940C30S1K-F

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Film Capacitors

A film capacitor is a type of capacitor which uses a thin film of plastic film as the dielectric/insulating layer. It is constructed of two or more parallel metal electrodes, separated by a dielectric film, and mounted on a substrate. The main design parameters when selecting film capacitors are their capacitance, loss factor, tolerance, and working voltage. Film capacitors exhibit excellent performance over a wide range of temperature, voltage, and frequency.

940C30S1K-F application field and working principle

The 940C30S1K-F film capacitor is a high performance radial capacitor with a maximum operating temperature of 85°C, suitable for circuit applications involving extreme temperature fluctuations. The aluminum capacitor consists of three layers, with an anode aluminum foil, a nitrogen-doped polypropylene dielectric, and a protective film coating. The geometry of the capacitor is designed to reduce ESR and self-inductance, while optimizing Q and ESR ratio.

The main working principle of this film capacitor is electrostatic charge storage. The capacitor is formed by depositing metal layers on an insulating substrate with an anode aluminum foil and a protective finished film. The capacitor has a charge storage capacity which is proportional to its size and dielectric strength; hence when a voltage is applied to the metal plates of the capacitor, the electric charge stored on the plates is increased. The amount of current passing through the capacitor is then limited by the capacitance value.

The 940C30S1K-F capacitor is intended for use in various electrical and electronic applications such as power supplies, radio frequency equipment, inverters, and industrial circuits where switching frequencies and current surges require the use of these devices. It has a high capacitance value, a wide operating temperature range from -50°C to +85°C, and can handle a wide range of input voltages.

In addition, this device also features ultra stable electrical characteristics, long service life, and low loss. Its low self-inductance also enables it to avoid temperature rise and to ensure efficient operation even under full load conditions. The high dielectric strength renders the 940C30S1K-F film capacitor ideal for applications that demand high voltage operation.

Overall, the 940C30S1K-F high performance film capacitor is suitable for high-dissipation, high-frequency, long-life applications in demanding conditions, such as motor control and power supplies. Its wide operating temperature range and high dielectric strength make it an ideal choice for power supplies, charging systems, and other applications that require high capacitance, high current, and high voltage.

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