NFA31GD1014704D

Overview

The NFA31GD1014704D is a surface-mount RC EMI filter circuit from Murata Electronics, housed in a 1206 (3216 Metric) package. It features a four-channel array configuration with a first-order low-pass topology. Key electrical parameters include a capacitance of 100pF per channel and a resistance of 47 Ohms per channel. The device is rated for a maximum DC voltage of 6V and a continuous current of 20mA.

Feature Summary

• Integrates four independent RC filtering channels within a single compact surface-mount component to reduce board space.
• Employs a first-order low-pass architecture designed to attenuate high-frequency electromagnetic interference signals.

Applications

• High-speed digital signal line protection
• Data bus noise suppression
• Portable electronic device EMI mitigation

Procurement Notes

Verify the specific suffix '4D' against official Murata documentation to confirm the exact resistance tolerance and packaging specifications. Ensure compatibility with 6V DC operating limits and 20mA current ratings during design integration. Cross-reference the 1206 footprint dimensions for PCB layout accuracy.

Selection Notes

Select this component when a multi-channel RC filter solution is required for space-constrained designs. The 1206 package offers a balance between component count reduction and thermal performance. Verify that the 47-ohm impedance matches the target signal line requirements without causing excessive signal attenuation.

Part Context

This part belongs to the Murata NFA31 series of EMIFIL components. These are specialized passive devices combining resistors and capacitors to provide effective noise suppression in small form factors. The series is widely used in consumer electronics and communication equipment requiring efficient EMI management.

Replacement Considerations

Publicly confirmed substitute part numbers are not available in the provided source material. Consult Murata's official cross-reference tools or datasheets for verified alternatives before implementation.

FAQ

What is the filter order of the NFA31GD1014704D?

The component utilizes a first-order low-pass filter topology.

How many filtering channels does this device contain?

It contains four independent filtering channels arranged in an array.