BLM18AG471SN1D

Chip Ferrite Bead Overview

The Murata BLM18AG471SN1D is a single-line chip ferrite bead in the EMIFIL BLM18 series, designed for high-frequency noise suppression. It features a 0603 (1608 metric) surface-mount package with dimensions of 1.6 mm length, 0.8 mm width, and 0.8 mm height. The component provides an impedance of 470 Ohms at 100 MHz with a tolerance of 25%. It supports a maximum DC current of 550 mA and has a maximum DC resistance of 350 mOhms. The operating temperature range spans from -55°C to +125°C.

Chip Ferrite Bead Feature Summary

• Suppresses high-frequency noise in general signal lines
• Single-line configuration for compact circuit design
• RoHS3 compliant construction

Chip Ferrite Bead Applications

• General signal line noise filtering
• High-frequency noise suppression circuits

Chip Ferrite Bead Procurement Notes

Verify the specific ordering suffix against official Murata documentation to ensure correct packaging and specifications. Confirm RoHS3 compliance status and moisture sensitivity level (MSL 1) requirements during procurement. Cross-reference the manufacturer part number with authorized distributor lists to avoid counterfeit components. Ensure the selected variant matches the required impedance and current ratings for the target application.

Chip Ferrite Bead Selection Notes

Select this component when a 0603 footprint is required for signal line filtering. Choose based on the 470 Ohm impedance at 100 MHz and 550 mA current rating. Consider the low DC resistance of 350 mOhms for minimal signal loss. Evaluate thermal performance within the -55°C to +125°C range. Compare against other BLM18 variants if different current or impedance characteristics are needed.

Chip Ferrite Bead Part Context

This part belongs to the Murata EMIFIL BLM18 series of chip ferrite beads. The series is engineered for suppressing electromagnetic interference in electronic circuits. The BLM18AG471SN1D specifically utilizes a 0603 case size, balancing component density with electrical performance. It serves as a passive filter element in modern surface-mount assemblies.

Chip Ferrite Bead Replacement Considerations

BLM11A471SG is listed as an alternative part number for this component.