BFC237021182

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Film capacitors, also known as polyester capacitors, are capacitors whose dielectric is a plastic film such as polyethylene terephthalate (PET). Film capacitors are widely used in consumer electronics and light industrial applications. The BFC237021182 series are film capacitors produced by Vishay Intertechnology. They feature high-temperature performance and make an ideal choice for a variety of application fields.

Application Fields

The BFC237021182 series are most suitable for applications intended for higher temperatures and higher power. These capacitors are specifically designed to operate up to 125°C. They are commonly used in healthcare inverters, home appliances, UPS, audio and computer equipment, lighting systems, industrial motor controls and various other high-power automation devices.

Working Principle

Film capacitors are composed of two metallic plates separated by dielectric material, usually a plastic film. When a voltage is applied across the terminals of the capacitor, positive charges flow to one plate and negative charges flow to the other plate, creating an electric field between the plates. The magnitude of this electric field is proportional to the amount of charge stored on the capacitor.

When alternating currents (AC) are encountered, every half cycle of voltage causes a charge and discharge cycle across the capacitor. This results in fluctuating voltage drops and capacitance values which cause significant losses at higher frequencies. The BFC237021182 uses a self-healing process to prevent this type of voltage loss, making it an ideal choice for applications involving high frequencies.

The BFC237021182 film capacitors also come with a low dissipation factor, meaning less energy is lost when the capacitor is storing charge. This makes them particularly well-suited for audio applications, because the capacitance does not drop significantly at higher frequencies.

Conclusion

The BFC237021182 series film capacitors from Vishay Intertechnology are designed to handle higher temperatures and higher power applications. They feature a self-healing process and low dissipation factor, making them an ideal choice for applications involving high frequencies. These capacitors are commonly used in healthcare inverters, home appliances, UPS, audio and computer equipment, lighting systems, industrial motor control and various other high-power automation devices.

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