BLM18BD470SN1D

Chip Ferrite Bead Overview

The Murata BLM18BD470SN1D is a single-line ferrite bead chip in a 0603 (1608 metric) surface-mount package. It provides an impedance of 47 Ohms at 100 MHz with a maximum DC resistance of 300 mOhms and a rated current of 500 mA. The component operates within a temperature range of -55°C to +125°C, measures 1.6 mm in length, 0.8 mm in width, and has a maximum height of 0.95 mm.

Chip Ferrite Bead Feature Summary

• Designed for EMI noise suppression on high-speed signal lines
• Compact 0603 surface-mount footprint for space-constrained PCBs
• Low DC resistance minimizes voltage drop in power paths

Chip Ferrite Bead Applications

• EMI suppression filters for digital interfaces
• Noise filtering on high-speed signal lines
• Power supply line decoupling in portable devices

Chip Ferrite Bead Procurement Notes

Verify the specific suffix SN1D against the manufacturer's latest datasheet to confirm terminal plating and packaging configuration. Ensure the selected distributor source aligns with the required reel or cut-tape quantity standards. Cross-reference the RoHS status and REACH compliance declarations with current regulatory updates before finalizing procurement orders.

Chip Ferrite Bead Selection Notes

Select this component when a 47 Ohm impedance at 100 MHz is required for signal integrity management. The 500 mA current rating suits low-power signal lines rather than high-current power rails. Consider the 300 mOhm DC resistance impact on circuit biasing. The 0603 size offers a balance between thermal performance and board real estate efficiency.

Chip Ferrite Bead Part Context

This part belongs to the Murata EMIFIL BLM18 series, which utilizes specialized ferrite materials for broadband noise absorption. The BLM18BD variant specifically targets general-purpose electronic equipment requiring reliable EMI reduction in compact form factors without compromising signal fidelity.

Chip Ferrite Bead Replacement Considerations

Publicly confirmed substitute part numbers are not available in the provided documentation. Verify compatibility with alternative ferrite beads based on identical impedance curves and physical dimensions.