400HFG1800MBN45X80 Datasheet/PDFAluminum Electrolytic Capacitors
400HFG1800MBN45X80 is an aluminum electrolytic capacitor, the most widely used type of capacitor in modern electronics. It is composed of two layers of aluminum foil separated by a thin layer of an oxide film known as the dielectric. The two layers of aluminum are then rolled together to form the capacitor.
The application of aluminum electrolytic capacitors is widespread, ranging from DC-DC converters to power supplies, consumer electronics and industrial control equipment. They are used to decouple signals, filter out AC and DC components, create ripples, and store energy. In general, aluminum electrolytic capacitors are used in applications where cost and size considerations are paramount.
The working principle of aluminum electrolytic capacitors involve the use of an anode and a cathode separated by an electrolytic solution. The anode is typically constructed from a tantalum or aluminum oxide layer, while the cathode is usually constructed from aluminum foil. The electrolyte acts as a dielectric material and acts as an electrical bridge between the two electrodes. When a voltage is applied, the electrolyte breaks down and creates an electric field across the dielectric layer, allowing current to flow between the two electrodes.
As current flows through the capacitor, charges build up on the plates, creating a potential difference or capacitance. This capacitance is determined by the size of the plates, the size of the dielectric layer, and the type of electrolyte used. The capacitance of aluminum electrolytic capacitors can range from 0.1µF to over 200µF.
Aluminum electrolytic capacitors are widely used due to their low cost, small form factor, and excellent performance. They are also relatively low leakage capacitors, making them ideal for filtering and decoupling applications. Additionally, aluminum electrolytic capacitors are relatively long-lived and do not require frequent maintenance.
In conclusion, 400HFG1800MBN45X80 is an aluminum electrolytic capacitor and is widely used in applications where small form factor and cost are of paramount importance. Its working principle involves the use of an anode and a cathode separated by an electrolytic solution, which allows for current to flow between the two electrodes. The capacitance of aluminum electrolytic capacitors can range from 0.1µF to over 200µF and they are relatively low leakage, making them ideal for filtering and decoupling applications.