BLM21BB221SH1D

Chip Ferrite Bead Overview

The Murata BLM21BB221SH1D is a single-line ferrite chip bead in the BLM21BB series, housed in an 0805 (2012 metric) surface-mount package. It provides 220 Ohms impedance at 100 MHz with a 25% tolerance. The component supports a maximum DC current of 500 mA and features a maximum DC resistance of 350 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

• Functions as a resistor at noise frequencies to minimize resonance risks
• Provides effective EMI suppression for high-speed signal lines
• Automotive-grade reliability through AEC-Q200 certification

Chip Ferrite Bead Applications

• High-speed signal line filtering
• EMI suppression filters
• Automotive electronic circuits

Chip Ferrite Bead Procurement Notes

Verify the specific suffix SH1D against official Murata documentation to confirm exact impedance and tolerance specifications. Ensure the procurement channel sources genuine components from authorized distributors to guarantee compliance with RoHS and REACH regulations. Cross-reference the part number with the latest datasheet to confirm availability status and manufacturing origin before finalizing orders.

Chip Ferrite Bead Selection Notes

Select this component when designing for 0805 footprint constraints requiring 220 Ohms attenuation at 100 MHz. The 500 mA current rating suits moderate power applications, while the low DC resistance minimizes voltage drop. Consider the AEC-Q200 qualification if the target environment demands automotive-grade thermal stability and long-term reliability under varying conditions.

Chip Ferrite Bead Part Context

This part belongs to the BLM21BB series of ferrite beads manufactured by Murata Electronics. The series utilizes specialized ferrite materials optimized for broadband noise suppression. The 0805 package size allows for compact PCB layouts, making it suitable for dense consumer electronics and automotive modules where space efficiency is critical alongside electromagnetic interference control.

Chip Ferrite Bead Replacement Considerations

Consult the official Murata catalog for direct substitutes within the BLM21BB series that match the 220 Ohm impedance and 0805 package dimensions. Verify equivalent current ratings and thermal characteristics before swapping parts to ensure circuit performance remains unaffected.