BLM21AG471SH1D

Chip Ferrite Bead Overview

The Murata BLM21AG471SH1D is a single-line ferrite bead in an 0805 (2012 metric) surface-mount package. It provides 470 Ohms impedance at 100 MHz with a maximum DC resistance of 200 mOhms and supports a rated current of 700 mA. 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

• AEC-Q200 qualified for automotive reliability
• High current handling capability up to 700 mA
• Low DC resistance for minimal signal loss

Chip Ferrite Bead Applications

• Automotive electronic circuits
• Industrial control systems
• Consumer electronics noise suppression
• IoT device power filtering

Chip Ferrite Bead Procurement Notes

Verify the specific suffix SH1D against official Murata documentation to confirm packaging and terminal specifications. Ensure compatibility with existing PCB footprints and reflow soldering profiles. Confirm RoHS3 compliance status for target markets. Validate that the 700 mA rating aligns with circuit requirements under operating temperature conditions.

Chip Ferrite Bead Selection Notes

Select this component when high current capacity is required in a compact 0805 footprint. The AEC-Q200 qualification makes it suitable for automotive environments where reliability is critical. Compare impedance characteristics against other BLM21 series variants to ensure adequate noise attenuation at the target frequency without excessive voltage drop.

Chip Ferrite Bead Part Context

This part belongs to the Murata EMIFIL BLM21 series of chip ferrite beads. The series offers various impedance values and current ratings within standard industrial packages. The BLM21AG variant specifically targets applications requiring higher current tolerance compared to standard BLM21BD or BLM21RK models.

Chip Ferrite Bead Replacement Considerations

BLM21AG601BH1D offers similar form factor with 600 Ohms impedance. BLM21BD471SN1D provides equivalent impedance but lower current rating. Verify electrical parameters and physical dimensions before substitution.