NFL21SP407X1C3D

Overview

The NFL21SP407X1C3D is an EMI filter circuit manufactured by Murata Electronics, belonging to the EMIFIL NFL series. It utilizes a Pi Filter topology and is housed in a compact 0805 (2012 metric) surface-mount package with dimensions of 2 mm length, 0.85 mm width, and 1.25 mm height. The component features a cutoff frequency of 400 MHz, rated DC voltage of 16 V, and current rating of 300 mA. Internal circuitry includes 34 nH inductance and 16 pF capacitance. It operates within a temperature range of -55°C to +125°C.

Feature Summary

• Integrates LC network components into a single compact surface-mount device for efficient PCB layout
• Provides high-frequency signal attenuation through a dedicated Pi Filter topology
• Designed for robust operation across extended industrial temperature ranges

Applications

• General purpose EMI suppression in electronic circuits
• Signal line filtering in portable devices
• Noise reduction in low-voltage data interfaces

Procurement Notes

Verify component authenticity and datasheet alignment before integration. Confirm that the specific suffix X1C3D matches required packaging and tolerance specifications. Ensure design compatibility with the 16V DC rating and 300mA current limit. Check for end-of-life status or obsolescence notices from Murata Electronics prior to finalizing procurement plans.

Selection Notes

Select this component when space-constrained designs require integrated EMI filtering without discrete component assembly. The 0805 footprint suits automated surface-mount assembly processes. Consider the 400 MHz cutoff frequency against target noise spectra. Verify thermal management requirements align with the -55°C to +125°C operating range for the intended application environment.

Part Context

This part belongs to Murata's NFL series of EMI filter circuits, which are designed to replace multiple discrete passive components. The EMIFIL brand denotes specialized electromagnetic interference solutions. The NFL series focuses on providing integrated filtering capabilities in small form factors suitable for modern high-density electronics manufacturing.

Replacement Considerations

Public confirmed substitute part numbers are not available in the provided documentation.