BLM21BD221SH1D

Chip Ferrite Bead Overview

The Murata BLM21BD221SH1D 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 220 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 350 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 high-frequency noise suppression through significant impedance characteristics at 100 MHz
• Designed for surface-mount assembly in compact electronic circuits
• Qualified for automotive applications under AEC-Q200 reliability standards

Chip Ferrite Bead Applications

• Automotive electronics EMI suppression
• High-frequency signal line filtering
• Power supply noise reduction

Chip Ferrite Bead Procurement Notes

Verify the specific suffix 'BD' against official Murata documentation to confirm differential mode or single-line configuration details. Ensure the selected variant matches the required impedance tolerance and current rating for the target circuit design before finalizing procurement orders.

Chip Ferrite Bead Selection Notes

Select this component when a 0805 footprint is required for high-impedance noise filtering. Compare the 500 mA current rating against peak load requirements. Consider the 350 mOhms DC resistance impact on voltage drop. Verify compatibility with reflow soldering profiles specified in the datasheet.

Chip Ferrite Bead Part Context

This part belongs to the Murata EMIFIL BLM21 series of ferrite beads. The series offers various impedance values and current ratings in standard SMD packages. The BLM21BD221SH1D specifically targets applications requiring robust noise attenuation in space-constrained designs.

Chip Ferrite Bead Replacement Considerations

BLM21PG221SN1D is listed as a similar alternative by distributors.