low impedance connection between components. This helps reduce interference and crosstalk between components.

Overall, the 400MXC100MEFC20X35 capacitor is an ideal choice for power supply filtering, frequency filtering, and high frequency switching power supplies. Furthermore, it is suitable for use in applications that require high reliability, low ripple noise, and high capacitance levels. As such, it is an essential component for any power supply designer and should not be overlooked.

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