NFW31SP206X1E4L01

Overview

The NFW31SP206X1E4L01 is a third-order low-pass LC (Pi) EMI filter manufactured by Murata Electronics. It operates with a rated voltage of 25V and supports a maximum current of 200mA. The device features a cutoff frequency of 20MHz and provides 25dB attenuation within the 100MHz to 200MHz range. It is housed in a 1206 (3216 Metric) surface-mount package with a three-pad configuration. The component functions effectively for suppressing electromagnetic interference in compact electronic designs.

Feature Summary

• Third-order low-pass LC Pi network topology for enhanced noise suppression
• High attenuation performance in the 100MHz to 200MHz frequency range
• Compact 1206 surface-mount footprint suitable for space-constrained applications

Applications

• Electromagnetic interference suppression in portable electronics
• Signal line filtering in mobile communication devices
• Noise reduction in high-speed digital circuits

Procurement Notes

Verify component status as this part may be classified as obsolete or last-time buy. Confirm availability through authorized distributors or secondary markets. Ensure compatibility with existing PCB layouts due to the specific 1206 three-pad package requirements. Check for alternative sourcing options if standard supply chains are discontinued.

Selection Notes

Select this component when high attenuation is required in the 100MHz to 200MHz spectrum within a small form factor. The 200mA current rating suits low-power signal lines rather than power delivery paths. Consider the 25V rating for appropriate voltage headroom in the target circuit design.

Part Context

This component belongs to Murata's NFW series of passive EMI filters. It utilizes an LC Pi structure to provide superior filtering compared to single-stage solutions. The 1206 package allows for automated assembly in standard SMT production lines while maintaining effective noise suppression capabilities.

Replacement Considerations

Public confirmed substitute part numbers are not available in the provided documentation. Verify functional equivalence carefully if considering alternatives from other manufacturers.