B25620B1117K981

Film Capacitors

A film capacitor is an electronic device composed of two metal plates separated by a thin, dielectric film material, such as polyester, polypropylene or polyethylene. It is a non-polarized electrical component which can store energy in its electrical fields. Film capacitors are most commonly used as circuit elements to compensate for the characteristics of other electronic components and provide stability to the circuit.

B25620B1117K981 Application Field and Working Principle

The B25620B1117K981 film capacitor is a non-polarized, multilayer, polypropylene film capacitor with a wide variety of uses in electronic circuits. The advantages of the B25620B1117K981 include its low equivalent series resistance (ESR), wide operating temperature range (-25 to +85°C), and high stability. It is suitable for applications as both filters and decoupling capacitors.

The functioning of a film capacitor is based on the dielectric properties of the thin insulating layer between the two metal plates of the capacitor. When a voltage is applied to the capacitor, electrical current flows from one plate to the other, resulting in a charge difference between the plates. The dielectric layer prevents the flow of current while permitting the field induced by the charge difference to remain for a certain period of time.

The B25620B1117K981 is well suited for circuits requiring high stability, such as power supplies, where its low equivalent series resistance is critical. Its wide operating temperature range also makes it ideal for automotive and other applications, where the device must function in varying ambient conditions. In addition, it serves as a filter for high frequency signals, and can also be used as a decoupling capacitor in high frequency switching applications.

In summary, the B25620B1117K981 film capacitor is a multilayer, non-polarized electrical component which offers a wide range of advantages for use in electronic applications. It offers low equivalent series resistance, stable performance over a wide temperature range, and good filtering and decoupling properties.