ALS80A822DF100

Aluminum Electrolytic Capacitors

Aluminum electrolytic capacitors, referred to as electrolytic capacitors, are polarized capacitors in which a metal oxide layer acts as the dielectric medium. In addition to being used for conventional low-voltage and direct-current applications, aluminum electrolytic capacitors have also been applied in many alternating-current systems in which their high-ripple current capabilities are found to be advantageous.

The ALS80A822DF100 aluminum electrolytic capacitor is a miniaturized, high-rippled, surface-mount type capacitor with a voltage rating of 10V and capacitance of 1.2µF. Its anodic oxide layer is formed on a material that can etch and form a metal film, commonly known as aluminum foil. It is then rolled into a cylindrical shape, and filled with an electrolytic solution, with aluminum foil as the positive electrode and metal as the negative electrode. This type of capacitor has very small dimensions, light weight, and small series resistance.

The ALS80A822DF100 aluminum electrolytic capacitor is typically used as a decoupling capacitor for power supply circuits in industrial equipment, such as digital cameras, computers, and portable video players. Its high-ripple current capability makes it a good choice for applications such as switching power supplies, low-noise circuits, low-frequency sinusoidal oscillators, and high-fidelity amplifiers. The capacitor can also be used in applications such as speaker protection, interference suppression, and voltage tempering.

The working principle of an aluminum electrolytic capacitor is relatively simple. When a negative voltage is applied, the oxide layer formed on the aluminum foil attracts and collects positive ions, which occupy the space between the anode and the electrolytic solution. These positive ions form a barrier, which prevents electrons from entering the anode. When a positive voltage is applied, electrons pass through the oxide layer and are attracted to the positive ions, forming a complete electrical circuit. The number of ions that can travel between the anode and the cathode is proportional to the magnitude of the applied voltage, resulting in an increase in capacitance. The capacitance of the capacitor increases with the thickness of the oxide layer and the area of the aluminum foil.

In summary, ALS80A822DF100 aluminum electrolytic capacitors are miniature, high-ripple current, surface-mount type capacitors with a voltage rating of 10V and capacitance of 1.2µF, and are commonly used as decoupling capacitors for power supply circuits in industrial equipment. The working principle of the capacitor involves attracting and collecting positive ions to form an oxide layer, and then allowing electrons to pass through the oxide layer, resulting in an increase in capacitance.