FN258HV-30-33

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Power Line Filter Modules are designed to provide multiple levels of filtering in order to reduce EMI emissions from AC and/or DC electrical systems. The FN258HV-30-33 is one of the most suitable line filter modules for industrial applications. With its high frequency, this module can offer enhanced noise reduction for power supply circuits, and can provide maximum protection against voltage dips and EMI transients.

The FN258HV-30-33 is a three-stage high-voltage power line filter module, made up of three sections - a filter inductor, a filter capacitor, and a filtering resistor. The three stages are connected in series, providing an excellent filtering capability for power lines from 30-33V. Each stage is used to provide a different level of filtering for EMI and RF noise emissions.

The filter inductor is responsible for attenuating differential and common mode conducted noise. It is designed to absorb high frequency noise and reduce the level of noise transmitted into the power circuit. The filter capacitor is used to reduce high frequency noise by storing energy, and then releasing it back into the system in a low energy form. This reduces the levels of HF EMI, by providing an effective path for HF noise to be directed away from the power circuit.

The filtering resistor is used to reduce conducted noise and to provide an impedance mismatch which helps to attenuate a wide range of EMI and conducted noise. This impedance mismatch ensures that only the frequency components which are needed, are able to pass through the power line filter module.

Using the FN258HV-30-33 in industrial applications, provides an excellent solution for EMI protection, reducing EMI emissions to the lowest possible levels. The three-stage filtering makes this module highly effective in reducing both HF and LF EMI interference. In addition, the impedance mismatch helps to reduce surges, transients, and voltage drop, providing maximum protection for power supply circuits.

Overall, the FN258HV-30-33 is an excellent choice for power line filter modules in industrial applications. The high frequency filtering, impedance mismatch, and three-stage filtering all combine to provide maximum protection against EMI and RF interference. This allows for improved performance and reliability of power supply systems, and helps to reduce the risk of component damage due to electrical noise.

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