474PSB252K4R

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Film capacitors, also known as plastic film capacitors, are capacitors with a dielectric made of a thin plastic film. In general, such capacitors have much lower reactance and more continuous voltage capacity than ceramic capacitors, as well as a much lower self-inductance. The 474PSB252K4R plastic film capacitor is a device that uses the dielectric properties of a plastic film to provide a higher voltage capacity than most standard capacitors.

Applications

The 474PSB252K4R plastic film capacitor can be used in many applications, including high-frequency coupling, voltage multipliers, pulse transformation, AC-line filtering, EMC filtering, and in circuit protection. Additionally, these capacitors are commonly used in data and signal processing, switching power supplies, medical electronics, and energy storage or power conversion.

Working Principle

The 474PSB252K4R plastic film capacitor consists of two metal plates. The capacitor is placed between the two metal electrodes, forming a bi-layer charged with the same polarity. The layers are separated by the plastic dielectric film. The film is extremely thin, allowing for low self-inductance and high stability. When a potential difference is applied across the plates, the resulting electric field interacts with the dielectric, creating an electric dipole.This electric dipole results in the establishment of an electrostatic field between the plates. As the voltage across the plates increases, the capacitance of the capacitor increases as well. The capacitance of the capacitor is determined by the material used as the dielectric and the geometry of the device. The 474PSB252K4R plastic film capacitor, due to its dielectric materials, has a high voltage capacity and low losses.

Conclusion

The 474PSB252K4R plastic film capacitor is a device that utilizes the dielectric properties of plastic films to provide higher voltage capacity and lower losses. It is commonly used in applications such as data and signal processing, switching power supplies, medical electronics, energy storage, and power conversion. The 474PSB252K4R features low self-inductance and excellent stability, making it an ideal device for many applications.

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