942C8P47K-F

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Film capacitors are AC capacitors with a capacitance over 10nF and a voltage capability up to 600V. Film capacitors are usually used in power supply applications, such as snubbers and isolation, transient suppression, uninterruptible power supplies, and DC filters. The 942C8P47K-F is the latest high performance polypropylene film capacitor, designed to provide superior noise suppression and filtering over a wide range of frequencies.

Application Field

The 942C8P47K-F film capacitor has been designed for use in high-frequency applications such as AC motor drives, power inverters, switch mode power supplies, surge protection, and high voltage DC blocking. It features a high level of performance, reliability, and durability for applications requiring high-speed switching, current waveforms, and electrical noise sources.

Due to its low ESR values, the 942C8P47K-F is an ideal choice for applications with high ripple currents and fast switching. Its low dissipation factor allows it to maintain a high-performance level over a wide temperature range. The 942C8P47K-F is also highly recommended for use in audio applications, including loudspeaker crossover networks, audio preamps, and other distortion-sensitive applications.

Working Principle

Film capacitors are made up of thin plastic films that are either impregnated with a thin, non-conductive dielectric material or covered with metal layers. These plastic films form the dielectric layer between the two metal plates that form the capacitor structure. The metal layers are typically connected to one side of the plastic and allowed to move relative to each other. When a voltage is applied to the capacitor, the charges on the metal plates create an electric field that causes the plates to shift and create a capacitive reactance. By controlling the width of the plastic, the metal layers, and the thickness of the dielectric, manufacturers are able to control the capacitance and electrical properties of the film capacitor.

The 942C8P47K-F film capacitor uses a combination of high-temperature polypropylene and metallized construction to provide superior performance and reliability. The combination of the polypropylene film and the foil construction provides a durable and flexible structure that resists dielectric breakdown. The capacitor is also designed to maintain a low ESR and DF for use in high-frequency applications.

The 942C8P47K-F also comes with a self-healing design, which protects the capacitor’s integrity even when exposed to overvoltages. The self-healing points are sealed in a reliable epoxy package to ensure consistent performance and prevent damage to the device.

The 942C8P47K-F is a reliable and robust solution for high-performance applications that require variable frequency, surges, and electrical noise. Its combination of low ESR and DF, excellent ripple handling, and superior self-healing make it an ideal choice for a wide range of applications.

Conclusion

The 942C8P47K-F is a high-performance film capacitor that is designed for use in applications requiring high-frequency switching, current waveforms, and electrical noise sources. Its combination of polypropylene film construction, self-healing design, and low ESR make it ideal for applications such as motor drives, power inverters, switch mode power supplies, and surge protection.

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