UPW1J331MHD1TO Capacitors

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Aluminum Electrolytic Capacitors

Aluminum electrolytic capacitors are packages of energy storage elements commonly found in cradles, power supplies, amplifiers and circuit boards used in a variety of applications. The unit is made up of two aluminum plates and a conductive gel that acts as an electrolyte. When a voltage is applied, the positive plate is charged while the negative plate discharges. There are two application fields for aluminum electrolytic capacitors, smoothing capacity and filtering.

Smoothing capacity

Smoothing capacitors are used to provide a low impedance and even out alternating current ripple voltages. The capacitors are used in power supplies to provide power to those components demand a smooth, steady and continuous voltage. Two capacitors in a series combination can provide the smoothing capacity. The first capacitor is charged to a higher voltage level by the rectifier and then the second capacitor takes over and provides the ripple-free voltage to the load.

Filtering

The second application field for aluminum electrolytic capacitors is filtering. Filtering capacitors are used to remove high frequency signals from an electrical circuit. The capacitors store energy and then discharge it slowly and evenly, thus limiting the voltage and current levels in the circuit and protecting sensitive components from damaging voltages. Utilizing two capacitors in a series helps provide a better filtering than just one capacitor, as it works as an extra stage of filtration, providing a more precise voltage.

Working Principle

The working principle of aluminum electrolytic capacitors is based on the principle of electrostatics. The combination of two aluminum plates, separated from each other by an electrolyte, acts as a capacitor and stores electrical energy upon application of potential. The aluminum plates, because of the electrolyte, act as a dielectric, or insulator, thus no current is allowed to flow between them, only an electric field is generated. The capacity of the capacitor is determined by the ratio of the surface areas of the plates and the thickness of the electrolyte.

UPW1J331MHD1TO Application Field and Working Principle

The UPW1J331MHD1TO aluminum electrolytic capacitor is used primarily for smoothing and filtering applications. The main function of UPW1J331MHD1TO is to provide a low impedance and reduce the ripple voltage of an alternating current. When a voltage is applied, the positive plate is charged while the negative plate is discharged. The capacitance of this capacitor is determined by the ratio of the surface areas of the plates and the thickness of the electrolyte. UPW1J331MHD1TO capacitors can be used in a variety of applications, from amplifiers to circuit boards.

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