NFL18ST107X1C3D

Overview

The NFL18ST107X1C3D is a surface-mount EMI filter circuit from Murata Electronics, belonging to the EMIFIL NFL18ST series. It utilizes an LC (T) topology configured as a third-order low-pass filter for single-channel signal line protection. The component features a capacitance of 40 pF and an inductance of 140 nH, with a cutoff frequency of 100 MHz. It operates within a voltage range of 16 V DC and supports a current rating of 100 mA. Housed in a compact 0603 (1608 metric) package measuring 1.6 mm x 0.8 mm x 0.9 mm, it functions reliably between -55°C and +125°C.

Feature Summary

• Provides sharp roll-off characteristics for effective high-frequency noise suppression
• Integrates third-order filtering within a minimal footprint SMD package
• Designed specifically for protecting sensitive signal lines against EMI/RFI interference

Applications

• Signal line filtering in portable electronic devices
• Noise suppression in automotive infotainment systems
• EMI mitigation in industrial control interfaces

Procurement Notes

Verify component status carefully as this part is officially listed as obsolete or discontinued by the manufacturer. Confirm availability through authorized distributors or secondary markets if sourcing is required. Ensure that any replacement components maintain identical electrical specifications and physical dimensions to guarantee compatibility with existing PCB layouts and design requirements.

Selection Notes

Select this component when a third-order LC T-filter is required for signal integrity in space-constrained designs. The 0603 package allows for dense board placement while maintaining robust performance up to 125°C. Consider the specific 40 pF capacitance and 140 nH inductance values to ensure proper impedance matching and cutoff frequency alignment with the target application's noise profile.

Part Context

This component belongs to the Murata EMIFIL NFL18ST series, which specializes in compact EMI filters for signal lines. The series is known for delivering high attenuation in small packages suitable for modern electronics. The NFL18ST107X1C3D specifically addresses needs for sharp filtering characteristics in applications where standard ferrite beads may not provide sufficient noise reduction.

Replacement Considerations

Public confirmed substitute part numbers are not available in the provided documentation due to the component's obsolete status.