BLM18EG221TN1D

Chip Ferrite Bead Overview

The Murata BLM18EG221TN1D is a single-line ferrite chip bead in a 0603 (1608 metric) surface-mount package. It provides an impedance of 220 Ohms at 100 MHz and 300 Ohms at 1 GHz, with a tolerance of ±25%. The component supports a maximum DC current of 1 A and features a maximum DC resistance of 150 mΩ. It operates within a temperature range of -55°C to +125°C and has physical dimensions of 1.6 mm length, 0.8 mm width, and 0.8 mm height.

Chip Ferrite Bead Feature Summary

• Provides effective electromagnetic interference suppression through high-impedance characteristics at target frequencies
• Designed for surface-mount assembly in compact electronic circuits
• Constructed from ferrite material suitable for general noise filtering applications

Chip Ferrite Bead Applications

• General EMI suppression filters
• Power supply noise filtering
• Audio line noise reduction

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 impedance curve and current rating for the target circuit design. Cross-reference datasheet parameters with procurement specifications to avoid mismatches in performance requirements.

Chip Ferrite Bead Selection Notes

Select this component when a 0603 footprint is required for space-constrained designs. Choose based on the 1 A current rating and 220 Ω impedance at 100 MHz. Consider the 150 mΩ DC resistance impact on signal integrity. Verify compatibility with RoHS and REACH regulations if applicable to the final product deployment.

Chip Ferrite Bead Part Context

This part belongs to the Murata BLM18EG series of EMIFIL ferrite beads. The series offers various impedance values and current ratings within the standard 0603 package size. It is designed for general-purpose noise suppression in consumer and industrial electronics where compact filtering solutions are necessary.

Chip Ferrite Bead Replacement Considerations

Direct substitutes include BLM18EG221SN1D and BLM18EG221TN1D variants with identical electrical characteristics but different packaging options such as cut tape or reel.