BFC238662224

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Film Capacitors

Film capacitors (also known as plastic film capacitors, or dielectric film capacitors) are passive components, commonly used in electronic circuits for blocking direct current, filtering signals, tuning, and across-the-line power factor correction. The BFC238662224 series film capacitors are small, high-performance, reliable AC/DC power film capacitors with 180-degree screw terminal and threaded holes, capable of meeting a wide range of requirements for signal circuits and general power supplies.

Application

BFC238662224 capacitors are ideally suited for a wide variety of applications, including power factor correction, voltage surge control, current surge control, noise filtering, resonance suppression, AC isolation, power supply bypass, and interference suppression. They are used in switch mode power supplies, industrial power supplies, frequency converters, lighting ballasts, medical electronic equipment, electronic ballasts, servo amplifiers, field buses, displays, etc.

Advantages

Due to their high temperature stability, wide operating temperature range, excellent electrical and mechanical performance, and high reliability, BFC238662224 capacitors are popular with designers.

• High power density, wide operating temperature range of -40℃ - +105℃
• High insulation resistance, up to 2000V AC
• High stability, low equivalent series inductance and low equivalent series resistance
• High reliability, very low leakage current and high peak current capability
• Excellent self-healing properties, with no damage to the chassis
• Wide capacitance range of 0.47uF to 0.047uF

Working Principle

A film capacitor is essentially a combination of two insulation layers (the dielectric film and the electrode), constructed in a compact and small form factor. The dielectric film is made from polypropylene, polyester, polycarbonate, or polyethylene terephthalate, while the electrodes are constructed using aluminum, tantalum, or titanium. The dielectric film and electrodes are rolled together to form the capacitor, with the dielectric film acting as an insulator between them. When a voltage is applied to the electrodes, an electric field is created across the dielectric film, which then stores electrical energy in the form of an electric field.

The electric field is concentrated near the edges of the electrodes and the dielectric film, resulting in a relatively low external electric field. This makes BFC238662224 capacitors less prone to electromechanical issues, such as resonance, and more reliable in harsh environments, such as high-noise industrial applications. In addition, the electrodes are insulated from one another, preventing the capacitance from decreasing over time and ensuring a long service life.

Conclusion

BFC238662224 film capacitors offer outstanding electrical performance, reliable operation, a wide operating temperature range, and a long service life thanks to their superior insulation properties and self-healing capabilities. They are ideal for a variety of applications, from power factor correctors to signal filtering and noise suppression, and are highly reliable and energy efficient components.

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