BLM21BD272SZ1L

Chip Ferrite Bead Overview

The Murata BLM21BD272SZ1L is a single-line ferrite bead in an 0805 (2012 metric) surface-mount package. It provides an impedance of 2700 Ω at 100 MHz with a rated current of 200 mA and a maximum DC resistance of 0.8 Ω. The component operates within a temperature range of -55°C to 125°C and meets the AEC-Q200 automotive qualification standard.

Chip Ferrite Bead Feature Summary

• Provides high-frequency noise suppression for single signal lines
• Automotive-grade reliability certified under AEC-Q200 standards
• Compact 0805 footprint suitable for space-constrained PCB layouts

Chip Ferrite Bead Applications

• Automotive safety systems
• Automotive powertrain circuits
• General automotive electronics

Chip Ferrite Bead Procurement Notes

Verify the specific suffix 'SZ1L' against official Murata documentation to confirm packaging, tape-and-reel specifications, and compliance status. Ensure the selected variant matches the required impedance tolerance and current rating for the target application circuit design.

Chip Ferrite Bead Selection Notes

Select this component when designing for automotive environments requiring robust EMI filtering on low-current signal lines. The 200 mA rating limits usage to sensitive data or control signals rather than power distribution paths. Confirm compatibility with the target frequency spectrum where 2700 Ω attenuation is necessary.

Chip Ferrite Bead Part Context

This part belongs to the Murata BLM21BD series, which focuses on automotive applications. The series utilizes specialized ferrite materials optimized for high-impedance performance in compact packages, ensuring stability across wide temperature ranges typical of vehicle electronic control units.

Chip Ferrite Bead Replacement Considerations

Direct substitutes include BLM21BD272SH1L and BLM21BD272SN1L from Murata, which share identical electrical characteristics but may differ in packaging format.