BLM18EG471SN1D

Chip Ferrite Bead Overview

The Murata BLM18EG471SN1D is a single-line chip ferrite bead from the EMIFIL BLM18 series, designed for high-frequency noise suppression in general signal lines. It features a 0603 (1608 metric) surface-mount package with dimensions of 1.6 mm length, 0.8 mm width, and a maximum height of 0.95 mm. The component provides an impedance of 470 Ohms at a test frequency of 100 MHz with a tolerance of 25%. It supports a maximum DC current of 500 mA and has a maximum DC resistance of 210 mOhms. The device operates within a temperature range of -55°C to +125°C and meets AEC-Q200 automotive qualification standards.

Chip Ferrite Bead Feature Summary

• Provides effective attenuation of high-frequency electromagnetic interference in GHz band applications
• Automotive-grade reliability compliant with AEC-Q200 stress testing standards
• Compact 0603 footprint enables dense circuit board layout optimization

Chip Ferrite Bead Applications

• High-frequency noise suppression in general signal lines
• Electromagnetic interference filtering in automotive electronic systems
• Signal integrity protection in portable communication devices

Chip Ferrite Bead Procurement Notes

Verify the specific suffix SH1D against the official Murata datasheet to confirm packaging configuration and terminal plating specifications. Ensure the selected variant matches the required AEC-Q200 qualification status for automotive deployments. Cross-reference the impedance value at 100 MHz with circuit simulation requirements before finalizing procurement orders.

Chip Ferrite Bead Selection Notes

Select this component when designing circuits requiring 470 Ohms of impedance at 100 MHz with a 500 mA current rating. The 0603 package size is suitable for space-constrained layouts where standard ferrite beads do not fit. Consider the 210 mOhm DC resistance impact on voltage drop for low-voltage signal lines. Verify thermal performance within the specified -55°C to +125°C operating range for the target environment.

Chip Ferrite Bead Part Context

This part belongs to the Murata EMIFIL BLM18 series of chip ferrite beads. The series is engineered specifically for suppressing high-frequency noise in the GHz band across various consumer and industrial electronics. The BLM18EG variant distinguishes itself through automotive qualification, making it suitable for rigorous environmental conditions compared to standard commercial grade components in the same physical form factor.

Chip Ferrite Bead Replacement Considerations

Publicly confirmed substitute part numbers are not available in the provided documentation.