MKT1817322405W

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Film capacitors, or film dielectric capacitors, are components whose function is to store electrical energy while providing electrical insulation as well. They are widely used in the electrical and electronic sectors, including computer, audio, and television systems. The MKT1817322405W is a film capacitor specifically designed for low voltage applications. It has a low leakage current and is able to tolerate high voltage surges that are up to twice its rated voltage, making it particularly suitable for use in amplifiers, filters, and other circuits that require a reliable form of capacitance.

The main components of a film capacitor are a metal electrode, an insulating material, and a metal-coated dielectric material. The metal electrode is usually an aluminum strip, though other metals can also be used. The insulating material forms a barrier between the electrode and the metal-coated dielectric material, which is a thin electrically-insulating film. The metal-coated dielectric material typically consists of a dielectric material, such as polypropylene or polystyrene, and a metal coating to improve the capacitance. The thickness of the metal coating affects the overall capacitance of the device, as does the dielectric constant of the material and the area of the metal electrodes.

The working principle of a film capacitor is simple. When voltage is applied to the device, an electric field is generated, causing electric charges to accumulate at the electrodes. As a result, a potential difference is created between them, creating an electric field between them. This electric field also causes the dielectric material and metal coating to polarize, resulting in the creation of a capacitor. The amount of electric charge stored in the device depends on the area of the electrodes and the voltage applied to them, as well as the dielectric constant and thickness of the dielectric material.

The MKT1817322405W film capacitor is a special version of the traditional film capacitor. It has an extended temperature range – -40°C to +850°C – and is available in two versions, one with a rated voltage of 250V and another with 400V. It also has a very low nominal leakage current of 0.15μA at 25°C, making it suitable for use in low-noise, high-precision circuits. The capacitor also features low self-inductance, making it suitable for frequency suppression circuits and power supply applications.

The MKT1817322405W film capacitor is a versatile component that can be used in a wide range of low-voltage applications. It has an extended temperature range and a low leakage current, making it suitable for use in audio and television systems, amplifiers, filters, power supplies, and frequency suppression circuits. Its low self-inductance makes it an ideal choice for high-precision circuits that require reliable operation.

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