UPS2F221MRD

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Aluminum Electrolytic Capacitors

UPS2F221MRD are general purpose, miniaturized aluminum electrolytic capacitors that offer an effective solution to many higher voltage applications.

An aluminum electrolytic capacitor is an electronic component composed of two aluminum foils with an insulating aluminum oxide film between them and a liquid or solid electrolyte as the second electrode. It is a passive component and its capacity can range from a few microfarads up to thousands and millions of microfarads.

Applications

Aluminum electrolytic capacitors are commonly used for energy storage, signal coupling, signal filtering and timing applications. One of their key focuses is high capacitance and high temperature operating range.

UPS2F221MRD capacitors are used in automotive and industrial applications, in aircraft systems and in consumer electronics. They are designed to take up minimal space within circuits, making them perfect for smart handsets, automotive data buses, telecommunications, computers and servers.

Working Principle

The working of an aluminum electrolytic capacitor is based on the Faraday’s Law of Electrolysis. When a voltage is applied to the two plates of the component, a dielectric layer forms around the plate on the side of the electrolyte facing the anode. This dielectric layer increases the capacitance and construction of the capacitor. As the current passes between the two plates, an electrical field is created that is proportional to the charge and the capacitance of the component. This electrical field can store energy for later release, creating a capacitive effect.

The capacitance of an aluminum electrolytic capacitor is a function of the size of the molecules within the electrolyte, the distance between the plates, the thickness of the dielectric layer, and the voltage applied across the component. The voltage changes over time, resulting in a dynamic capacitance.

The high capacitance, low profile, and relatively high voltage at which these capacitors can operate make them ideal for high frequency filters and voltage stabilizers, as well as power backups. The anode of the capacitor is usually made of an aluminum foil, while the cathode is usually an activated liquid or solid electrolyte.

Conclusion

UPS2F221MRD aluminum electrolytic capacitors offer a high capacitance and large temperature operating range. They are designed to take up small space within circuits and are commonly used for energy storage, signal coupling, signal filtering, and timing applications. They are ideal for high frequency filters, voltage stabilizers, and power backups.

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