NFM18PS474R0J3D

Overview

The Murata NFM18PS474R0J3D is a three-terminal feedthrough capacitor from the EMIFIL NFM18PS series, designed for high-current applications. It features a capacitance of 0.47 µF with a ±20% tolerance and a DC voltage rating of 6.3 VDC. The component supports a rated current of 2 A and exhibits a maximum DC resistance of 30 mΩ. Housed in a compact 0603 (1608 metric) surface-mount package measuring 1.6 mm x 0.8 mm x 0.6 mm, it operates within a temperature range of -55°C to +125°C. The device meets AEC-Q200 automotive qualification standards.

Feature Summary

• Three-terminal feedthrough architecture providing superior electromagnetic interference suppression compared to standard two-terminal capacitors.
• Capable of handling high continuous currents up to 2 A, suitable for power line filtering applications.
• Automotive-grade reliability certified under AEC-Q200 standards for harsh environment durability.

Applications

• Power supply input filtering in automotive electronic control units
• Noise suppression on high-current data lines in vehicle infotainment systems
• EMI mitigation in automotive sensor interfaces requiring robust thermal stability

Procurement Notes

Verify the specific suffix J3D against the manufacturer datasheet to confirm terminal configuration and termination material compatibility. Ensure the selected packaging format matches the assembly equipment requirements. Confirm that the 6.3V rating aligns with the circuit's peak voltage conditions to prevent dielectric breakdown during operation.

Selection Notes

Select this component when high current handling and low impedance are critical for EMI reduction. The 0603 footprint allows for dense PCB layouts while maintaining performance. Consider the 30 mΩ internal resistance impact on signal integrity and power loss. Verify that the 0.47 µF value provides adequate attenuation at the target noise frequencies without causing resonance issues in the specific circuit topology.

Part Context

This part belongs to Murata’s EMIFIL NFM18PS series, which specializes in single-circuit feedthrough capacitors for large currents. Unlike the NFM18PC series, the PS variant is optimized for higher current ratings, making it distinct within the broader NFM18 family of multi-layer ceramic feedthrough filters.

Replacement Considerations

NFM18PC474R0J3D offers similar capacitance and voltage but may differ in current handling capabilities; verify specifications before substitution. Other NFM18PS variants with different capacitance values can be considered if filter characteristics require adjustment.