BLA31BD601SN4D

Chip Ferrite Bead Overview

The BLA31BD601SN4D is a four-line ferrite chip bead array manufactured by Murata Electronics. It features a 1206 (3216 metric) surface-mount package with dimensions of 3.2 mm length, 1.6 mm width, and 1.6 mm height. The component provides an impedance of 600 Ohms at a test frequency of 100 MHz with a tolerance of 25%. It supports a maximum DC current of 100 mA and has a maximum DC resistance of 450 mOhms. The device operates within a temperature range of -55°C to +125°C.

Chip Ferrite Bead Feature Summary

• Four independent signal lines integrated into a single compact package for space-efficient circuit design.
• High-speed signal filtering capability provided by specific impedance characteristics at 100 MHz.
• Surface-mount construction compatible with standard SMD/SMT assembly processes.

Chip Ferrite Bead Applications

• Noise suppression on high-speed digital signal lines
• EMI suppression in portable electronic devices
• Signal integrity protection in data transmission circuits

Chip Ferrite Bead Procurement Notes

Verify the complete part number including the suffix SN4D to ensure correct packaging and specifications. Confirm RoHS compliance status through official manufacturer documentation prior to integration. Cross-reference impedance values against application requirements to validate noise suppression performance at target frequencies.

Chip Ferrite Bead Selection Notes

Select this component when four-channel noise filtering is required in a 1206 footprint. Ensure the 100 mA current rating meets the operational load of the protected signals. Compare DC resistance limits against power loss constraints in the specific circuit path.

Chip Ferrite Bead Part Context

This component belongs to the Murata BLA series of ferrite chip bead arrays. It serves as a direct replacement for discontinued parts such as the Taiyo Yuden BK32164W601-T. The BLA series is designed for general-purpose EMI suppression in consumer and industrial electronics requiring multi-line filtering.

Chip Ferrite Bead Replacement Considerations

The Taiyo Yuden BK32164W601-T is identified as a direct substitute. Verify pinout compatibility and physical dimensions before substitution.