BLM18SG121TZ1D

Chip Ferrite Bead Overview

The Murata BLM18SG121TZ1D is a single-line ferrite chip bead in a 0603 (1608 metric) surface-mount package. It provides an impedance of 120 Ohms at 100 MHz with a tolerance of 25%. The component supports a maximum DC current of 3 A and has a maximum DC resistance of 25 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 0.65 mm in height.

Chip Ferrite Bead Feature Summary

• Provides high-frequency noise suppression for power lines through ferrite material absorption.
• Designed for surface-mount assembly on printed circuit boards.
• Capable of handling high direct current loads with minimal resistive voltage drop.

Chip Ferrite Bead Applications

• Power line filtering in electronic circuits
• Automotive usage applications

Chip Ferrite Bead Procurement Notes

Verify the specific suffix 'TZ1D' against official Murata documentation to confirm packaging and tape specifications. Ensure the selected variant matches the required reel or cut-tape format for your manufacturing process. Cross-reference the impedance and current ratings with the latest datasheet to prevent integration errors during procurement.

Chip Ferrite Bead Selection Notes

Select this component when a 0603 footprint is required for power line EMI suppression. The 3 A current rating suits moderate power applications, while the 120 Ohm impedance targets noise around 100 MHz. Verify that the 25 mOhm DC resistance meets the system's efficiency and thermal requirements before finalizing the design.

Chip Ferrite Bead Part Context

This part belongs to the Murata EMIFIL BLM18 series of ferrite beads. The series offers various impedance values and current ratings in standard 0603 packages. These components are widely used for suppressing electromagnetic interference in compact electronic designs where space constraints limit the use of larger filter components.

Chip Ferrite Bead Replacement Considerations

Publicly confirmed substitute part numbers are not available in the provided source data. Consult official Murata resources for qualified alternatives.