UCW1E471MNL1GS Datasheet/PDFAluminum Electrolytic Capacitors
Aluminum electrolytic capacitors are one of the most commonly used capacitor types, due to their high capacitance values, low costs and wide temperature ranges. UCW1E471MNL1GS capacitors are aluminum electrolytic capacitors designed for high ripple current and low impedance. They are typically used in DC-DC converters and AC-DC power supplies.
Applications
UCW1E471MNL1GS capacitors are ideal for applications requiring large ripple currents and low ESR values. They are most commonly used in DC-DC converters and other AC-DC power supplies. As aluminum electrolytic capacitors, they are also perfect for use in consumer electronics, telecommunication equipment, and other applications where long life and low impedance are desired.
Working Principle
UCW1E471MNL1GS capacitors work on the principle of an electrolytic solution placed between two metal plates, or electrodes. When electric current is applied to the capacitors, the chemical reaction between the electrolyte and the electrode causes the deposition of aluminum ions on the positive electrode and oxygen ions on the negative electrode. This forms a layer of dielectric material between the two electrodes, that is highly conducting, allowing charge to travel freely between the capacitor’s plates.
The chemical reaction between the electrolyte and the electrodes also increases the capacitance of the capacitor exponentially. This means that for a given capacitance, the capacitance can increase significantly if the temperature of the electrolyte rises. The low ESR values obtained by using aluminum electrolytic capacitors make them an ideal choice for applications requiring large ripple currents.
Because of the electrolytic reaction between the electrolyte and the electrodes, UCW1E471MNL1GS capacitors will degrade over time and must be replaced periodically in order to retain high capacitance values.
Conclusion
UCW1E471MNL1GS capacitors are aluminum electrolytic capacitors designed for high ripple current and low impedance applications. Their wide temperature range and high capacitance values make them ideal for use in DC-DC converters, AC-DC power supplies, consumer electronic and telecommunication equipment. The electrolytic mechanism of their working principle allows for the exponential increase of capacitance, but also causes their degradation over time.