BLM18KN601EH1D

Chip Ferrite Bead Overview

The Murata BLM18KN601EH1D is a single-line ferrite chip bead in a 0603 (1608 metric) surface-mount package. It provides an impedance of 600 Ohms at a test frequency of 100 MHz with a tolerance of 25%. The component supports a maximum DC current rating of 860 mA and exhibits a maximum DC resistance of 150 mOhms. It operates within a temperature range of -55°C to +175°C and meets the AEC-Q200 automotive reliability standard.

Chip Ferrite Bead Feature Summary

• High-temperature operation capability up to 175°C for demanding environments
• Automotive-grade reliability certified under AEC-Q200 standards
• Low DC resistance design to minimize power loss in power lines

Chip Ferrite Bead Applications

• Power line noise filtering in automotive electronic systems
• EMI suppression in high-temperature industrial circuits
• Signal integrity protection in automotive infotainment units

Chip Ferrite Bead Procurement Notes

Verify the suffix EH1D confirms the specific 175°C operating temperature and AEC-Q200 certification, as other suffixes may indicate different thermal or reliability ratings. Confirm RoHS3 compliance status during sourcing. Ensure the ordering quantity matches the manufacturer's standard packaging requirements for efficient procurement.

Chip Ferrite Bead Selection Notes

Select this component when high-temperature stability is required alongside moderate current handling. The 0603 footprint offers space efficiency compared to larger packages. Compare against BLM18AG series if lower temperature ratings are acceptable, or BLM18HK series if higher impedance is needed for lower current applications.

Chip Ferrite Bead Part Context

This part belongs to the Murata BLM18 series of ferrite beads, designed for general-purpose EMI suppression. The KN variant specifically targets automotive and high-reliability applications requiring extended temperature ranges. It complements the broader BLx family by offering specialized thermal performance within the standard 0603 form factor.

Chip Ferrite Bead Replacement Considerations

BLM18AG601SN1D serves as a substitute but is rated only to 125°C and lacks AEC-Q200 certification. BLM18HG601SN1D offers similar impedance but differs in current rating and thermal specifications. Verify that any replacement meets the specific 175°C requirement.