BLM18DN381SN1D

Chip Ferrite Bead Overview

The Murata BLM18DN381SN1D is a single-channel ferrite chip bead designed for surface-mount technology in the 0603 (1608 metric) package. It provides an impedance of 380 Ohms at 100 MHz with a tolerance of 25%. The component supports a maximum DC current of 850 mA and features a maximum DC resistance of 325 mOhms. It operates within a temperature range of -55°C to +125°C. Physical dimensions are 1.6 mm in length, 0.8 mm in width, and 0.8 mm in height.

Chip Ferrite Bead Feature Summary

• Provides high impedance attenuation for noise suppression in high-frequency circuits
• Designed for compact surface-mount integration in space-constrained layouts
• Capable of handling significant direct current loads without saturation

Chip Ferrite Bead Applications

• High-speed data line filtering
• Power supply output noise reduction
• Clock signal integrity maintenance

Chip Ferrite Bead Procurement Notes

Verify the specific suffix 'SN1D' against official Murata documentation to confirm the exact impedance tolerance and packaging configuration. Ensure the selected variant matches the required 380 Ohm specification at 100 MHz. Cross-reference the RoHS compliance status directly with the manufacturer's latest datasheet before finalizing procurement orders.

Chip Ferrite Bead Selection Notes

Select this component when a 0603 footprint is required alongside a 380 Ohm impedance value. The 850 mA current rating makes it suitable for power lines where moderate current handling is necessary. Compare the 325 mOhms DC resistance against circuit loss requirements to ensure minimal voltage drop impact on the target application design.

Chip Ferrite Bead Part Context

This part belongs to the BLM18DN_SN series of ferrite beads from Murata Electronics. It is categorized under passive components specifically designed for electromagnetic interference suppression. The series utilizes monolithic ferrite technology to provide effective broadband noise absorption in electronic assemblies.

Chip Ferrite Bead Replacement Considerations

Public confirmed substitute part numbers are not available in the provided source material.