ECQ-E2225KB

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Film capacitors are increasingly being used across a broad range of applications, including AC/DC drives, switching power supplies, industrial controls, lighting systems and white goods, among other areas. The ECQ-E2225KB Series from the Mitsubishi Electric Corporation is an example of a popular film capacitor and is widely used in a range of high-reliability and high-voltage solutions. This article discusses the application field and working principles of the ECQ-E2225KB series.

Application Field of the ECQ-E2225KB Series

The ECQ-E2225KB Series is a family of highly reliable, high-voltage film capacitors. It is designed to meet the demanding requirements of the telecommunications, consumer electronics, data communication, industrial control and power conditioning fields. Its main features include a wide operating temperature range of -40°C to +85°C, a high dielectric strength of 24.2kV/mm, excellent long-term reliability and a low dissipation factor. It is also UL, CSA and VDE approved, making it suitable for use in safety-oriented systems.

The ECQ-E2225KB Series is available in a range of physical dimensions and capacitance values, from 0.01 µF to 10 µF. Common models are the ECQ-E2225KB3K3 and ECQ-E2225KB6K3, which have 3.3 and 6.3V DC voltage ratings respectively. These capacitors feature robust construction with a metalized polyester film dielectric and tin-plated copper end-caps. They also have a long useful life of up to 10,000 hours, making them highly suitable for extended-term use.

Working Principle of the ECQ-E2225KB Series

The working principle of the ECQ-E2225KB Series relies on the ability of electrical capacitance to store electrical energy. The ECQ-E2225KB is a polarized capacitor, which means that it can only store and release charge when the correct voltage is applied to its electrodes.

When a voltage is applied to the ECQ-E2225KB capacitor, it stores the charge in its metalized polyester film dielectric. The capacitor will remain charged until the voltage is reversed or dissipated. This stored charge gives the EECQ-E2225KB its capacitive properties, which can be used to smooth out voltage ripple in electronics circuits, regulate power input and output, or provide a stable voltage for other components.

The ECQ-E2225KB also has the advantage of being resistant to voltage spikes and electromagnetic interference. This is due to its metalized polyester film dielectric, which is designed to block disruptive signals and stabilize the voltage.

Conclusion

The Mitsubishi Electric Corporation’s ECQ-E2225KB Series of film capacitors are highly reliable and suitable for a wide range of applications. They feature a robust construction, a long useful life, and excellent resistance to voltage and electromagnetic interference. The fundamentals of how the ECQ-E2225KB works are based on its ability to store and release charge when the correct voltage is applied.

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