NFZ18SM501SN10D

Overview

The NFZ18SM501SN10D is a single-channel chip noise filter manufactured by Murata Electronics, designed for EMI suppression in digital audio applications. It features a 0603 (1608 metric) surface-mount package with dimensions of 1.6 mm length, 0.8 mm width, and 0.8 mm height. The component exhibits an impedance of 500 Ohms at a test frequency of 100 MHz, with a tolerance of 25%. It supports a maximum DC current of 950 mA and has a maximum DC resistance of 250 mOhms. The device operates within a temperature range of -55°C to +125°C.

Feature Summary

• Provides effective electromagnetic interference suppression for sensitive digital audio signal lines
• Utilizes unshielded ferrite bead technology for compact surface-mount integration
• Engineered for high-current handling capabilities suitable for power and signal paths

Applications

• Digital audio circuit filtering
• EMI suppression in consumer electronics
• Signal line protection in portable devices

Procurement Notes

Verify the specific suffix codes against official Murata documentation to ensure correct impedance and packaging specifications. Confirm RoHS3 compliance status as required by regional regulations. Check for any recent design changes or obsolescence notices directly from the manufacturer before finalizing procurement plans.

Selection Notes

Select this component when a 500 Ohm impedance at 100 MHz is required for noise reduction in space-constrained designs. Ensure the 950 mA current rating meets the circuit's operational demands without excessive self-heating. The 0603 footprint allows for standard SMT assembly processes compatible with existing manufacturing infrastructure.

Part Context

This part belongs to the NFZ series of EMIFIL components, specifically tailored for noise filtering in digital environments. It represents Murata's solution for integrating EMI suppression directly onto PCBs without requiring additional shielding structures, supporting miniaturization trends in modern electronic devices.

Replacement Considerations

Consult official Murata substitution guides for verified equivalents. Cross-reference impedance curves and current ratings carefully when considering alternative manufacturers.