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Aluminum-Polymer Capacitors

Aluminum-polymer capacitors are composed of an anode that consists of foil of a catalytic metal, such as aluminum, and a flexible dielectric matrix, or polymer, that is normally an organic solid-state material.

One kind of aluminum-polymer capacitor is the EEF-CD1C8R2R. It has a high working voltage of 50V and a high surface temperature operating range. It is compliant with safety standards and adapted for medical applications.

In general, aluminum-polymer capacitors are used to support a variety of needs including clock distribution, blocking, filtering, and energizing in a wide range of applications, such as mobile phone accessories, automotive systems, gaming devices, printers, and more.

EEF-CD1C8R2R Application Field and Working Principle

The EEF-CD1C8R2R is primarily designed for high-efficiency power management in automotive electrical systems. It’s best used as an input filter capacitor, output filter capacitor, and decoupling capacitor. Additionally, it can also be used in power supplies, solar inverters, LED lighting, and energy management systems.

Its construction mainly consists of a non-conductive, dielectric material between two flat aluminum plates which are either washed with liquid electrolyte, or no electrolyte. The plates are sealed in the state they are in by a polymer casing. The EEF-CD1C8R2R’s working principle is based on the same physics of a conventional capacitor, however its robust structure leads to minimal losses over an extended temperature range.

When charge is applied, the interior of the capacitor is filled with droplets of electrolyte that attach themselves to the aluminum plates. These droplets form a metallic charge path, among the plates and act as an insulating barrier between the two, which reduces losses caused by parasitic entry. The EEF-CD1C8R2R is the perfect choice for applications that require higher efficiency and reliability due to its low equivalent series resistance (ESR) and no leakage.

In addition to its constant performance, it has excellent emi suppression characteristics, making it suitable for applications needing to meet the requirements of EMC regulations. The high capacitance-voltage (CV) ratio also offers extended lifetime and stability.

The EEF-CD1C8R2R is capable of balancing the voltage of an electrical system, thus improving the overall efficiency and has the ability to handle higher ripple when compared to common filter capacitors. This enables engineers to save money since the EEF-CD1C8R2R’s high quality performance makes size optimization possible.

Conclusion

The EEF-CD1C8R2R aluminum-polymer capacitor is a cost-effective and reliable choice for many applications due to its advanced construction and high performance. Its excellent emi suppression capabilities and low ESR make it well-suited for automotive electrical systems. This capacitor type can be adapted for medical applications to meet safety standards. Its high capacitive-voltage ratio offers extended lifetime and stability. Overall, the EEF-CD1C8R2R aluminum-polymer capacitor is the perfect choice for applications that need lower losses, higher efficiency, and better performance in circuit operations.

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