NFA18SL137V1A45L

Overview

The NFA18SL137V1A45L is a four-channel LC EMI filter array manufactured by Murata Electronics. It operates in a 0603 (1608 metric) surface-mount package and provides second-order low-pass filtering characteristics. The component features a cutoff frequency of 130 MHz and supports a maximum current rating of 50 mA per channel. It functions within an operating temperature range of -40°C to +85°C and delivers attenuation of 15 dB. This device is designed for high-density noise suppression in compact electronic applications.

Feature Summary

• Four-channel configuration for simultaneous multi-line noise suppression
• Second-order low-pass LC filter architecture
• Compact 0603 surface-mount footprint for space-constrained designs

Applications

• High-density noise suppression in compact electronic devices
• Signal line protection in portable electronics
• EMI filtering for data interfaces in consumer hardware

Procurement Notes

Verify the lifecycle status before procurement, as this component may be subject to obsolescence or discontinuation. Confirm that the 130 MHz cutoff frequency and 50 mA current rating align with specific circuit requirements. Ensure compatibility with the 0603 package dimensions during PCB layout. Check for updated datasheets to confirm any revisions to electrical specifications or recommended soldering profiles prior to final design approval.

Selection Notes

Select this component when multiple signal lines require EMI filtering within a limited board area. The four-channel design simplifies layout compared to discrete filters. Ensure the application voltage and current do not exceed the 50 mA limit. Consider the 130 MHz cutoff frequency relative to the signal bandwidth to prevent unwanted signal attenuation. Verify thermal performance within the specified -40°C to +85°C range for the intended environment.

Part Context

This part belongs to Murata's NFA series of EMI filter arrays. These components are engineered for suppressing electromagnetic interference in high-speed digital circuits. The NFA18SL137V1A45L specifically offers a balance between size and filtering performance, targeting applications where space is at a premium but effective noise reduction is critical for signal integrity.

Replacement Considerations

Publicly confirmed substitute part numbers are not available in the provided documentation. Consult official Murata resources for potential alternatives if this component is discontinued.