BLM21BD222SZ1L

Chip Ferrite Bead Overview

The Murata BLM21BD222SZ1L is a single-line chip ferrite bead in the BLM21_Z series, housed in an unshielded 0805 (2012 metric) surface-mount package. It provides an impedance of 2.25 kOhms at a test frequency of 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 mOhms. It operates within a temperature range of -55°C to +125°C and meets AEC-Q200 qualification standards.

Chip Ferrite Bead Feature Summary

• Provides high-impedance noise suppression for signal lines in the 100 MHz frequency range
• Constructed as an unshielded chip ferrite bead for compact surface-mount integration
• Qualified for automotive applications under AEC-Q200 reliability standards

Chip Ferrite Bead Applications

• High-speed signal line filtering
• EMI suppression circuits
• Automotive electronic systems

Chip Ferrite Bead Procurement Notes

Verify the specific suffix 'Z1L' against official Murata documentation to confirm exact packaging configuration and tape-and-reel specifications. Ensure the selected variant aligns with required manufacturing processes and handling constraints. Cross-reference the datasheet for precise mechanical dimensions and soldering recommendations before finalizing procurement orders.

Chip Ferrite Bead Selection Notes

Select this component when designing for 0805 footprints requiring 2.25 kOhms impedance at 100 MHz. Confirm that the 250 mA current rating satisfies the circuit's operational requirements without saturation. Verify compatibility with the target application's thermal environment, ensuring operation remains within the specified -55°C to +125°C range.

Chip Ferrite Bead Part Context

This part belongs to the Murata BLM21 series of EMIFIL ferrite beads, designed for EMI suppression in digital and RF circuits. The BLM21BD222SZ1L specifically targets applications needing robust noise filtering in space-constrained environments. It represents a standard solution for maintaining signal integrity in modern electronic assemblies.

Chip Ferrite Bead Replacement Considerations

Consult the official Murata BLM21 datasheet for verified substitute part numbers with matching impedance and current ratings. Do not assume interchangeability based on package size alone; verify electrical parameters and mounting compatibility.