Schaffner recommends a symmetrical PCB layout with the filter placed close to the noise source, and the input and output lines should be routed away from each other to minimize coupling. Additionally, a solid ground plane and a low-impedance path to the chassis ground are essential for optimal performance.
The FN343-3-05 is rated for operation up to 80°C, but derating may be necessary for higher temperatures. It's recommended to consult with Schaffner's application engineers to determine the suitability of the filter for specific high-temperature applications.
While the FN343-3-05 is designed to attenuate noise up to 1 GHz, it may not provide sufficient attenuation above 1 GHz. For high-frequency noise above 1 GHz, additional filtering or shielding may be necessary to ensure compliance with electromagnetic compatibility (EMC) regulations.
The FN343-3-05 is designed for general-purpose EMC filtering, but it may not meet the specific requirements for safety-critical applications. It's recommended to consult with Schaffner's application engineers to determine the suitability of the filter for safety-critical applications and to discuss any necessary certifications or approvals.
Schaffner recommends a torque of 0.5 Nm to 1.5 Nm for the screws on the FN343-3-05 to ensure proper mounting and to prevent damage to the filter or the PCB.
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