BLM21BD331SH1D

Chip Ferrite Bead Overview

The Murata BLM21BD331SH1D is a single-line ferrite chip bead designed for surface-mount applications in the 0805 (2012 metric) package. It provides an impedance of 330 Ohms at a test frequency of 100 MHz with a tolerance of 25%. The component supports a maximum DC current of 0.2 A and exhibits a maximum DC resistance of 0.3 Ohms. 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 high-frequency noise suppression through significant impedance characteristics at 100 MHz
• Engineered for automotive reliability with AEC-Q200 qualification compliance
• Utilizes a compact 0805 surface-mount footprint for efficient PCB integration

Chip Ferrite Bead Applications

• Automotive electronic circuit noise filtering
• Power line signal integrity protection
• High-frequency interference suppression in compact modules

Chip Ferrite Bead Procurement Notes

Verify the specific suffix against official Murata documentation to confirm exact impedance, current rating, and packaging specifications. Ensure the selected variant matches the required automotive grade and thermal performance for the target application environment before finalizing procurement.

Chip Ferrite Bead Selection Notes

Select this component when a low-current, high-impedance filter is required for automotive-grade designs. The 0.2 A rating limits suitability for high-power lines, making it appropriate for sensitive signal or low-power supply rail protection where strict EMI reduction is necessary.

Chip Ferrite Bead Part Context

This part belongs to the BLM21 series of EMIFIL ferrite beads from Murata Electronics. The series offers various impedance values and current ratings in standardized packages to address diverse electromagnetic interference challenges across consumer and industrial electronics sectors.

Chip Ferrite Bead Replacement Considerations

BLM21BD331SN1D is a confirmed substitute offering identical electrical characteristics and form factor.