BLM18AG331SN1D

Chip Ferrite Bead Overview

The Murata BLM18AG331SN1D is a single-line ferrite bead chip from the EMIFIL BLM18 series, designed for surface-mount assembly in the 0603 (1608 metric) package. It provides an impedance of 330 Ohms at 100 MHz with a maximum DC resistance of 300 milliohms and a rated current capacity of 500 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 high-impedance noise suppression for digital signal lines and power supply circuits
• Optimized low DC resistance minimizes voltage drop and power loss in sensitive applications
• Compact 0603 footprint enables dense circuit board layouts

Chip Ferrite Bead Applications

• Noise filtering for portable electronic devices
• EMI suppression in consumer electronics
• Signal integrity protection in communication equipment

Chip Ferrite Bead Procurement Notes

Verify the complete part number against official Murata documentation to ensure correct impedance and tolerance specifications. Confirm that the 0603 package dimensions align with your PCB land pattern requirements. Check RoHS compliance status if required by your manufacturing standards.

Chip Ferrite Bead Selection Notes

Select this component when a 330 Ohm impedance at 100 MHz is required for a single-line application. Ensure the design current does not exceed 500 mA to prevent saturation. Consider the 0603 size constraint and verify thermal management capabilities within the operating temperature range.

Chip Ferrite Bead Part Context

This component belongs to the Murata EMIFIL BLM18 series, which offers various impedance values in a standard 0603 package. The AG suffix typically denotes specific material characteristics optimized for general-purpose noise suppression in compact electronic designs.

Chip Ferrite Bead Replacement Considerations

Direct substitutes include other BLM18 series parts with identical 330 Ohm impedance and 0603 packaging, such as BLM18AG331SN1D equivalents from authorized distributors. Verify current ratings and DC resistance before substitution.