BLA31AG102SN4D

Chip Ferrite Bead Overview

The Murata BLA31AG102SN4D is a surface-mount ferrite bead array designed for electromagnetic interference suppression. It features four independent circuits within a 1206 (3216 metric) package. The component provides an impedance of 1 kOhms at 100 MHz with a maximum DC resistance of 450 milliohms. It supports a rated current of 50mA and operates reliably across a temperature range of -55°C to +125°C.

Chip Ferrite Bead Feature Summary

• Four-channel configuration for multi-line noise filtering
• High impedance performance at 100 MHz
• Compact 1206 footprint for space-constrained designs

Chip Ferrite Bead Applications

• Audio line noise filtering
• High-speed data line protection
• General-purpose EMI suppression in portable devices

Chip Ferrite Bead Procurement Notes

Verify the complete part number including the suffix SN4D to ensure correct packaging and specifications. Confirm RoHS compliance status and moisture sensitivity level requirements against specific project standards before finalizing procurement orders.

Chip Ferrite Bead Selection Notes

Select this component when four isolated filter lines are required in a single package. Ensure the 50mA current rating meets circuit demands to prevent saturation. Verify that the 1206 package dimensions fit the available PCB real estate and thermal constraints.

Chip Ferrite Bead Part Context

This part belongs to the Murata EMIFIL BLA31 series of chip ferrite bead arrays. These components are engineered for high-density applications requiring multiple filtered signals in minimal board space, offering consistent electrical characteristics across the series.

Chip Ferrite Bead Replacement Considerations

Check for equivalent impedance and current ratings in other manufacturers' 1206 quad ferrite arrays. Verify pinout compatibility and physical dimensions if substituting with different brands or series variants.