BLM18KG221SH1D

Chip Ferrite Bead Overview

The Murata BLM18KG221SH1D is a single-line chip ferrite bead in the EMIFIL BLM18 series, designed for surface-mount assembly. It provides an impedance of 220 Ohms at 100 MHz with a maximum DC resistance of 50 mOhms and supports a rated current of 2.2 A. The component operates within a temperature range of -55°C to +125°C and meets AEC-Q200 automotive qualification standards. Its physical dimensions are 1.6 mm x 0.8 mm x 0.95 mm in a 0603 package.

Chip Ferrite Bead Feature Summary

• Provides high noise suppression performance on power lines through significant impedance generation at target frequencies.
• Features low DC resistance to minimize voltage drop and power loss during high-current operation.
• Complies with AEC-Q200 automotive reliability standards for robustness in demanding environments.

Chip Ferrite Bead Applications

• Noise suppression in automotive electronic circuits
• Power line filtering in vehicle systems
• EMI suppression for sensitive digital components

Chip Ferrite Bead Procurement Notes

Verify the specific suffix against official Murata documentation to confirm exact impedance and tolerance specifications. Ensure the selected variant matches the required automotive qualification level and packaging format for your production line. Cross-reference datasheets to validate compatibility with your circuit's current and thermal requirements before finalizing procurement.

Chip Ferrite Bead Selection Notes

Select this component when designing for automotive applications requiring reliable EMI suppression on power rails. Consider the 2.2 A current rating and 50 mOhm DCR to ensure minimal signal attenuation. Verify that the 0603 footprint aligns with your PCB layout constraints and that the operating temperature range covers your environmental conditions.

Chip Ferrite Bead Part Context

This part belongs to the Murata EMIFIL BLM18 series, which specializes in compact ferrite beads for high-density electronics. The series is widely recognized for its consistency in automotive-grade noise suppression, offering various impedance values and current ratings within standardized package sizes to facilitate design flexibility.

Chip Ferrite Bead Replacement Considerations

BLM18KG221SN1D is a documented substitute option within the same series.