BLM21BB050SH1D

Chip Ferrite Bead Overview

The Murata BLM21BB050SH1D is a single-line ferrite chip bead in the EMIFIL BLM21 series, housed in an 0805 (2012 metric) surface-mount package. It provides an impedance of 5 Ohms at a test frequency of 100 MHz with a tolerance of 25%. The component supports a maximum DC current of 1 Ampere and features a maximum DC resistance of 20 milliohms. 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, single-line filtering for signal lines
• Automotive qualified under AEC-Q200 standards
• Designed for high-current applications with low DC resistance

Chip Ferrite Bead Applications

• Automotive electronic circuit noise suppression
• Signal line filtering in consumer electronics
• Power supply output filtering

Chip Ferrite Bead Procurement Notes

Verify the specific suffix 'SH1D' against official Murata documentation to confirm packaging details and tape-and-reel specifications. Ensure the selected variant matches the required impedance tolerance and current rating for the target application. Cross-reference the manufacturer part number with authorized distributor catalogs to confirm RoHS3 compliance and availability status before finalizing procurement orders.

Chip Ferrite Bead Selection Notes

Select this component when a low-impedance filter is required for single-line signal protection in compact designs. The 0805 footprint offers a balance between current handling capability and board space efficiency. Consider the 1A current rating and 20mOhm DCR for power integrity analysis. Verify that the 5 Ohm impedance at 100 MHz aligns with the specific noise frequencies present in the circuit design.

Chip Ferrite Bead Part Context

This component belongs to the Murata EMIFIL BLM21 series, which specializes in ferrite beads for general-purpose noise suppression. The BLM21BB sub-series is characterized by its ability to handle higher currents compared to standard signal-line beads, making it suitable for both power and signal applications in automotive and industrial environments.

Chip Ferrite Bead Replacement Considerations

Consult the official Murata BLM21BB product guide for verified cross-references. Substitutions must match the 0805 footprint, 5 Ohm impedance, and 1A current rating. No alternative part numbers are confirmed in the provided source data.