MKT1818210636W

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Film Capacitors

Film capacitors, otherwise known as plastic film or paper capacitors, are a type of capacitor that use thin plastic films such as polyester, polypropylene, or paper as the dielectric material. These capacitors offer advantages over other types of capacitors due to their superior insulation properties, low temperature coefficients, and long lifetime. Film capacitors are used in a wide range of applications such as signal coupling and filtering, motor start and run capacitors, AC motor control, and ripple current filtering. The MKT1818210636W is a film capacitor, and is used in a variety of applications.

MKT1818210636W

The MKT1818210636W is a film capacitor designed for bridges, power supplies, industrial machine tools, information equipment, radio receivers and other AC circuits. It has a capacitance of 0.047 μF, a temperature coefficient of 5% per K, and a voltage rating of 400V. The capacitor is constructed from two layers of metallized polypropylene film which are rolled and pressurized to form a cylindrical dielectric component. There is a single lead wire connected to the outer dielectric and an aluminum foil connected to the inner dielectric. The capacitor also features two internal insulators which help reduce the stray field and eliminate spark-through.The MKT1818210636W capacitor is designed to handle large amounts of energy, making it suitable for various applications in the medical, industrial, and transportation industries. It is a reliable and efficient component, providing accurate signal filtering and better power management. The capacitor can operate at temperatures up to 85°C and is UL recognized.

Working Principle

Film capacitors have a dielectric component made up of a thin film of plastic. The film is sandwiched between two metal plates. The metal plates are charged with opposite, steady electric fields and the plastic film acts as an insulator between them. The dielectric strength of the film determines how much voltage the capacitor can store without leaking.When a voltage is applied to the capacitor, the electric fields from the plates create an electric field inside the capacitor, thus charging it up. The charge stored in the capacitor is equal to the applied voltage times the capacitance, giving it its “storage” characteristics.Film capacitors are highly stable and can withstand fluctuations in voltage, temperature, and humidity. They can also withstand high frequencies, which makes them ideal for various applications where a low-noise and high-frequency output is required. The MKT1818210636W capacitor is a high quality component that can provide reliable operation.

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