BLM21SP331BH1D

Chip Ferrite Bead Overview

The Murata BLM21SP331BH1D is a single-line ferrite chip bead in the BLM21_H series, housed in an 0805 (2012 metric) surface-mount package. It provides an impedance of 330 Ohms with a tolerance of 25%. The component supports a maximum DC current of 2.8 A and maintains a maximum DC resistance of 40 mΩ. It operates within a temperature range of -55°C to +150°C.

Chip Ferrite Bead Feature Summary

• High current handling capability suitable for power line applications
• Extended high-temperature operation up to 150°C
• Compact 0805 footprint for space-constrained designs

Chip Ferrite Bead Applications

• Power supply noise suppression
• EMI filtering in high-current circuits

Chip Ferrite Bead Procurement Notes

Verify the specific suffix BH1D against official Murata documentation to confirm packaging details and compliance status. Ensure the selected variant matches the required operating temperature range and current rating for the target application environment before finalizing procurement orders.

Chip Ferrite Bead Selection Notes

Select this component when high DC current capacity and elevated temperature stability are required. The 0805 package offers a balance between current handling and board space. Compare impedance characteristics against other BLM21 series variants to ensure compatibility with the specific frequency spectrum of the noise being suppressed.

Chip Ferrite Bead Part Context

This part belongs to the Murata EMIFIL BLM21 series of ferrite beads. The series includes various impedance and current ratings across different package sizes. The BLM21_H designation indicates specific material properties optimized for high-temperature performance compared to standard industrial grade components.

Chip Ferrite Bead FAQ

What is the maximum DC current rating for this component?

The maximum DC current rating is 2.8 A.

Does this component support automotive qualification?

Official specifications for the BLM21SP331BH1D do not explicitly list AEC-Q200 certification; verify specific automotive requirements with manufacturer data.