BLM21PG331SZ1D

Chip Ferrite Bead Overview

The Murata BLM21PG331SZ1D is a single-line ferrite bead in an 0805 (2012 metric) surface-mount package. It provides 330 Ohms impedance at 100 MHz with a maximum DC resistance of 70 mOhms and a rated current of 1.5A. The component operates between -55°C and 125°C, meets AEC-Q200 automotive qualification standards, and complies with RoHS directives.

Chip Ferrite Bead Feature Summary

• Automotive-grade reliability certified to AEC-Q200 standards for power line noise suppression
• Compact 0805 footprint designed for high-density PCB layouts
• Low DC resistance minimizes voltage drop in power distribution circuits

Chip Ferrite Bead Applications

• Power supply input filtering
• EMI suppression in automotive infotainment systems
• Noise reduction on digital signal lines

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 AEC-Q200 qualification status for automotive applications. Cross-reference the impedance tolerance and DC resistance values with the latest datasheet before finalizing procurement orders.

Chip Ferrite Bead Selection Notes

Select this component when space constraints require an 0805 package for power line filtering. The 1.5A current rating suits moderate power applications, while the 330 Ohm impedance targets high-frequency noise above 100 MHz. Verify thermal management requirements given the 125°C maximum operating temperature limit.

Chip Ferrite Bead Part Context

This part belongs to the BLM21PG series, Murata's automotive-qualified ferrite bead line. The series offers various impedance values within the same 0805 form factor, allowing designers to standardize footprints across different noise suppression requirements in vehicle electronics.

Chip Ferrite Bead Replacement Considerations

Consult Murata's official substitution guide for equivalent parts within the BLM21 series. Verify that any alternative maintains the same 0805 dimensions, 1.5A current rating, and AEC-Q200 certification to ensure mechanical and electrical compatibility.