BLM18SN220TN1D

Chip Ferrite Bead Overview

The Murata BLM18SN220TN1D is a single ferrite chip bead in a 0603 (1608 metric) surface-mount package. It exhibits an impedance of 22 ohms at 100 MHz with a tolerance of 25%. The component supports a maximum DC current of 8 A and maintains a maximum DC resistance of 4 mΩ. Operating temperatures range from -55°C to +125°C, with physical dimensions of 1.6 mm length, 0.8 mm width, and 0.8 mm height.

Chip Ferrite Bead Feature Summary

• Provides high-current handling capability suitable for power line applications
• Offers compact surface-mount footprint for dense circuit board layouts
• Delivers effective electromagnetic interference suppression at specified frequencies

Chip Ferrite Bead Applications

• Power line filtering
• Electromagnetic interference suppression circuits
• High-current signal path conditioning

Chip Ferrite Bead Procurement Notes

Verify the specific suffix against official Murata documentation to confirm exact electrical tolerances and packaging configurations. Ensure the selected variant matches the required current rating and impedance specifications for the target application environment. Cross-reference datasheet revisions to confirm compliance with current regulatory standards.

Chip Ferrite Bead Selection Notes

Select this component when high continuous current capacity is required alongside EMI suppression in limited space. Compare DC resistance values against thermal management requirements. Validate that the 0603 package size aligns with the PCB design constraints and soldering capabilities of the manufacturing process.

Chip Ferrite Bead Part Context

This part belongs to the BLM18 series of ferrite beads manufactured by Murata Electronics. The series utilizes ferrite material to attenuate high-frequency noise. The BLM18SN variant specifically targets applications requiring higher current ratings compared to standard signal-line beads within the same family.

Chip Ferrite Bead Replacement Considerations

Consult official Murata substitution guides for verified equivalents. Ensure any substitute maintains the 8 A current rating and 22 Ω impedance at 100 MHz. Verify package compatibility and thermal characteristics before implementation.