BLM18BB220SZ1D

Chip Ferrite Bead Overview

The Murata BLM18BB220SZ1D is a single-line chip ferrite bead in the BLM18_Z series, housed in a 0603 (1608 metric) surface-mount package. It provides an impedance of 22 Ohms at a test frequency of 100 MHz with a tolerance of ±25%. The component supports a maximum DC current of 500 mA and exhibits a maximum DC resistance of 250 mOhms. It operates within a temperature range of -55°C to +125°C and meets AEC-Q200 automotive qualification standards.

Chip Ferrite Bead Feature Summary

• Provides EMI noise suppression for high-speed signal lines through magnetic dissipation
• Automotive-grade reliability certified under AEC-Q200 standards
• Unshielded design suitable for compact surface-mount applications

Chip Ferrite Bead Applications

• EMI suppression filters for high-speed signal lines
• Noise filtering in automotive electronic circuits
• Power line decoupling in portable devices

Chip Ferrite Bead Procurement Notes

Verify the complete part number including the suffix SZ1D to ensure correct packaging and tape specifications. Confirm that the 0603 footprint matches the PCB layout requirements. Check for RoHS compliance status and ensure the supplier provides valid traceability documentation for automotive-grade components.

Chip Ferrite Bead Selection Notes

Select this component when a low-impedance path is required for noise attenuation without significant DC voltage drop. The 500 mA rating suits moderate current applications. Ensure the operating environment stays within the specified thermal limits and verify that the unshielded nature does not interfere with nearby sensitive circuitry.

Chip Ferrite Bead Part Context

This component belongs to the Murata BLM18_Z series of chip ferrite beads. The series offers various impedance values in a standardized 0603 package. These parts are designed for general-purpose EMI suppression in consumer electronics and automotive systems where space constraints require small form factors.

Chip Ferrite Bead Replacement Considerations

Direct substitutes include other Murata BLM18BB220 variants with identical electrical characteristics but different packaging options. Cross-brand replacements must match the 22 Ohm impedance at 100 MHz, 0603 footprint, and 500 mA current rating.