BLM21BB201SZ1D

Chip Ferrite Bead Overview

The Murata BLM21BB201SZ1D is a single-line ferrite bead chip designed for electromagnetic interference suppression in signal lines. It features a 0805 (2012 metric) surface-mount package with dimensions of 2.00mm x 1.25mm and a maximum height of 1.05mm. The component provides an impedance of 20 Ohms at 100 MHz, supporting a maximum DC current of 2A. Its maximum DC resistance is 10 milliohms, ensuring minimal signal loss. It operates within a temperature range of -55°C to +125°C and complies with RoHS3 standards.

Chip Ferrite Bead Feature Summary

• Provides effective high-frequency noise attenuation for sensitive signal lines
• Supports high current handling capabilities suitable for power-adjacent signal paths
• Offers low insertion loss due to minimal DC resistance characteristics

Chip Ferrite Bead Applications

• Noise suppression on USB data lines
• EMI filtering for clock signals in digital circuits
• Signal line protection in automotive infotainment systems

Chip Ferrite Bead Procurement Notes

Verify the complete part number including suffixes to ensure correct impedance and current ratings. Confirm package compatibility with PCB footprint designs. Check for RoHS3 compliance documentation if required by specific regional regulations. Validate supplier authenticity through authorized distribution channels to prevent counterfeit components.

Chip Ferrite Bead Selection Notes

Select this component when low DC resistance is critical for maintaining signal integrity in high-current applications. The 0805 package offers a balance between thermal performance and board space efficiency. Ensure the target frequency aligns with the 100 MHz impedance specification for optimal filtering effectiveness.

Chip Ferrite Bead Part Context

This part belongs to the Murata EMIFIL BLM21 series, which focuses on compact ferrite beads for consumer and industrial electronics. The BB suffix indicates specific material properties optimized for general-purpose signal line filtering. The SZ1D suffix denotes the standard tape and reel packaging configuration for automated assembly processes.

Chip Ferrite Bead Replacement Considerations

BLM21BB201SN1D shares identical electrical specifications but may differ in packaging or suffix coding. Verify physical dimensions and terminal configurations before substitution to ensure mechanical compatibility.