BLM18PG331SH1D

Chip Ferrite Bead Overview

The Murata BLM18PG331SH1D is a single-line chip ferrite bead in the EMIFIL BLM18P series, designed for surface mount applications. It features a 0603 (1608 metric) package with dimensions of 1.6mm length, 0.8mm width, and a maximum height of 0.95mm. The component provides an impedance of 330 Ohms at a test frequency of 100 MHz. It supports a maximum DC current rating of 1.2A and has a maximum DC resistance of 150 mOhms. Operating temperatures range from -55°C to +125°C. The device holds AEC-Q200 qualification for automotive reliability.

Chip Ferrite Bead Feature Summary

• Provides high impedance attenuation for electromagnetic interference suppression on power lines
• Constructed with ferrite material for effective noise filtering in compact surface mount packages
• Qualified under AEC-Q200 standards for automotive electronic application reliability

Chip Ferrite Bead Applications

• Power supply line noise filtering
• Automotive electronic circuit protection
• EMI suppression filters

Chip Ferrite Bead Procurement Notes

Verify the complete part number including suffixes such as SH1D to ensure correct packaging and tolerance specifications. Confirm that the required impedance value and current rating align with the specific circuit design requirements before ordering. Check for RoHS compliance status if environmental regulations apply to the manufacturing process.

Chip Ferrite Bead Selection Notes

Select this component when a 330 Ohm impedance at 100 MHz is required for power line filtering. Ensure the 1.2A current rating exceeds the maximum operating current of the target circuit. Consider the 0603 footprint constraints and verify compatibility with existing PCB layout designs. Compare against other BLM18 series variants if different current or impedance characteristics are needed.

Chip Ferrite Bead Part Context

This component belongs to the Murata EMIFIL BLM18 series of chip ferrite beads. The series offers various impedance values and current ratings within the same 0603 package form factor. The PG suffix indicates specific material and performance characteristics distinct from other sub-series like KG or AG. These components are widely used for EMI suppression in portable devices and automotive electronics.

Chip Ferrite Bead Replacement Considerations

BLM18KG331SH1D offers similar impedance but higher current handling. BLM18AG331SN1D provides equivalent impedance with lower current capacity.