FN3258-42-33

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Overview

FN3258-42-33 is a type of power line filter module that helps minimize radiated and conducted noise from switch-mode power supplies. It has several possible applications including AC/DC adapters, power supplies, and electromechanical switches. This article will discuss the application field, and working principle of the FN3258-42-33.

Application Field

FN3258-42-33 power line filter modules work to minimize noise in switch-mode power supplies. These modules are used in a variety of applications including: AC/DC adapters, power supplies, electromechanical switches, and DC/DC converters. Additionally, they are commonly used in medical equipment, industrial automation systems and white-goods.The FN3258-42-33 power line filter module is designed to prevent any conducted disturbances, in the form of conducted currents, on power distribution networks. This reduces harmonic distortions and improves system reliability. Additionally, power line filter modules can reduce and dissipate unwanted conducted and radiated electrical noise from the power supply system.

Working Principle

The FN3258-42-33 power line filter module operates by allowing high frequency (RF) signals to pass through the filter module, while blocking unwanted lower frequency (DC and audio) signals. The filter module consists of two stages: a damping stage and an inductor stage. The damping stage provides wideband, low-impedance noise attenuation. The inductor stage works at specific frequencies and attenuates RF signals in the regulation range.In the damping stage, capacitor C1 and resistor R1 are used to form a low-pass filter. The capacitor C1 shunts the AC (high-frequency) signals to ground, while the resistor R1 limits the current flow. This stage helps attenuate RF signals of different types.In the inductor stage, inductor L1 is used to provide Regulation Noise attenuation. The inductor L1 limits the inductive component of the AC signal, preventing high-frequency signals from passing through.The FN3258-42-33 power line filter module is designed with the correct combination of damping and inductor stages to effectively reduce noise from power supplies. Additionally, the filter module has the ability to operate over a wide range of frequencies.

Conclusion

FN3258-42-33 power line filter modules are used to minimize radiated and conducted noise from switch-mode power supplies. The filter module consists of two stages: a damping stage and an inductor stage. The damping stage provides wideband, low-impedance noise attenuation, while the inductor stage works at specific frequencies to attenuate RF signals in the regulation range. FN3258-42-33 power line filter modules are designed to be used in a variety of applications including: AC/DC adapters, power supplies, electromechanical switches, and DC/DC converters.

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