BFC233829081

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Film Capacitors

Film capacitors, often referred to as insulated capacitors, are a type of capacitors that uses thin film dielectric material to increase capacitance. The film capacitors use dielectric films as insulation, which offer higher capacitance and stability compared to regular electrolytic capacitors and ceramic capacitors. The BFC233829081 is a film capacitor manufactured by Bondtech Corporation, a leading manufacturer of capacitors.

Application Field

Film capacitors are used primarily in electronics and telecommunications applications such as DC-DC converters, power supplies, oscillators, switch mode power supplies, and signal conditioning circuits. The BFC233829081 is specified for industrial, medical, and telecom applications where a film capacitor with a long operational life and a high capacitance is needed.

Features

The BFC233829081 utilizes a special process that provides low ESR and ESL, high frequency stability, and high heat resistance. The design enables high capacitance capacity over the operational life. It is a three-terminal electrolytic capacitor with metal-on-film construction in a surface mount package. The component provides a reliable seal of the electrolyte for improved long-term reliability. The capacitor is constructed of PET film and aluminum foil as the dielectric and electrodes, respectively. The aluminum foil provides excellent adhesion between the film and the top electrode. The ESR is extremely low, which makes the capacitor suitable for high frequency applications such as DC-DC converters and switch mode power supplies.

Working Principle

The BFC233829081 makes use of an internal dielectric layer to provide a low dielectric loss and high stability at high frequencies. The components operate using the principle of electrostriction. The charge on the surface of the dielectric changes when an electric field is applied, causing a distortion of the molecules in regions closest to the electrodes. This causes the dielectric to become polarized, increasing the electrostatic field and allowing electric current to move between the two electrodes. The current is then stored or discharged to the external circuit, depending on the design and operation of the component.

Conclusion

The BFC233829081 is a film capacitor designed for high-frequency circuits and applications such as DC-DC converters and switch mode power supplies. It features a three-terminal design, and utilizes a dielectric layer to provide low ESR and ESL, high frequency stability, and high heat resistance. The capacitor makes use of the principle of electrostriction to convert electric energy into mechanical energy, which is then stored or discharged to the external circuit. This makes the film capacitor an ideal choice for use in high-frequency circuits that require long-term reliable performance.

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