BLM21BB471SN1D

Chip Ferrite Bead Overview

The Murata BLM21BB471SN1D is a single-line ferrite bead chip designed for signal line noise suppression. It features an impedance of 470 Ohms at 100 MHz and operates within a temperature range of -55°C to +125°C. The component utilizes a 0805 (2012 metric) surface-mount package with dimensions of 2.00mm x 1.25mm x 1.05mm maximum height. It supports a maximum rated current of 400mA and has a maximum DC resistance of 400 milliohms.

Chip Ferrite Bead Feature Summary

• Provides effective high-frequency noise attenuation for sensitive signal lines
• Supports high-current operation suitable for power delivery networks
• Utilizes compact monolithic construction for dense PCB layouts

Chip Ferrite Bead Applications

• Noise filtering in general-purpose electronic circuits
• Signal integrity management in digital systems
• Power supply line decoupling applications

Chip Ferrite Bead Procurement Notes

Verify the specific electrical parameters against the official Murata datasheet, as ratings such as current handling and DC resistance may vary between similar series members like BLM21BD or BLM21RK. Confirm package dimensions and mounting requirements match the target PCB footprint before finalizing procurement decisions.

Chip Ferrite Bead Selection Notes

Select this component when a 0805 footprint is required for signal line filtering with moderate current capacity. Ensure the application environment stays within the specified -55°C to +125°C operating range. Compare impedance characteristics against other BLM21 variants to ensure compatibility with the target frequency spectrum.

Chip Ferrite Bead Part Context

This part belongs to the Murata EMIFIL BLM21 series of ferrite beads. The series offers various impedance and current ratings across different package sizes. The BLM21BB variant specifically targets applications requiring higher current tolerance compared to lower-rated counterparts in the same physical form factor.

Chip Ferrite Bead Replacement Considerations

BLM21BD471SN1D and BLM21RK471SN1D are related series members. Verify if their respective current ratings and DC resistance values meet the specific circuit requirements before substitution.