FN258HV-42-33

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FN258HV-42-33 is one of a series of power line filter modules, specifically designed to provide a combination of high pulse surge and differential impedance attenuation that are necessary to suppress EMI/RFI interference in a broad range of common electrical/electronic applications. With as little as 34 dB at 0-4GHz, this filter is universally suitable for single and multi-phase, rocker style, or any other housing configuration.

The FN258HV-42-33 is a DC-link type filter, employing a series capacitor and differential inductor configuration to reduce voltage ripple and to increase transient immunity. This filter module is designed to support applications where multiple noise levels are a concern and provide a competitive solution for those environments. Additionally, the FN258HV-42-33 provides immunity protection for sensitive electronic circuits by filtering out RFI and EMI noise.

A range of components are used to generate an integral electronic filter which is effective at various levels, including EMI/RFI interference, voltage ripple, and overvoltage protection. To provide optimum performance, the FN258HV-42-33 features two differential inductors, two caps, one DC-link smaller 0.1uf capacitor, an optional ESD cerablock and an integrated circuit for filtering and differential impedance attenuation at a DC link. The components are housed in an attractive, compact form factor which minimizes external wiring and ensures high reliability.

The FN258HV-42-33 is suitable for many types of applications, including embedded systems, automotive, service and military electronics, as well as in industrial and medical device applications. Due to its ability to suppress both differential and common mode noise, it is well suited for use in applications where EMI shielding may not be an option. Additionally, the FN258HV-42-33 can be used to protect components from lightning surges or thunderstorms in the vicinity of the components or the EMI/RFI noise.

The working principle of the FN258HV-42-33 is based on a combination of series capacitor and differential inductor, which help to reduce voltage ripple. At the same time, the differential inductor helps to reduce the level of transient noise. By providing a proper combination of components, the FN258HV-42-33 diode bridge filter maintains a low differential impedance level, which is beneficial in preventing noise from entering a system. The series capacitor also helps to reduce switching transients, which can cause disruption in communication circuits.

The FN258HV-42-33 filter module provides a cost-effective and high-performance solution for applications requiring a combination of high pulse surge and differential impedance attenuation. Thanks to its small form factor and ability to filter out multiple noise levels, it is a great choice for those who need reliable noise suppression in their electrical and electronic systems.

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