EEU-HD1H220B

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Aluminum electrolytic capacitors are widely used components in various electrical circuits. The EEU-HD1H220B is a type of aluminum electrolytic capacitor specifically designed for power electronics applications. In this article, we\'ll take a look at what makes the EEU-HD1H220B special, its suitable application field and its working principle.

Description and Specification

The EEU-HD1H220B aluminum electrolytic capacitor is designed by Panasonic and is rated at 220μF/25V. This capacitor is made with a snap-in terminal, to provide reliable connections and secure installation. The snap-in design also allows for flexibility in the terminals\' angle, allowing for easier installation.

The package size of the EEU-HD1H220B is 7.4 x 10.4mm, and its lifetime is 5,000 hours at +125°C. It has a low ESR value of 243mΩ and a rated ripple current (105°C, 120Hz) of 1.2A.

The EEU-HD1H220B is rated at an ambient temperature range of -40°C to +105°C and it has a -55°C to +125°C application temperature range. It also has a protective foil, which adds to its resistance against external forces.

Application Field and Benefits

The EEU-HD1H220B aluminum electrolytic capacitor is designed to operate in high temperature and harsh environments, making it ideal for power electronic applications such as power supplies, motor drives, and lighting control. It is also suitable for automotive, industrial, and home appliance applications.

The EEU-HD1H220B\'s snap-in terminal design and low ESR value makes it an excellent choice for applications that require high reliabilty and efficient heat dissipation. It\'s also resistant to vibration and shock due to its protective foil, making it particularly suitable for mobile applications.

Working Principle

An aluminum electrolytic capacitor is a type of capacitor that uses an electrolyte solution as the dielectric material. The dielectric layer is formed by the reaction between the electrolyte and the anode foil. This creates a thin oxide layer on the surface of the anode foil, which acts as the dielectric material.

The electrolyte solution is held in place by a separator material—usually a porous sheet or a plastic film—which serves as the negative component of the capacitor. The anode foil is usually made of aluminum, while the cathode is typically made of aluminum foil coated with an organic material.

The EEU-HD1H220B operates in a similar fashion to other aluminum electrolytic capacitors, except that its anode foil is etched with a pattern of lines to increase its surface area. The etched pattern allows the capacitor to store more charge, resulting in better overall performance.

Conclusion

The EEU-HD1H220B aluminum electrolytic capacitor is a specialized component that is designed to provide reliable power electronics performance in high-temperature and harsh environments. Its snap-in terminal design and low ESR value make it ideal for applications that require high reliability and efficient heat dissipation, while its protective foil makes it resistant to vibration and shock. The etched anode foil increases the capacitor\'s surface area and allows for better overall performance.

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