935C2W20K Capacitors

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Film capacitors are an important type of electro-acoustic device used in a wide range of applications to store electrical energy and convert it into acoustical energy. They are formed by winding a thin steel strip over a dielectric film, usually polyethylene or polypropylene. The dielectric film is then laminated to a metal can or formed into a self-supporting structure.

935C2W20K film capacitors are among the most popular types of capacitors, due to their excellent high-temperature performance, high energy-storage capacity, and low series resistance. They are commonly used in a variety of applications, such as radios, televisions, amplifiers, and computers.

The 935C2W20K film capacitor works on the principle of dielectric absorption. This occurs when a voltage is applied across the plates of the capacitor. As voltage is applied, the electric field strength between the plates increases, resulting in the formation of an electron field. The electric field strength is related to the capacitance of the capacitor. As the capacitance increases, the electric field strength decreases, thus reducing the effect of dielectric absorption.

The 935C2W20K film capacitor is particularly useful in applications that require high voltage, high current, long cycle times, or high operating temperature. These capacitors are well-suited for use in power supplies, high frequency amplifiers, constant current rectifiers, and in motor-drive circuits. Additionally, they are highly resistant to voltage surges, and can maintain their capacitance even in extreme temperature environments.

The 935C2W20K film capacitor is also useful for voltage-controlled applications such as sinusoidal waveform synthesis. They can be used as variable resistors to alter the capacitance value, thus altering the waveform of the signal, or to provide variable gain or frequency control. This is done by modulating the alternating current (AC) signal through the capacitance of the capacitor.

The 935C2W20K film capacitor is also often used in electro-magnetic interference (EMI) and electro-magnetic compatibility (EMC) applications. In these applications, the capacitor acts as an interference suppression filter, blocking unwanted high-frequency EMI signals and preventing interference and cross-talk from external sources. The capacitor can also be used to provide filtering, tube dampening, and inter-stage shielding.

In summary, the 935C2W20K film capacitor is a popular choice for many applications that require high voltage, high current, long cycle times, or high operating temperatures. It works on the principle of dielectric absorption, and can be used in power supplies, high-frequency amplifiers, and motor drive circuits. The capacitor is also useful in variable resistor, sinusoidal waveform synthesis, EMI and EMC applications.

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