BFC246861155

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Film Capacitors

A film capacitor, also known as a plastic capacitor, is a type of capacitor commonly used in high-frequency applications. Unlike ceramic capacitors and electrolytic capacitors, film capacitors are self-healing and have a longer life-span. Additionally, they are available in a variety of different voltage and temperature ratings.

The BFC246861155 is a type of film capacitor that is commonly used in RF applications. It is designed with an insulated metallized polyester film dielectric and is capable of withstanding temperatures up to 125°C.

Applications

The BFC246861155 is widely used in radio-frequency (RF) applications such as telecommunications, cable television, satellite systems, military, automotive, and avionics. It is also ideal for use in high-power digital equipment, electronic ballasts, active filter applications, networking, and audio applications.

Working Principle

A film capacitor operates on the principle of electrostatic attraction between conductive surfaces. These surfaces are separated by a thin dielectric layer, typically a plastic film. When a voltage is applied across the conductors, electrostatic attraction and repulsion cause an electric field to form between them. This electric field stores electrical energy in the form of the capacitor’s electrical field and is responsible for the capacitor’s ability to store energy.

The BFC246861155 is constructed of an insulated metallized polyester film dielectric with a 1.0mm spacing. The capacitor exhibits a low ESR resistance and allows for high voltage rating up to 100Vdc. Additionally, the capacitor offers excellent high-frequency performance and is capable of withstanding temperatures up to 125°C.

Advantages

Film capacitors offer numerous advantages over other types of capacitors. For example, they are self-healing, meaning that in the event of an imbalance, the capacitor is able to realign itself and function again. Additionally, film capacitors have a long life-span and are available in a variety of temperature and voltage ratings. Finally, they have low DF (dissipation factor) values, making them ideal for high-frequency applications.

Disadvantages

The major disadvantage of film capacitors is their limited capacitance value. Unlike ceramic and electrolytic capacitors, film capacitors have lower capacitance values, making them less suitable for applications requiring large amounts of capacitance. Additionally, they are susceptible to damage from mechanical shock, vibration, and environmental factors such as moisture and humidity.

Conclusion

The BFC246861155 is a type of film capacitor that is commonly used in RF applications. It is designed with an insulated metallized polyester film dielectric and is capable of withstanding temperatures up to 125°C. It offers numerous advantages including low ESR, long life-span, and high frequency performance. However, it does have some disadvantages such as limited capacitance value and susceptibility to damage from mechanical shock and environmental factors.

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