BLM21AG221SZ1D

Chip Ferrite Bead Overview

The Murata BLM21AG221SZ1D is a single-line ferrite bead in an 0805 (2012 metric) surface-mount package. It provides an impedance of 220 Ohms at 100 MHz with a maximum DC resistance of 120 milliohms and a rated current of 900 mA. The component operates within a temperature range of -55°C to 125°C, measuring 2.00 mm in length, 1.25 mm in width, and up to 1.05 mm in height.

Chip Ferrite Bead Feature Summary

• Provides effective electromagnetic interference suppression for high-speed signal lines
• Features low DC resistance to minimize power loss in signal paths
• Designed for compact surface-mount assembly on printed circuit boards

Chip Ferrite Bead Applications

• High-speed signal line noise filtering
• General EMI suppression applications
• Portable electronic devices requiring compact filtering solutions

Chip Ferrite Bead Procurement Notes

Verify the specific suffix 'SZ1D' against official Murata documentation to confirm exact tolerance and packaging specifications. Ensure compatibility with standard 0805 footprint dimensions during layout. Confirm RoHS3 compliance status for regulatory adherence. Cross-reference datasheet parameters for impedance and current ratings prior to integration.

Chip Ferrite Bead Selection Notes

Select this component when a 220 Ohm impedance at 100 MHz is required for signal integrity. The 900 mA rating suits moderate current signal lines. The 0805 package offers a balance between performance and board space. Compare DC resistance values against similar parts to ensure minimal signal attenuation.

Chip Ferrite Bead Part Context

This part belongs to the Murata EMIFIL BLM21AG series, designed for general-purpose noise suppression. It complements other variants like the BLM21AG221SN1D, which shares similar electrical characteristics but may differ in packaging or tolerance specifications. The series supports various surface-mount requirements.

Chip Ferrite Bead Replacement Considerations

Publicly confirmed substitute part numbers are not available in the provided source material.