MMWA05P33M

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Film capacitors, also known as plastic film capacitors, are capacitors that use plastic film as the dielectric material. Capacitors are generally used in electronic circuits to store energy, filter signals, and protect against transient voltages. The MMWA05P33M is a plastic film capacitor in the Wima MKPX series. It is a polypropylene dielectric film capacitor with capacitance ranging from 0.0033 μF to 33 μF. It is rated for a voltage of 250 VAC and a temperature range of -40°C to +105°C.

Application Fields

Film capacitors are ideal for AC applications due to their high dielectric strength under AC voltage. The MMWA05P33M is designed to be used in a variety of AC voltage applications, including electric motor starting applications, power supplies, general filtering, and many other applications. It is also suitable for use in Class II electronic equipment, including industrial and laboratory appliances.

Working Principle

A film capacitor is a type of capacitor composed of two metal plates separated by a thin dielectric layer. The function of the dielectric layer is to store an electric charge. The dielectric layer is usually made from a polymer film such as polypropylene or polyester. When an AC voltage is applied to the plates, the electric charges are stored by the dielectric, causing an electric field to be created between the two plates. This electric field is proportional to the applied AC voltage. As current passes through the film, the electric field causes ions to move and generate capacitive reactance, which helps to reduce the electrical current.

Conclusion

The MMWA05P33M is a film capacitor designed for AC voltage applications. Its polypropylene dielectric material provides a high dielectric strength and excellent temperature stability, making it ideal for motor start and power supply applications. The capacitor is also suitable for use in Class II electronic equipment. Its working principle also is based on the materials and construction that allow it to store electric energy and reduce current when an AC voltage is applied.

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