BLM18KG331SZ1D

Chip Ferrite Bead Overview

The Murata BLM18KG331SZ1D is a single-line ferrite chip bead designed for surface mount technology in the 0603 (1608 metric) package. It provides an impedance of 330 Ohms at 100 MHz with a maximum DC resistance of 80 mOhms and supports a rated current of 1.7A. The component operates within a temperature range of -55°C to +125°C and meets AEC-Q200 automotive qualification standards.

Chip Ferrite Bead Feature Summary

• Provides effective electromagnetic interference suppression through high impedance characteristics at target frequencies.
• Engineered for high-current power line applications with low DC resistance to minimize signal loss.
• Automotive-grade reliability certified under AEC-Q200 standards for harsh environment durability.

Chip Ferrite Bead Applications

• Power supply filtering in automotive electronic control units
• EMI suppression on data lines in infotainment systems
• Noise reduction in portable device power circuits

Chip Ferrite Bead Procurement Notes

Verify the specific suffix 'SZ1D' against official Murata documentation to confirm impedance tolerance and termination specifications. Ensure compatibility with your PCB footprint dimensions and reflow soldering profiles. Cross-reference the AEC-Q200 certification status if automotive compliance is mandatory for your design requirements.

Chip Ferrite Bead Selection Notes

Select this component when a 330 Ohm impedance at 100 MHz is required for noise attenuation in compact designs. The 1.7A current rating suits moderate power applications, while the 0603 package allows for dense board layouts. Consider the low DC resistance to maintain efficiency in power delivery networks without excessive voltage drop.

Chip Ferrite Bead Part Context

This part belongs to the BLM18 series of EMIFIL ferrite beads, optimized for EMI suppression in consumer and automotive electronics. The series offers various impedance values and current ratings within standardized packages to support diverse filtering needs across different circuit architectures.

Chip Ferrite Bead Replacement Considerations

Consult official substitution guides for equivalent impedance and current ratings. Verify package compatibility and thermal performance before replacing. No direct public substitute part numbers are confirmed in the provided source material.