BLM18SG330SN1D

Chip Ferrite Bead Overview

The Murata BLM18SG330SN1D is a single-line ferrite bead in the EMIFIL BLM18SG series, housed in a 0603 (1608 metric) surface-mount package. It provides an impedance of 33 ohms at 100 MHz with a tolerance of ±25%. The component supports a maximum DC current rating of 6A and features a low maximum DC resistance of 8 milliohms. It operates within a temperature range of -55°C to +125°C and complies with RoHS and REACH standards.

Chip Ferrite Bead Feature Summary

• Provides effective electromagnetic interference suppression for high-current power lines
• Designed for compact surface-mount integration in space-constrained applications
• Maintains stable electrical performance across a wide industrial temperature range

Chip Ferrite Bead Applications

• Power supply filtering circuits
• EMI suppression filters
• High-current signal line protection

Chip Ferrite Bead Procurement Notes

Verify the specific suffix SN1D against official Murata documentation to confirm packaging and tape-and-reel specifications. Ensure the selected variant matches the required impedance tolerance and current handling capabilities for the target circuit design before finalizing procurement orders.

Chip Ferrite Bead Selection Notes

Select this component when designing circuits requiring significant current handling capacity alongside noise attenuation. The 6A rating distinguishes it from lower-current variants in the same footprint. Verify that the 33-ohm impedance profile aligns with the specific frequency spectrum of the noise being suppressed in the application.

Chip Ferrite Bead Part Context

This part belongs to the Murata BLM18SG series, which specializes in high-current ferrite beads. The series utilizes advanced ferrite materials to achieve high saturation characteristics while maintaining low DC resistance. This allows for effective noise filtering without introducing excessive voltage drop in power distribution networks.

Chip Ferrite Bead Replacement Considerations

Direct substitutes include other Murata BLM18SG series parts with matching 33-ohm impedance and 6A ratings, such as BLM18SG330TN1D. Cross-brand replacements require careful verification of impedance curves, current limits, and physical dimensions to ensure compatibility.