BLM21BB050SZ1D

Chip Ferrite Bead Overview

The Murata BLM21BB050SZ1D is a single-line ferrite bead in the EMIFIL BLM21 series, housed in an 0805 (2012 metric) surface-mount package. It provides 5 Ohms impedance at 100 MHz with a maximum DC resistance of 20 milliohms and a rated current of 1A. The component operates within a temperature range of -55°C to 125°C and measures 2.00mm x 1.25mm x 0.041 inches.

Chip Ferrite Bead Feature Summary

• Provides EMI suppression for high-speed signal lines
• Supports automotive applications via AEC-Q200 qualification
• Offers low DC resistance for minimal signal loss

Chip Ferrite Bead Applications

• Automotive electronic systems
• High-speed digital circuit noise filtering
• Portable device power line conditioning

Chip Ferrite Bead Procurement Notes

Verify the suffix 'SZ1D' against official Murata documentation to confirm specific packaging and tape-and-reel specifications. Ensure the selected variant matches the required 0805 footprint and 1A current rating for your design. Cross-reference the datasheet for precise impedance tolerances and thermal characteristics before finalizing procurement orders.

Chip Ferrite Bead Selection Notes

Select this component when a 5 Ohm impedance at 100 MHz is required for single-line noise suppression. The 0805 package suits space-constrained designs needing 1A current handling. Verify that the low DCR meets system voltage drop requirements and that the -55°C to 125°C range covers operational extremes.

Chip Ferrite Bead Part Context

Part of the Murata EMIFIL BLM21 family, designed for compact EMI suppression. The BLM21BB050SZ1D specifically targets automotive and industrial markets requiring robust noise filtering in small form factors. It complements other BLM21 variants offering different impedance levels for diverse frequency attenuation needs.

Chip Ferrite Bead Replacement Considerations

BLM21BB050SN1D offers identical electrical performance but differs in physical height (1.45mm vs 1.05mm). Verify mechanical clearance constraints before substituting. Other BLM21BB series parts provide alternative impedance values if filtering requirements change.

Chip Ferrite Bead FAQ

Is the BLM21BB050SZ1D qualified for automotive use?

Yes, the BLM21BB series is qualified under AEC-Q200 standards for automotive electronics.

What is the maximum operating temperature?

The component supports a maximum operating temperature of 125°C.