UMW1V220MDD

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Aluminum Electrolytic Capacitors

Aluminum electrolytic capacitors are passive two-terminal devices which store electrical energy in an electrical field. They are made up of two layers of aluminum foil separated by a paper or plastic dielectric. The foil is typically rolled into a cylinder and the terminals are soldered at either end, forming an electrical connection. One of the terminals is often connected to an anode or positive terminal, the other is the cathode or negative terminal. In order for proper functioning, the electrolytic capacitor must contain an electrolyte, which is an ionic solution, typically sodium sulfate or ethylene glycol.

UMW1V220MDD application field and working principle

The UMW1V220MDD is an ideal choice for power medical systems, instrumentation, and automotive applications. Not only does it provide excellent volumetric efficiency, which is important in many systems, but it also offers excellent reliability with long life and low leakage current. The capacitor combines three distinct technologies – electrolytic, solid dielectric, and dual-layer wet tantalum. This combination provides a high-voltage long-life capacitor with low ESR and low parasitic capacitance for superior performance. The capacitor is constructed using a solid multi-layer dielectric and a double layer tantalum wet construction, which is then sealed in an aluminum canister.

The working principle of the UMW1V220MDD can be summarized as follows. Electrical energy is stored in the electrical field between the two aluminum foil plates of the capacitor. The paper or dielectric is created by a chemical coating on the foil plates that enables the plates to retain charge. The electrolyte provides an ionic medium that enables the current to flow through the capacitor. When a voltage is applied, the ions in the electrolyte move through the capacitor, resulting in an electric field that allows the capacitor to store charge. This stored charge is then released when the capacitor is discharged.

The UMW1V220MDD is a reliable and long lasting capacitor that can be used in a wide range of applications. Its combination of differing technologies offers exceptionally low internal resistance, low parasitic capacitance, and high stability and voltage capability. With its excellent volumetric efficiency, the UMW1V220MDD is an ideal choice for many medical, instrumentation, and automotive applications.

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