BLM21SP111SZ1D

Chip Ferrite Bead Overview

The Murata BLM21SP111SZ1D is a ferrite chip bead in the 0805 (2012 metric) surface-mount package. It provides an impedance of 110 Ohms at 100 MHz with a tolerance of 25%. The component supports a maximum DC current of 1.1 A and has a maximum DC resistance of 40 mOhms. It operates within a temperature range of -55°C to +125°C and holds AEC-Q200 qualification for automotive reliability.

Chip Ferrite Bead Feature Summary

• Provides effective electromagnetic interference suppression in power line applications
• Features high current handling capability suitable for power circuits
• Automotive qualified for reliable operation in demanding environments

Chip Ferrite Bead Applications

• EMI suppression in power lines
• Automotive electronic circuits
• High current signal filtering

Chip Ferrite Bead Procurement Notes

Verify the specific suffix against official documentation to confirm impedance and tolerance specifications. Ensure the selected variant matches the required DC current rating and package dimensions for the target PCB layout. Confirm AEC-Q200 compliance if automotive application is intended.

Chip Ferrite Bead Selection Notes

Select this component when a 110 Ohm impedance at 100 MHz is required for noise suppression. Consider the 1.1 A current rating and low DC resistance for power integrity. Verify that the 0805 footprint fits the design constraints and that the operating temperature range meets environmental requirements.

Chip Ferrite Bead Part Context

This part belongs to the BLM21 series of ferrite beads manufactured by Murata Electronics. The series offers various impedance values and current ratings in a compact 0805 package, designed for EMI suppression in both consumer and automotive electronics.

Chip Ferrite Bead Replacement Considerations

Check for other BLM21 variants with similar impedance and current ratings. Verify package compatibility and electrical characteristics before substitution.