BLM18KG221SN1D

Chip Ferrite Bead Overview

The Murata BLM18KG221SN1D is a single-line ferrite chip bead in the EMIFIL BLM18 series, housed in a 0603 (1608 metric) surface-mount package. It provides an impedance of 220 Ohms at 100 MHz with a tolerance of ±25%. The component supports a maximum DC current of 2.2 A and features a maximum DC resistance of 50 mOhms. Operating temperatures range from -55°C to +125°C. Physical dimensions are 1.6 mm in length, 0.8 mm in width, and a maximum height of 0.95 mm.

Chip Ferrite Bead Feature Summary

• Provides high-impedance noise filtering for power lines within compact surface-mount footprints
• Engineered for stable performance across wide industrial temperature ranges
• Supports high continuous DC current loads without significant signal degradation

Chip Ferrite Bead Applications

• Power supply line noise suppression
• EMI suppression filters in electronic circuits
• Signal integrity protection in portable devices

Chip Ferrite Bead Procurement Notes

Verify the specific ordering suffix against official Murata documentation to ensure correct packaging and tape specifications. Confirm RoHS compliance status and moisture sensitivity level requirements prior to integration into manufacturing processes. Cross-reference the manufacturer part number with authorized distributor catalogs to validate authenticity and traceability.

Chip Ferrite Bead Selection Notes

Select this component when a 0603 footprint is required alongside a 2.2 A current rating. Compare against the BLM18PG variant if lower current handling is acceptable for cost optimization. Ensure the 220 Ohm impedance value aligns with target noise frequencies. Verify that the 50 mOhm DC resistance meets voltage drop constraints in the specific circuit design.

Chip Ferrite Bead Part Context

This component belongs to the Murata BLM18 series of ferrite beads, designed for general-purpose noise suppression. The KG suffix typically denotes specific material characteristics and current ratings within the product family. It serves as a passive filter element to attenuate high-frequency electromagnetic interference on power rails.

Chip Ferrite Bead Replacement Considerations

Publicly confirmed substitute part numbers are not available in the provided source data. Consult official Murata SimSurfing tools or authorized distributor cross-reference lists for verified alternatives.