BFC233920105

Film Capacitors

Film capacitors or plastic film capacitors are electrical components, usually variable or fixed, encapsulated in a plastic film and impregnated with an oil, thus forming dielectric material known as film foil. The initial application of the technology was for audio-frequency and radio-frequency (RF) coupling for decoupling circuits. Modern film capacitors are also used for filter networks, resonators, timing applications, and other similar functions.

BFC233920105 Application Field and Working Principle

The BFC233920105 film capacitor is an ideal choice for high-voltage, high-reliability applications, and offers excellent stability, durability, and low leakage characteristics. It is well suited for RF communication equipment, such as TV receivers, and can be used in both short and medium range communication equipment, such as radar systems. It has a wide range of ratings capable of supporting up to 24,000 volts.

The BFC233920105 film capacitor is designed using a polyester film dielectric that is then coated with a PolyVinyl chloride (PVC) layer. This layer protects the dielectric, ensuring consistent operation and reliability over varying temperature ranges. The two conductive layers are then bonded together via a metal layer that enables the leakage current to flow through the capacitor. The capacitor is then wound tightly on a metal frame, creating the electrodes.

The capacitor’s performance is determined by the dielectric material used, the thickness of the dielectric, the atmosphere it is operating in, and the size of the electrodes. The thicker the dielectric and the larger the electrodes, the higher the capacitance and the lower the resistance. The lower the resistance, the better the stability and reliability.

The BFC233920105 film capacitor is designed for high-voltage and high-reliability applications, and offers excellent stability, durability, and low leakage characteristics. It is well suited for RF communication equipment, such as TV receivers, and can be used in both short and medium range communication equipment, such as radar systems. Capacitors are widely used in many everyday applications, and the BFC233920105 film capacitor is a versatile and reliable choice for professionals and hobbyists alike.