BLA2AAG221SN4D

Chip Ferrite Bead Overview

BLA2AAG221SN4D is a ferrite bead chip array manufactured by Murata Electronics. It features four signal lines within an 0804 (2010 metric) surface-mount package. The component provides an impedance of 220 Ohms at 100 MHz with a maximum DC resistance of 700 milliohms. It supports a rated current of 50mA and operates between -55°C and +125°C.

Chip Ferrite Bead Feature Summary

• Integrated four-channel signal line filtering in a compact footprint
• High impedance performance for EMI suppression at 100 MHz
• Low DC resistance to minimize signal loss in power or data paths

Chip Ferrite Bead Applications

• EMI suppression filters for audio lines
• General-purpose noise filtering in portable devices
• Signal integrity protection in high-density circuit boards

Chip Ferrite Bead Procurement Notes

Verify the specific ordering suffix SN4D against the manufacturer's official datasheet to ensure correct packaging and pin configuration. Confirm RoHS3 compliance status as required by project specifications. Cross-reference the DigiKey part number 490-11919-1-ND for accurate distributor identification and availability checks.

Chip Ferrite Bead Selection Notes

Select this component when multi-line noise attenuation is required in space-constrained designs. The 0804 package offers a balance between thermal performance and board area efficiency. Ensure the 50mA current rating meets the operational requirements of the target circuit without saturation.

Chip Ferrite Bead Part Context

This part belongs to the Murata EMIFIL BLA2 series, designed specifically for high-density applications. It serves as a specialized solution for suppressing electromagnetic interference in multiple signal lines simultaneously, differing from single-line ferrite beads by integrating four channels into one package.

Chip Ferrite Bead Replacement Considerations

BLA2ABB221SN4D is a parameter-equivalent alternative from Murata. Verify that the 900 milliohm DC resistance of the substitute aligns with the design's power budget and signal integrity requirements before substitution.