NFA21SL317V1A45L

Overview

The NFA21SL317V1A45L is a surface-mount LC EMI filter manufactured by Murata Electronics. It features a second-order low-pass configuration with four independent channels housed in a compact 0805 (2012 Metric) array package containing ten pads. The component operates with a cutoff frequency of 310 MHz and supports a maximum current rating of 100 mA per channel. It provides an attenuation value of 20 dB at 800 MHz, ensuring effective suppression of electromagnetic interference in high-density circuit designs.

Feature Summary

• Integrates four independent filtering channels within a single compact surface-mount footprint
• Utilizes LC network topology to achieve second-order low-pass signal filtering characteristics
• Designed for efficient electromagnetic interference suppression in dense electronic assemblies

Applications

• High-speed data line protection in portable consumer electronics
• Signal integrity management in mobile communication devices
• EMI mitigation in compact industrial control modules

Procurement Notes

Verify the specific ordering suffix against official Murata documentation to ensure correct electrical parameters and package configuration. Confirm that the requested variant matches the required cutoff frequency and current ratings for your specific application design. Cross-reference the manufacturer part number with authorized distributor catalogs to validate authenticity and availability status before finalizing procurement orders.

Selection Notes

Select this component when space constraints require multiple filtered channels in a minimal footprint. Ensure the 100 mA current rating meets the operational requirements of the target signal lines. Verify compatibility with standard surface-mount reflow soldering processes and confirm that the 0805 package dimensions fit within the designated board layout area without interfering with adjacent components.

Part Context

This component belongs to Murata's NFA series of surface-mount EMI filters, which are engineered for compact electronic applications requiring effective noise suppression. The series utilizes advanced LC technology to provide high attenuation in small packages. This specific model represents a multi-channel solution designed to replace discrete filtering components, thereby simplifying assembly and reducing overall board space consumption in modern electronic systems.

Replacement Considerations

The NFA21SL207X1A45L serves as a confirmed substitute option within the same product family. Verify that the alternative part's cutoff frequency and current specifications align with the original design requirements before implementation.