ALS81A223NS250

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Aluminum Electrolytic Capacitors

Aluminum electrolytic capacitors are passive components for storing and releasing electrical charges in an electrical circuit. They are used to stabilize the supply voltage in power supplies, smooth the current flow in signal circuits, boost the current in dc motors, and many other specialized applications. In general, aluminum electrolytic capacitors are used as filters, blocking dc signals from passing though, while allowing the ac ones to pass. They can also act as an energy storage device, storing energy as a voltage when their capacitance is charged up, and releasing it back into the circuit when their capacitance is discharged.

The ALS81A223NS250 aluminum electrolytic capacitor is a non-polarized, radial-leaded capacitor with a capacitance value of 250µF, and rated voltage of 16V. It features a temperature range of -40°C to +105°C and an operating temperature range of -25°C to +85°C, and its body is made from aluminum with a plastic insulator.

Application Fields

The ALS81A223NS250 aluminum electrolytic capacitor is most commonly used in circuit applications with high frequency, high current, and low voltage. The most common application of this capacitor is in power supplies such as DC-DC converters, portable charger, and on-board DC/DC converters. Additionally, they are often used in motor drives, UPS systems, AC/DC relay drivers, and phase control circuits, amongst others.

Working Principle

At the core, an aluminum electrolytic capacitor is constructed of two aluminum foils separated by a paper-like material called an electrolyte. The aluminum foils act as the two plates of a traditional capacitor, and the electrolyte serves as an insulator between them. The aluminum foils are electro-polished to increase their surface area, and then wound together and soaked in an electrolyte in order to form a capacitor with a high capacitance value. When an electric voltage is applied, electrical charges are transferred between the two plates and stored in the electrolyte material.

Unlike other types of capacitors, aluminum electrolytic capacitors have a negative charge on one of the two plates. This charge polarizes the capacitor so that it will produce a larger capacitance value than a capacitor of the same physical size without the polarized charge. This polarization also ensures that the electric current will only flow one way through the capacitor, which is required in order to achieve the desired filtering effects on the electric signal.

Conclusion

The ALS81A223NS250 aluminum electrolytic capacitor is a non-polarized, radial-leaded capacitor with a capacitance value of 250µF and rated voltage of 16V. It is most commonly used in circuit applications with high frequency, high current, and low voltage, such as power supplies, motor drives, UPS systems, AC/DC relay drivers, and phase control circuits. Additionally, its polarized charge allows it to filter electric signals and provide greater capacitance value than an unpolarized capacitor of the same physical size.

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