Film Capacitors

155PSB102K4J is one of the most popular film capacitors currently on the market. Film capacitors refer to capacitors that use synthetic film as the medium for storing charge. They are renowned for their exceptional electrical characteristics, which is why they have been widely used in a broad range of applications.

Application Field

Film capacitors have different types of metallic films, including polyester, polypropylene, polystyrene, etc. Depending on the application, designers can choose the type of film best suited for the task. They usually feature low dielectric losses, ensuring superior performance in applications such as decoupling, filtering, suppression, bypassing, etc. As a result, film capacitors are highly popular in a variety of consumer electronics, including TVs, radios, computers, mobile phones, and so on.

Working Principle

As a type of dielectric, the operation of film capacitors follows the same principles as regular capacitors. They are made up of two metallic plates and a dielectric material in between them. The electrodes are made of a conductive material, while the dielectric is a non-conductive material such as film. When the two plates are connected to an electric current, a voltage is applied to the medium, creating an electric field. This electric field causes the charge to build up on the plates, forming a capacitance with its associated dielectric properties. The voltage-dependence of these properties makes film capacitors an ideal choice for high- frequency circuits where the dielectric absorption and discharge rate are important.

As a result, film capacitors tend to be preferred for medium to high-voltage applications due to their superior performance over traditional capacitors. Their low losses also make them suitable for applications such as functional bypassing, filtering, and AC coupling, often in combination with other types of capacitors. Therefore, they have found extensive use in a wide array of industries ranging from communications to automotive engineering.

Conclusion

In conclusion, 155PSB102K4J film capacitors are typically used in a broad range of applications due to their superior electrical characteristics. It has a low dielectric loss, high breakdown voltage, and excellent temperature stability, making it an ideal choice for medium to high-voltage applications. As a result, it is widely used in consumer electronics, automotive engineering, and numerous other industries.