BLM18BD470SZ1D

Chip Ferrite Bead Overview

The Murata BLM18BD470SZ1D is a single-line chip ferrite bead in the BLM18_Z series, housed in an unshielded 0603 (1608 metric) SMD package measuring 1.6 mm x 0.8 mm x 0.6 mm. It provides 47 Ohms impedance at 100 MHz with a 25% tolerance and a maximum DC resistance of 250 mOhms. Rated for a maximum DC current of 600 mA, it operates between -55°C and +125°C and meets AEC-Q200 automotive qualification standards.

Chip Ferrite Bead Feature Summary

• Provides electromagnetic interference suppression via high-frequency impedance characteristics
• Designed for surface-mount integration on printed circuit boards
• Constructed as an unshielded component to minimize parasitic effects

Chip Ferrite Bead Applications

• EMI suppression filters
• High-speed signal lines
• Digital interfaces

Chip Ferrite Bead Procurement Notes

Verify the specific suffix against official documentation to confirm exact electrical tolerances and packaging configurations. Confirm RoHS compliance status and AEC-Q200 automotive qualification requirements prior to procurement. Ensure the selected variant matches the required impedance and current ratings for the target application circuit.

Chip Ferrite Bead Selection Notes

Select this component when a 0603 footprint is required for EMI filtering in space-constrained designs. The 600 mA rating supports moderate current loads while maintaining effective noise attenuation. Verify that the 47 Ohm impedance value aligns with the target frequency spectrum for the specific signal line being protected.

Chip Ferrite Bead Part Context

This part belongs to the BLM18_Z series of chip ferrite beads from Murata Electronics. The series offers various impedance values within the standard 0603 package size, providing designers with flexible options for noise suppression across different signal frequencies and current requirements.

Chip Ferrite Bead Replacement Considerations

Cross-reference other BLM18BD variants with matching 47 Ohm impedance and 0603 dimensions. Verify equivalent current handling and DC resistance specifications before substitution.