E81D421VEN751MA55M

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Aluminum electrolytic capacitors, also known as alu caps, are a type of capacitor that uses an aluminum oxide film to store charge and are one of the most commonly used types of capacitor. The capacitance of an aluminum electrolytic capacitor is typically much higher than the other types of capacitors. They have the ability to store energy in a very small space and are generally used in applications ranging from relatively low-voltage DC circuits (such as timing circuits) to high-frequency switching and AC circuits. The E81D421VEN751MA55M is an example of an aluminum electrolytic capacitor.

The E81D421VEN751MA55M is a polarized aluminum electrolytic capacitor that is rated at 105°C. It has a rated voltage of 100VDC, an insulation resistance of 100 M ohms, a leakage current of 4.0uA and a cap. value of 220uF. It also features good ESR, low temperature coefficients, and good frequency characteristics over a wide range of temperatures. The E81D421VEN751MA55M is designed to be used in audio-frequency, DC-link, and AC-link applications.

The working principle of an aluminum electrolytic capacitor is based on Faraday\'s law of electromagnetic induction. That is, a voltage applied across the capacitor induces a current to flow through it, which creates an electric field in the electrolyte, resulting in a layer of oxide film forming on the anode (aluminum). This oxide film acts as a dielectric and stores electrical charges. The charge stored on the oxide film is proportional to the applied voltage.

In its simplest form, an aluminum electrolytic capacitor consists of two aluminum plates that are separated by an electrolyte. When a voltage is applied across the capacitor, a current flows through it and the electrons move through the oxide film of the anode, creating an electrical charge on the oxide film. This charge is stored as electrical energy until the voltage across the capacitor is reduced or reversed.

This stored energy can then be released when needed. Due to the high storage capacity of the oxide film, aluminum electrolytic capacitors are ideal for applications where large amounts of energy need to be stored in a small space. Examples include in power supplies, DC-link control systems, and audio frequency applications.

The E81D421VEN751MA55M is also designed to be used in high-temperature environments due to its high temperature rating. Its high insulation resistance and low leakage current make it suitable for applications where long-term reliability is important. Its low temperature coefficient also ensures that the capacitor functions properly over a wide range of temperatures.

In summary, the E81D421VEN751MA55M is a polarized aluminum electrolytic capacitor which has a rated voltage of 100VDC, an insulation resistance of 100M ohms, a leakage current of 4.0uA and a cap. value of 220uF. It is designed to be used in audio-frequency, DC-link and AC-link applications. The working principle of the E81D421VEN751MA55M is based on Faraday\'s law of electromagnetic induction whereby a voltage applied across the capacitor causes a current to flow through it. This current is then stored as electrical energy in the oxdide film on the anode.

The E81D421VEN751MA55M is suitable for applications that require high storage capacity, high-temperature performance and long-term reliability. In particular, it is an excellent choice for applications such as power supplies, DC-link control systems, and audio-frequency applications.

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