UPS2V221MRD

Aluminum Electrolytic Capacitors

An aluminum electrolytic capacitor is a type of capacitor that uses an electrolyte, usually a damp or wet solid, as one of its plates to achieve higher capacitance than other types. These capacitors are widely used in electronic circuits because of their high capacitance density and low cost. The UPS2V221MRD is a particular type of aluminum electrolytic capacitor with particular characteristics.

UPS2V221MRD application field

The UPS2V221MRD is mainly used in applications where high capacitance density is required, such as in power supplies, DC to DC converters, and motor control applications. The capacitor is specifically designed to provide superior performance in a wide range of environments including high temperature, high capacitance, and high voltage applications. The capacitor is also well-suited for ruggedized applications where extreme conditions can cause damage and reduce performance. For example, exposure to high temperatures, vibration, and shock may render traditional electrochemical capacitors susceptible to failure.

UPS2V221MRD working principle

The UPS2V221MRD utilizes an anodized aluminum double-side-exposed electrolytic construction to achieve higher capacitance values in a very small package. The anodized aluminum plates are etched in order to provide the needed surface area for the electrolyte to absorb and to create a high density for the needed capacitance. The two cores are then assembled with a separator and two springs to provide the required single peak capacitance. The springs also allow current to flow between the two plates.

The two plates are then immersed in a liquid electrolyte. The electrolyte is a saturated solution of Potassium hydroxide (KOH) in Deionized water. This saturated solution provides the needed conductivity to allow current to flow through the contacts of the two plates, charging them with the required capacitance. Finally, thecapacitor is sealed with an epoxy or ceramic composite to protect it from moisture, dust, and other contaminants, while allowing some gas exchange to occur to help dissipate heat.

Overall, the UPS2V221MRD aluminum electrolytic capacitor is an ideal solution for applications requiring a high capacitance density. Its anodized aluminum plates, double-side-exposed-electrolytic construction, and KOH-based electrolyte allow it to provide exceptional performance in a wide range of environments, making it a great choice for power supplies, DC to DC converters, and motor control applications.