BLM21HE122BH1L

Chip Ferrite Bead Overview

The Murata BLM21HE122BH1L is a single-line ferrite chip bead in an 0805 (2012 metric) package. It provides 1200 Ω impedance at 100 MHz with a maximum DC resistance of 110 mΩ and a rated current of 1.6 A. The component operates between -55°C and +125°C and meets AEC-Q200 automotive standards.

Chip Ferrite Bead Feature Summary

• Provides high-frequency noise suppression for single signal lines
• Automotive-grade reliability certified to AEC-Q200 standards
• Compact surface-mount design suitable for space-constrained PCB layouts

Chip Ferrite Bead Applications

• Automotive electronic systems
• Signal line noise filtering
• Power supply circuit protection

Chip Ferrite Bead Procurement Notes

Verify the specific suffix against official Murata documentation to confirm impedance, tolerance, and packaging details. Ensure the selected variant matches the required DC current rating and impedance specifications for the target application circuit.

Chip Ferrite Bead Selection Notes

Select this component when high-current handling capability is required alongside significant high-frequency attenuation. The 0805 footprint offers a balance between current capacity and board space efficiency compared to smaller packages.

Chip Ferrite Bead Part Context

This part belongs to the BLM21H series of ferrite beads designed for automotive applications. The series utilizes specialized ferrite materials to provide effective electromagnetic interference suppression while maintaining stability across wide temperature ranges.

Chip Ferrite Bead Replacement Considerations

Consult official Murata substitution guides for verified equivalents. Cross-referencing requires matching impedance curves, current ratings, and package dimensions to ensure functional compatibility.