BLM21BD222SN1L

Chip Ferrite Bead Overview

The Murata BLM21BD222SN1L is a single-line chip ferrite bead in the BLM21BD series, housed in an 0805 (2012 metric) surface-mount package. It provides an impedance of 2250 Ω at 100 MHz with a tolerance of 25%. The component supports a maximum DC current of 200 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

• Provides high-impedance noise suppression for high-speed signal lines
• Designed for effective EMI filtering applications
• Constructed using multi-layer ferrite technology

Chip Ferrite Bead Applications

• High-speed signal line noise suppression
• EMI suppression filters
• Automotive electronic circuits

Chip Ferrite Bead Procurement Notes

Verify the specific suffix SN1L against official Murata documentation to confirm packaging details and terminal configuration. 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 high attenuation is required on single signal lines within compact spaces. The 0805 footprint allows for dense PCB layouts while maintaining robust thermal performance across the specified temperature range. Verify that the 200 mA current rating aligns with the operational load of the protected circuit.

Chip Ferrite Bead Part Context

This part belongs to the BLM21BD series, which consists of automotive-grade chip ferrite beads manufactured by Murata Electronics. These components utilize multi-layer construction to achieve high impedance values in small packages, making them suitable for demanding environments where space and reliability are critical constraints.

Chip Ferrite Bead Replacement Considerations

Cross-reference with other BLM21BD series variants such as BLM21BD272SN1L or BLM21BD102SN1D if different impedance levels are needed. Ensure any substitute maintains the same 0805 footprint and current handling capabilities.