MMWA2P47K-F

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Film capacitors are very common in virtually every corner of the electronics industry. Capacitors store energy and can be found in varying levels in all types of electronic devices and circuits, from low-power audio amplifiers to high-end industrial tools. Today’s films are optimized for use in demanding applications and provide superior performance characteristics like higher capacitance values, improved dielectric strength, high temperature stability and higher maximum operating temperatures. The MMWA2P47K-F series film capacitor is just one example of these highly reliable, high-performance film capacitors.

Application Field

The MMWA2P47K-F film capacitor is specifically designed to provide very high capacitance levels and low ESR can be applied to high-current commutation or filtering of power supplies and appliances. The capacitor features a long useful life for high reliability and consistent performance, making it suitable for use in a variety of industrial applications including portable and transportable power supplies, white goods, audio equipment, and office and home appliances. The capacitor is suitable for use in harsh environments, since it has high temperature stability, wide operating temperatures and excellent sealing resistance.

Working Principle

The MMWA2P47K-F film capacitor is constructed of two metalized polypropylene film layers with an electrolyte solution in between them to create a dielectric, or electrostatic field, between the metalized films. This electrostatic field is capable of storing electrical energy and releasing it as needed. When a voltage is applied to the capacitor, a current is established and an electrical field is created between the electrodes. This electrical field creates a new surface charge on the metalized polypropylene films and a positive and negative polarization is established in the dielectric. The capacitor is designed to hold a static charge as the voltage is changed, allowing it to retain its stored energy.

The MMWA2P47K-F film capacitor also has an ESR rating, which indicates the equivalent series resistance or losses in the capacitor due to its design. A lower ESR rating gives the capacitor greater effectiveness in higher frequency applications as it will be able to dissipate the energy more quickly. It also uses a voltage and temperature derating factor to ensure it will perform reliably in very demanding environments.

The MMWA2P47K-F film capacitor is one of the most reliable and versatile capacitors currently on the market. It is designed for use in a wide variety of applications such as power supplies, white goods, audio equipment and office and home appliances. It offers high levels of capacitance with low ESR and a wide operating temperature range, making it ideal for use in harsh environments. Its long useful life and consistent performance makes it ideal for a variety of industrial applications.

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