BLM18EG391TZ1D

Chip Ferrite Bead Overview

The Murata BLM18EG391TZ1D is a surface-mount ferrite bead from the BLM18EG series, designed for electromagnetic interference (EMI) suppression in electronic circuits. It features a 0603 package with dimensions of 1.6mm length, 0.8mm width, and 0.8mm height. The component provides an impedance of 390Ω at 100MHz and 500Ω at 1GHz. It supports a rated current of 1A with a maximum DC resistance of 150mΩ. Operating temperatures range from -55°C to +125°C.

Chip Ferrite Bead Feature Summary

• Provides effective high-frequency noise attenuation through ferrite material properties
• Compact 0603 footprint suitable for space-constrained surface mount applications
• Capable of handling high continuous currents without significant performance degradation

Chip Ferrite Bead Applications

• General EMI suppression filters
• Power line filtering in portable devices
• Signal integrity enhancement in digital circuits

Chip Ferrite Bead Procurement Notes

Verify the specific suffix 'TZ1D' against official Murata documentation to confirm tape and reel specifications or marking variations. Ensure the selected variant matches the required impedance tolerance and current rating for the target application circuit design.

Chip Ferrite Bead Selection Notes

Select this component when a 0603 ferrite bead with 1A current capacity and approximately 390Ω impedance at 100MHz is required. Compare against the BLM18AG and BLM18PG series if different current ratings or impedance characteristics are needed for the specific noise profile.

Chip Ferrite Bead Part Context

This part belongs to the BLM18EG series of chip ferrite beads manufactured by Murata Electronics. The series is characterized by its ability to handle higher currents compared to standard general-purpose beads while maintaining compact dimensions. It is distinct from automotive-specific variants which may carry different qualification standards.

Chip Ferrite Bead Replacement Considerations

Direct substitutes include other Murata 0603 ferrite beads with similar electrical parameters, such as the BLM18EG391SN1D, provided the packaging suffix does not alter functional specifications. Cross-brand replacements require matching impedance curves and current ratings.