ESH475M400AH2AA

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Aluminum electrolytic capacitors are components that can significantly influence the performance of electronic systems. They are widely used in many applications and have become a key component in a variety of digital, RF and mechanical systems. In this article we will discuss the application field and working principle of the ESH475M400AH2AA capacitor.

The ESH475M400AH2AA capacitor is an ultra-high voltage aluminum electrolytic capacitor specifically designed for high power applications that require large amounts of energy storage. With a rated capacitance of 4.7µF, up to 400V, 2A and a minimum operating temperature of -40°C, the ESH475M400AH2AA is well suited to a variety of applications, including automotive, power supplies, DC/DC converters, and electrical motor drives.

The working principle of an aluminum electrolytic capacitor is based on the same analogy as a battery. The capacitor is made up of two conductive plates that are separated by an anode and a cathode. The two plates are separated by a non-conductive liquid, called the electrolyte, which allows current to flow between the two plates. When the plates are connected to a power source, an electric field builds up between them, resulting in an electrolytic reaction, which produces ions which transport the electric current.

The electrolyte reacts to the electric field and helps regulate the amount of current that flows between the two plates. This creates a voltage drop across the capacitor that creates a small amount of energy. This energy is stored as a “charge” in the capacitor and is held until the capacitor is discharged. The amount of energy that can be stored depends on several factors, such as the number of plates, the size of the plates, the voltage and the electrolytic liquid.

The ESH475M400AH2AA capacitor is a high voltage, high temperature aluminum electrolytic capacitor and can operate in temperatures up to 105°C. It is constructed with a die cast aluminum housing and a conductive oxide layer on the lead frame which provides improved stability and reliability. The capacitor has a wide temperature range and an excellent voltage rating, making it suitable for a variety of applications.

The ESH475M400AH2AA has a long service life and is compatible with a variety of mounting techniques. It has a maximum capacitance of 4.7µF and a maximum operating temperature of 105°C and a surge capability of 25%. The capacitance value is stable over a wide temperature range and has low internal leakage. The capacitor is resistant to moisture, dust and oil, making it suitable for a variety of industrial and automotive applications.

In conclusion, the ESH475M400AH2AA aluminum electrolytic capacitor is an ideal component for high-power applications that require high voltage and large amounts of energy storage. Its low temperature coefficient, wide temperature range, and excellent voltage rating make it suitable for a variety of applications. Its long service life and reliable performance make it a great choice for automotive, power supply, and DC/DC converter applications.

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