BLM18PG300SN1D

Chip Ferrite Bead Overview

The Murata BLM18PG300SN1D is a single-line chip ferrite bead in a 0603 (1608 metric) surface-mount package. It provides an impedance of 30 Ohms at a test frequency of 100 MHz with a tolerance of ±25%. The component supports a maximum DC current of 1 A and exhibits a maximum DC resistance of 50 mOhms. It operates within a temperature range of -55°C to +125°C and meets the AEC-Q200 automotive qualification standard.

Chip Ferrite Bead Feature Summary

• Provides electromagnetic interference suppression through high-impedance characteristics at specific frequencies
• Designed for surface-mount assembly on printed circuit boards
• Qualified for automotive applications according to AEC-Q200 standards

Chip Ferrite Bead Applications

• Power supply line filtering
• EMI suppression filters
• Automotive electronic circuits

Chip Ferrite Bead Procurement Notes

Verify the complete part number including the suffix SN1D to ensure correct packaging configuration. Confirm that the 30 Ohm impedance rating aligns with the target noise frequency spectrum. Ensure the 1 A current handling capacity exceeds the maximum operating current of the protected circuit to prevent saturation or thermal issues during operation.

Chip Ferrite Bead Selection Notes

Select this component when a low-profile 0603 footprint is required for space-constrained designs. The 1 A current rating makes it suitable for moderate power lines where lower impedance values are acceptable. Consider the 50 mOhms DC resistance impact on voltage drop if efficiency is critical. Verify compatibility with reflow soldering profiles specified for the series.

Chip Ferrite Bead Part Context

This component belongs to the BLM18P series of ferrite beads manufactured by Murata Electronics. The series utilizes soft ferrite materials to absorb high-frequency noise energy. The BLM18 designation indicates the 0603 case size, while the PG suffix typically denotes specific material properties or packaging variations within the product line.

Chip Ferrite Bead Replacement Considerations

Direct substitutes include BLM18PG300SZ1D from the same manufacturer. Cross-brand replacements require matching the 30 Ohm impedance at 100 MHz, 1 A current rating, and 0603 dimensions. Verify that alternative components meet the same AEC-Q200 qualification if automotive reliability is required.