BLM21BB151SN1D

Chip Ferrite Bead Overview

The Murata BLM21BB151SN1D is a single-line chip ferrite bead in the EMIFIL BLM21 series, housed in an 0805 (2012 metric) surface-mount package. It provides 150 Ohms impedance at 100 MHz with a 25% tolerance. The component supports a maximum DC current of 600 mA and features a maximum DC resistance of 250 mOhms. Operating temperatures range from -55°C to +125°C. Physical dimensions are 2 mm length, 1.25 mm width, and 0.85 mm height. It meets AEC-Q200 automotive qualification standards.

Chip Ferrite Bead Feature Summary

• Provides high-frequency noise suppression through ferrite material absorption
• Automotive-grade reliability certified under AEC-Q200 standards
• Compact 0805 footprint suitable for dense surface-mount layouts

Chip Ferrite Bead Applications

• Automotive electronic circuit noise filtering
• High-speed digital signal line protection
• Power supply output decoupling

Chip Ferrite Bead Procurement Notes

Verify the specific suffix SN1D against official Murata documentation to confirm termination plating and packaging configuration. Ensure the selected distributor source aligns with the required reel or cut-tape format. Cross-reference the AEC-Q200 certification status if the application mandates strict automotive compliance protocols before finalizing procurement orders.

Chip Ferrite Bead Selection Notes

Select this component when a 150 Ohm impedance at 100 MHz is required within a 0805 package. Confirm that the 600 mA current rating exceeds the maximum operating current of the target circuit. Verify that the 250 mOhms DC resistance does not cause unacceptable voltage drop. Ensure the -55°C to +125°C temperature range covers the environmental conditions of the installation site.

Chip Ferrite Bead Part Context

This part belongs to the Murata EMIFIL BLM21 series of chip ferrite beads. The series offers various impedance values in the standard 0805 case size. The BLM21BB variant specifically denotes the impedance code and termination style within the broader product family designed for general-purpose noise suppression in compact electronic assemblies.

Chip Ferrite Bead Replacement Considerations

Direct substitutes include other BLM21BB151 variants with identical electrical parameters but different packaging suffixes, such as BLM21BB151SN1. Verify physical compatibility and impedance curves before substitution.