BLM21BD222SH1L

Chip Ferrite Bead Overview

The Murata BLM21BD222SH1L is a surface-mount ferrite bead in the 0805 (2012 metric) package. It provides an impedance of 2200 Ω at 100 MHz with a tolerance of 25%. The component supports a maximum DC current of 250 mA and features a maximum DC resistance of 600 mΩ. Operating temperatures range from -55°C to +125°C. Physical dimensions are 2 mm in length, 1.25 mm in width, and 1.25 mm in height.

Chip Ferrite Bead Feature Summary

• Designed for high-speed signal line filtering applications
• Provides effective EMI suppression capabilities
• Complies with RoHS and REACH standards

Chip Ferrite Bead Applications

• High-speed signal lines
• EMI suppression filters

Chip Ferrite Bead Procurement Notes

Verify the specific suffix 'SN1L' or 'SH1L' against official datasheets, as these indicate distinct packaging formats such as cut tape or reel quantities. Confirm that the impedance value aligns with the design requirement of 2200 Ω at 100 MHz. Ensure the 250 mA current rating meets the circuit's operational limits to prevent performance degradation.

Chip Ferrite Bead Selection Notes

Select this component when space constraints require a 0805 footprint for noise suppression. It is suitable for circuits requiring moderate current handling up to 250 mA. Consider the 600 mΩ DC resistance impact on voltage drop. Verify compatibility with automated pick-and-place equipment due to the specific package dimensions.

Chip Ferrite Bead Part Context

This part belongs to the BLM21BD series of chip ferrite beads manufactured by Murata Electronics. The series is characterized by its compact size and suitability for general-purpose noise suppression in portable electronics and digital circuits. It serves as a passive component to attenuate high-frequency noise without significantly affecting the desired signal integrity.

Chip Ferrite Bead Replacement Considerations

Publicly confirmed substitute part numbers for this specific model were not identified in the provided documentation.