APSF2R0ELL102MF08S

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Aluminum - Polymer Capacitors

Aluminum - polymer capacitors are electrical components used to store energy or as filters in power electronics. They are referred to as super capacitors as they have a very high capacitance compared to conventional electrolytic or ceramic capacitors. The technology of these capacitors is relatively new and was developed specifically to meet the requirements of high-power applications.

APSF2R0ELL102MF08S Application Field

The APSF2R0ELL102MF08S is an aluminum - polymer capacitor which has a capacitance of 102 µF and a voltage rating of 2.5 V DC. It is commonly used as a power supply filter, providing high frequency-noise decoupling, and filtering signal noise in switching circuits. As it has a relatively low ESR (Equivalent Series Resistance) and ESL (Equivalent Series Inductance) it is well suited for low impedance applications. It is also popular for use in power converters, voltage regulators and motor drives.

Working Principle

Like traditional capacitors, the aluminum - polymer capacitor works on the principle of storing energy in an electric field between two oppositely charged plates. In this case, the two electrodes consist of a powder aluminum or tantalum core coated with a solid polymer electrolyte. This electrolyte is typically composed of polymers, such as polyvinylidene fluoride (PVDF) or polyethylene oxide (PEO).

The aluminum - polymer capacitor has several advantages over traditional capacitors. It has a capacitance that can be as much as three orders of magnitude larger than conventional electrolytic and ceramic capacitors, with relatively low ESR. It also has ultra low leakage current and can be used with very low impedance applications. As it is a solid-state device, there is no risk of electrolyte leakage.

The aluminum - polymer capacitor also has a wide operating temperature range, up to +85°C, and a long working life, as much as 10000 hours with a lower ESR than conventional capacitors. Furthermore, this type of capacitor is self-healing and does not suffer from degradation due to cycling, as traditional electrolytic and ceramic capacitors do. As a result, this capacitor has fewer reliability issues, and hence is better suitable for long-term use.

Conclusion

The APSF2R0ELL102MF08S aluminum - polymer capacitor is an advanced electrical component which is suitable for a wide range of applications, including filtering noise in switching circuits and providing high frequency-noise decoupling. It has a very high capacitance, low ESR and ESR, wide temperature range and long working life. It does not suffer from degradation, and is hence suitable for long term use in power converters, voltage regulators and motor drives, as well as low impedance applications.

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