B32923C3105M289

Film capacitors, also known as stacked capacitors or plastic film capacitors, are made up of a stack of plastic film and aluminum foil electrodes. The B32923C3105M289 is a widely used film capacitor with a rated voltage of 250V DC and a capacitance value of 0.22µF. It is a metallized polypropylene film capacitor, which is non-inductive and self-healing, making it ideal for use in a variety of applications.

Applications: B32923C3105M289 film capacitors can be used in a variety of applications. They are used in power supplies and industrial automation systems to reduce power loss, reduce noise, and suppress electrical interference. The capacitors are also widely used in automotive electrical systems, home theater systems, and audio systems, where they provide reliable power conditioning and filtering. Additionally, they are widely used in high-frequency communication equipment, satellite communication systems, and military communication systems.

Working Principle: The working principle of the B32923C3105M289 film capacitor is based on its construction. The capacitor consists of a stack of plastic film electrodes and aluminum foil electrodes. When an AC voltage is applied across the two electrodes, the film acts as an insulator and prevents the flow of current. Instead, this current is stored in the electric field of the capacitor. This electric field is generated when charges migrate to the inner and outer surfaces of the capacitor dielectric material, creating an electric field. When the applied voltage is removed, the charges migrate back to the electrodes, releasing their stored energy and thus allowing the capacitor to act as a passive filter.

The advantage of film capacitors is that they can handle higher transient voltages than other types of capacitors due to their inherent low inductance. Additionally, they have excellent temperature stability,are self-healing, and are rated for wide operating temperature ranges, making them suitable for a variety of applications. Their relatively low equivalent series resistance (ESR) makes them well-suited for high-frequency applications, while their relatively high ceramic dielectric constant also makes them attractive for applications where size is a factor.

In summary, the B32923C3105M289 film capacitor is widely used because of its unique characteristics. It is an ideal choice for power conditioning and filtering applications, and its excellent temperature stability and self-healing properties make it suitable for a variety of applications. Its relatively low ESR and high ceramic dielectric constant also make it an attractive option for applications where size is a factor.