BLM18PG181SN1D

Chip Ferrite Bead Overview

The Murata BLM18PG181SN1D is a single ferrite chip bead in the BLM18P series, designed for surface-mount applications. It features an impedance of 180 Ohms at a test frequency of 100 MHz with a tolerance of 25%. The component supports a maximum DC current of 1.5 A and has a maximum DC resistance of 90 mOhms. Housed in a 0603 (1608 metric) package measuring 1.6 mm x 0.8 mm x 0.8 mm, it operates within a temperature range of -55°C to +125°C.

Chip Ferrite Bead Feature Summary

• Provides electromagnetic interference suppression through high-impedance characteristics at specific frequencies.
• Engineered for power line filtering applications with low DC resistance to minimize signal loss.
• Constructed as a single-element chip bead suitable for compact surface-mount layouts.

Chip Ferrite Bead Applications

• EMI suppression filters
• Power supply circuits

Chip Ferrite Bead Procurement Notes

Verify the complete part number including suffixes such as SN1D or SH1D, as these indicate specific packaging configurations like cut tape or reel. Confirm RoHS compliance status and ensure the selected variant matches the required manufacturing process for the target assembly line.

Chip Ferrite Bead Selection Notes

Select this component when a 180 Ohm impedance at 100 MHz is required for noise attenuation in space-constrained designs. Ensure the circuit's DC current does not exceed 1.5 A to prevent saturation or thermal issues. Verify that the 0603 footprint aligns with the PCB layout constraints.

Chip Ferrite Bead Part Context

This component belongs to the BLM18P series of ferrite beads from Murata Electronics. The series offers various impedance values within the standard 0603 package size, providing designers with options for different filtering requirements while maintaining consistent physical dimensions and mounting characteristics.

Chip Ferrite Bead Replacement Considerations

Check for alternative suffixes like SH1D which may share identical electrical specifications but differ in packaging type. Cross-reference other BLM18P variants with similar impedance ratings if exact stock is unavailable, ensuring current handling capabilities remain sufficient.