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Film Capacitors

Film capacitors, also known as foil capacitors, film dielectric capacitors or plastic film capacitors, are constructed with a film dielectric between two metal plates. The metal surfaces are commonly aluminum or zinc while the film can be made of polyester, polycarbonate, polystyrene or other plastic films.

BFC237540112 application field and working principle

The BFC237540112 film capacitor is a Class 1 polypropylene capacitor and is suitable for high voltage and high dielectric applications. It is mainly used in high frequency applications such as motor drives, inverter circuits, switching power supplies, and communication circuits. Other applications include power supplies, power factor correction and surge suppression.

The BFC237540112 film capacitor is a polarized capacitor and is constructed using a metallized polypropylene film and high-grade back foil. The two metal layers are separated by the dielectric and dipped together in adhesive which keeps them at a fixed distance from each other. The metal layers also serve as the capacitor’s terminals.

The film dielectric used in the BFC237540112 capacitor is a high performance polymer film. It is characterized by its low dielectric absorption, low temperature coefficient, and high capacitance retention over a wide temperature range. The high-grade back foil improves the leakage current and self-healing characteristics of the film, giving it high capacitance stability.

The BFC237540112 capacitor has a voltage rating of up to 30 kilovolts and has a strong electrical strength. It has a high insulation resistance, excellent electrical properties, high dissipation factor, and low dielectric absorption. Its temperature range is -40 to +85 °C, making it suitable for most high voltage applications.

In conclusion, the BFC237540112 film capacitor has a high voltage rating and excellent electrical properties for a variety of high frequency applications. Its robust design gives it high capacitance stability and a robust performance in harsh working conditions. The capacitor’s wide temperature range also makes it suitable for most high voltage applications.

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