BLM18BB121SH1D

Chip Ferrite Bead Overview

The Murata BLM18BB121SH1D is a single-line ferrite chip bead in the EMIFIL BLM18 series, housed in a 0603 (1608 metric) surface-mount package. It provides an impedance of 120 Ohms at a test frequency of 100 MHz with a tolerance of 25%. The component supports a maximum DC current of 500 mA and features a maximum DC resistance of 500 mOhms. It operates within a temperature range of -55°C to +125°C and meets AEC-Q200 automotive qualification standards.

Chip Ferrite Bead Feature Summary

• Provides differential mode noise suppression for single-line circuits
• Automotive-grade reliability certified under AEC-Q200 standards
• Compact 0603 surface-mount footprint for space-constrained designs

Chip Ferrite Bead Applications

• Automotive electronic circuit noise filtering
• Single-line signal path interference suppression
• High-frequency noise attenuation in compact PCB layouts

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 and current ratings for the target application. Cross-reference datasheets for any recent product change notifications or material updates.

Chip Ferrite Bead Selection Notes

Select this component when a 0603 footprint is required for single-line noise suppression. The 500 mA current rating suits moderate power applications, while the 120 Ohm impedance targets specific high-frequency noise profiles. Confirm thermal stability requirements align with the specified operating temperature range.

Chip Ferrite Bead Part Context

This part belongs to the Murata EMIFIL BLM18 series of ferrite beads. The series offers various impedance values and current ratings in standard 0603 packages. The BLM18BB121SH1D specifically addresses automotive and industrial needs requiring reliable noise filtration in small form factors.

Chip Ferrite Bead Replacement Considerations

Publicly confirmed substitute part numbers are not available in the provided source data. Verify compatibility with alternative manufacturers by matching impedance, current rating, and package dimensions.