BLM21BD102SH1D

Chip Ferrite Bead Overview

The Murata BLM21BD102SH1D is a single-line ferrite chip bead in an 0805 (2012 metric) surface-mount package. It provides an impedance of 1000 Ohms at a test frequency of 100 MHz with a tolerance of 25%. The component supports a maximum DC current of 200 mA and has a maximum DC resistance of 400 mOhms. It operates within a temperature range of -55°C to +125°C. Physical dimensions are 2 mm in length, 1.25 mm in width, and 0.85 mm in height.

Chip Ferrite Bead Feature Summary

• Designed for electromagnetic interference suppression in high-speed signal lines
• Utilizes ferrite material for effective high-frequency noise attenuation
• Complies with RoHS standards for environmental safety

Chip Ferrite Bead Applications

• EMI suppression filters
• High-speed signal line filtering

Chip Ferrite Bead Procurement Notes

Verify the complete part number including suffixes such as SN1D or SH1D against official Murata documentation to ensure correct impedance and packaging specifications. Confirm that the required impedance value matches the design intent for the specific frequency band. Check for AEC-Q200 qualification if automotive reliability is required, as this specific variant may not hold that certification.

Chip Ferrite Bead Selection Notes

Select this component when a high impedance value is required for noise suppression on sensitive signal traces. Ensure the operating current does not exceed the 200 mA rating to prevent saturation. Verify that the 0805 footprint fits the PCB layout constraints. Consider thermal performance within the specified -55°C to +125°C range during operation.

Chip Ferrite Bead Part Context

This component belongs to the BLM21 series of ferrite beads manufactured by Murata Electronics. The series offers various impedance values and current ratings in a standardized 0805 package size. These components are widely used in consumer electronics and industrial equipment for EMI control.

Chip Ferrite Bead Replacement Considerations

Publicly confirmed substitute part numbers are not available in the provided source data. Consult Murata's official cross-reference tools for verified alternatives.