BLM21SP471SZ1D

Chip Ferrite Bead Overview

The Murata BLM21SP471SZ1D is a single-line chip ferrite bead in the EMIFIL BLM21 series, housed in an 0805 (2012 metric) surface-mount package. It provides 470 Ohms impedance at 100 MHz with a 25% tolerance and supports a maximum DC current of 2.5A. The component features a maximum DC resistance of 400 mOhms and operates within a temperature range of -55°C to +125°C. It meets AEC-Q200 automotive qualification standards.

Chip Ferrite Bead Feature Summary

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

Chip Ferrite Bead Applications

• Power line filtering in automotive electronic systems
• High-frequency noise suppression in consumer electronics
• Signal integrity management in industrial equipment

Chip Ferrite Bead Procurement Notes

Verify the suffix Z1D confirms the specific impedance and packaging configuration. Confirm AEC-Q200 compliance if automotive deployment is required. Check RoHS status against project specifications. Ensure the 2.5A current rating aligns with circuit load requirements before finalizing procurement.

Chip Ferrite Bead Selection Notes

Select this component when 470 Ohms attenuation at 100 MHz is necessary for power rail noise reduction. The 2.5A current capacity suits moderate-power applications. The 0805 size offers a balance between thermal performance and board space efficiency compared to smaller packages.

Chip Ferrite Bead Part Context

This part belongs to the Murata BLM21 series of EMIFIL ferrite beads. The series includes various impedance ratings and current capacities within the same 0805 form factor. The SP suffix typically denotes specific material characteristics optimized for power line applications.

Chip Ferrite Bead Replacement Considerations

Cross-reference other BLM21SP variants with matching 470 Ohm impedance and 2.5A current ratings. Verify pin compatibility and physical dimensions before substitution.