NFA18SL357V1A45L

Overview

The Murata NFA18SL357V1A45L is a four-channel LC EMI filter array housed in a compact 0603 (1608 metric) surface-mount package. It operates within a temperature range of -40°C to +85°C and provides an attenuation of 15 dB. The component features a cutoff frequency of 350 MHz, with a specified frequency range extending from 900 MHz to 2 GHz. Physical dimensions include a length of 1.6 mm, width of 0.8 mm, and height of 0.5 mm. It utilizes a 10-pad configuration for SMD/SMT termination.

Feature Summary

• Compact 0603 footprint design enabling high-density PCB layouts
• Steep insertion loss characteristics for effective noise suppression
• Four-channel architecture supporting multiple signal lines simultaneously

Applications

• High-speed data line protection in mobile devices
• EMI suppression in portable electronic equipment
• Signal integrity management in consumer electronics

Procurement Notes

Verify the current lifecycle status before procurement, as this specific part number may be marked as not recommended for new designs. Confirm that the 0603 package dimensions and 10-pad configuration align with your existing PCB footprints. Ensure compatibility with standard reflow soldering profiles for SMD components operating within the specified -40°C to +85°C temperature range.

Selection Notes

Select this component when space constraints require a 0603 form factor for multi-line filtering. The four-channel capability makes it suitable for applications requiring simultaneous noise reduction on parallel data buses. Consider the 350 MHz cutoff frequency relative to the target signal bandwidth to ensure adequate attenuation without compromising signal integrity in the passband.

Part Context

This component belongs to the Murata NFA18SL series of LC combined EMI filters. The series is characterized by its compact size and steep insertion loss curves. The NFA18SL357V1A45L specifically represents a variant optimized for higher frequency suppression compared to lower cutoff frequency models within the same family, such as those with 200 MHz or 300 MHz ratings.

Replacement Considerations

Direct substitutes within the NFA18SL series include the NFA18SL207V1A45L, which offers a 200 MHz cutoff frequency. Verify that the alternative part's attenuation characteristics and physical dimensions match the original design requirements before substitution.