Aluminium Electrolytic Capacitors

An aluminium electrolytic capacitor is an electrical component which uses anodic aluminium oxide as its dielectric material in order to store a charge. It is a type of capacitor which is extensively used in applications such as power supplies, electronic circuits and to filter electromagnetic interference.

B41002A4226M Application Field and Working Principle

The B41002A4226M is a high performance, long-life, radial lead aluminum electrolytic capacitor. It features a combination of very low equivalent series resistance (ESR) and high capacitance stability over a wide temperature range.

This capacitor has a wide range of applications in various fields including power electronics, industrial automation, audio & video equipment, automotive electronics, power supplies and telecommunication equipment. In addition, it is also ideal for wireless and portable devices, due to its low leakage current and low ESR.

The working principle of an electrolytic capacitor is based on the principle of electrochemical action. A thin layer of anodic aluminium oxide is formed on the capacitor plates and acts as the dielectric in the capacitor, allowing it to store a charge.

The electrolyte serves as an ions source, allowing positive ions to pass through the oxide layer when a voltage is applied across the capacitor. This charge is stored in the anodic oxide layer which acts as a storage medium for electrical charges.

The electrolyte inside the capacitor also acts as a conductor, allowing current to flow when the voltage is applied across the capacitor. This current flows through the capacitor and creates an electrostatic field. The electrostatic field created between the two plates of the capacitor is responsible for the capacitance of the capacitor.

The B41002A4226M is a polarized capacitor, meaning that the positive and negative terminals must be connected correctly in order to ensure proper operation of the capacitor. It has a voltage rating of 25V, allowing it to be used in a variety of applications requiring a low-voltage power source.

The B41002A4226M has a wide temperature range from -40°C to +105°C, making it suitable for operation in a variety of environmental conditions. In addition, this capacitor has a long life expectancy of up to 1000 hours at +105°C with over 25,000 hours of life at +85°C.

In conclusion, the B41002A4226M aluminum electrolytic capacitor is a high performance, long-life capacitor that is suitable for a variety of applications such as power electronics, industrial automation, audio & video equipment, automotive electronics, power supplies and telecommunication equipment. Thanks to its combination of low ESR and capacitance stability over a wide temperature range, it is an ideal choice for wireless and portable devices.