474MMR400K

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Film capacitors are a type of capacitor that utilize a thin plastic film as the dielectric. This thin film helps to increase the capacitor’s ability to store energy, enabling them to have a wide range of applications in almost all types of industries. The 474MMR400K film capacitor offers superior current carrying capacity, higher working frequencies, greater stability, increased reliability, and long lifetime performance that makes it ideal for use in a number of different industrial applications.

The 474MMR400K is a general-purpose medium power film capacitor with a wide range of applications. This type of capacitor’s working temperature range is -55°C to +125°C, and it offers a maximum working voltage of 400 volts. The rated closed limit of 474MMR400K is 4 A with a maximum ripple current of 31 A when operated at 120 Hz. Furthermore, this capacitor offers a low ESR that is between 0.07Ω and 0.45Ω.

These types of film capacitors are used in various switching power supplies, AC/DC filters, filtering circuits, resonant circuits, amplifiers and various audio processing circuits where smaller sizes and high capacitance stability are required. The use of 474MMR400K film capacitors in the power-supply circuit of high end video cards have allowed them to have high current and voltage stability. This type of capacitor is also often used in many communication and municipal projects due to their excellent temperature stability, electrical stability, and their resistance to harsh environments.

The 474MMR400K film capacitor works by storing an electric charge between two electrodes on a thin, dielectric film. When a voltage is applied to the capacitor, electrons are attracted to the electrodes and an electric field is established in the dielectric film between them. This electric field stores the electrical energy, which is then released into the circuit when the voltage is removed.

The core of the capacitor is made from a metallized polyester film that acts as the dielectric. This dielectric is a thin layer of insulating material with a conducting layer on both sides. The conducting layers are made of aluminum and are bonded to the dielectric film. This creates two electrodes to which a voltage can be applied. The capacitor is then sealed using thermoplastic plastic so that the internal components remain secure and insulated.

The 474MMR400K film capacitor is an ideal choice for a number of industrial applications due to its superior performance features, such as a wider temperature range, increased current carrying capacity, and higher working frequencies. Additionally, its low ESR, increased reliability, and long lifetime performance make this capacitor an ideal practical solution for many projects.

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