B32529D3224M289

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Film Capacitors

Film capacitors, also known as plastic film capacitors or dielectric film capacitors, are types of capacitors. They are formed when two conductive plates are separated by a dielectric film, typically made from polyester, polycarbonate, polypropylene, or polystyrene. They are characterized by their compact size, low cost, high reliability, and long-term stability.

The B32529D3224M289 is a type of film capacitor with a maximum capacitance of 0.1 μF, a rated voltage of 250V, and a permissible ripple current of 0.3A RMS. It is designed to be used in signal-line-interference suppression, EMI/RFI filtering, and noise filtering applications.

Application Field

The B32529D3224M289 is a multi-purpose capacitor that is well-suited for a variety of applications. It is commonly used in electronic equipment, such as TV sets, radiograms, and car audio systems, as a snubber circuit component for suppressing electrical surges. It may also be used as a filter for both AC and DC circuits for removing transient noise and interference.

In addition, the B32529D3224M289 can be found in power supplies, transformers, converter circuits, and even LED lighting circuits. Due to its excellent dielectric strength, it is also being used in various automotive and industrial applications such as speed controllers and voltage regulators.

Working Principle

A film capacitor works by storing energy in its dielectric material. The dielectric material is an insulating material that does not allow electricity to leap across the plates, even if a voltage is applied across it. This is why it is often referred to as a non-conductive material.

When a voltage is applied across the capacitor plates, a current flows through the capacitor in a direction opposite to the applied voltage. This current creates an electric field that attracts opposite charges on the dielectric film and arc through it, forming a dielectric layer on top of the plates. This dielectric layer causes the current to be blocked, so that the capacitor remains charged for the duration of the applied voltage.

In addition, the dielectric field created by the capacitor also serves to decrease the circuit’s impedance. The capacitors’ impedance drops as the frequency increases, allowing it to act as a filter and reduce high-frequency noise.

Conclusion

The B32529D3224M289 is a multi-purpose film capacitor that is well-suited for a variety of applications. It is designed to be used in signal-line-interference suppression, EMI/RFI filtering, and noise filtering applications, and is often found in power supplies, transformers, converter circuits, and even LED lighting circuits. It works by storing energy in its dielectric material and forming a dielectric layer on top of the plates when a voltage is applied. Additionally, its impedance also drops as the frequency increases, allowing it to act as a filter and reduce high-frequency noise.

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