BLM18BA470SZ1D

Chip Ferrite Bead Overview

The Murata BLM18BA470SZ1D is a single-line chip ferrite bead from the EMIFIL BLM18 series, housed in a 0603 (1608 metric) surface-mount package. It provides an impedance of 47 Ohms at 100 MHz with a maximum DC resistance of 550 mOhms and a rated current of 300 mA. The component operates within a temperature range of -55°C to +125°C and features a maximum height of 0.95 mm.

Chip Ferrite Bead Feature Summary

• Provides electromagnetic interference suppression through high impedance characteristics at target frequencies
• Designed for surface-mount integration into compact electronic circuits
• Constructed for stable performance across extended industrial temperature ranges

Chip Ferrite Bead Applications

• EMI suppression filters in signal lines
• Noise filtering for high-speed data transmission paths
• Power line conditioning in portable devices

Chip Ferrite Bead Procurement Notes

Verify the specific suffix 'SZ1D' against official Murata documentation to confirm exact tolerance and packaging specifications. Ensure the selected variant matches the required current rating and impedance profile for the target circuit design before finalizing procurement orders.

Chip Ferrite Bead Selection Notes

Select this component when a 0603 footprint is required for noise suppression with moderate current handling capabilities. Compare the 300 mA rating and 550 mOhms DCR against circuit requirements to ensure adequate thermal performance and minimal signal attenuation during normal operation.

Chip Ferrite Bead Part Context

This part belongs to the Murata EMIFIL BLM18 family of ferrite beads, which are widely used for EMI suppression in consumer electronics and automotive applications. The BLM18 series offers various impedance values and current ratings within standard metric footprints to support diverse design constraints.

Chip Ferrite Bead Replacement Considerations

Cross-reference with other BLM18BA variants such as BLM18BA470SN1D or BLM18BB470SZ1D if different current ratings or packaging options are needed. Verify that substitute parts maintain identical impedance curves and physical dimensions for direct board compatibility.