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Aluminum Electrolytic Capacitors

The 100YXG180MEFCG412.5X25 Aluminum Electrolytic Capacitor is a type of capacitor composed of two solid aluminum foils – an anode and a cathode – separated by a layer of paper saturated with an electrolyte. It exhibits high capacitance versus size and can therefore be used in wide range of applications where high capacitance is needed in a small package.

Application Field

Aluminum electrolytic capacitors are used in all sorts of applications, from filtering and decoupling of digital circuits to power factor correction on AC lines. Furthermore, they are also useful in making tuned circuits and for pulse storage. One area where such capacitors are commonly used is in DC voltage regulation, which requires a combination of a large capacitance and high-working voltage.

Working Principle

The capacitor function is determined by the physical properties of the aluminum foils, which are composed of an anode foil with a layer of anodic oxide, a spacer, and a catode foil. This creates an insulated barrier between the foils, while the electrolyte increases the capacitance by forming a conductive pathway between the foils.

The current flows through the conductive pathway between the anode and the cathode when a voltage is applied between them. This causes the anode to be polarized and increases the capacitance of the capacitor. Inversely, when the voltage is removed, the capacitance is reduced. This property is known as a \'reverse leakage\' and is used to regulate the current flowing in the capacitor.

Conclusion

The 100YXG180MEFCG412.5X25 Aluminum Electrolytic Capacitor is a type of capacitor which is used in a wide range of applications from filtering and decoupling of digital circuits to power factor correction on AC lines. Its small size houses its high capacitance and work-voltage properties. The capacitor works by current flowing through the electrolyte-filled space between the anode and cathode when a voltage is applied, and this causes the capacitance to increase.

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