BLM31PG330SN1L

Chip Ferrite Bead Overview

The Murata BLM31PG330SN1L is a single-line ferrite bead in a 1206 (3216 metric) surface-mount package. It provides an impedance of 33 Ohms at 100 MHz with a maximum DC resistance of 9 mΩ and a rated current of 6 A. The component operates within a temperature range of -55°C to +125°C and measures 3.2 mm x 1.6 mm x 1.1 mm.

Chip Ferrite Bead Feature Summary

• Designed for EMI suppression on continuous voltage lines without requiring a ground connection
• Functions as a resistor at noise frequencies while maintaining signal waveform integrity
• Features a nickel barrier structure on external electrodes for superior soldering thermal resistance

Chip Ferrite Bead Applications

• Power supply circuits
• General use applications

Chip Ferrite Bead Procurement Notes

Verify the specific suffix SN1L against official Murata documentation to confirm the exact impedance, tolerance, and packaging configuration. Ensure the selected variant matches the required 6A current rating and 1206 footprint for the target design.

Chip Ferrite Bead Selection Notes

Select this component when high current handling up to 6A is required alongside moderate noise filtering. The low DC resistance minimizes power loss, while the absence of a ground pin simplifies layout in circuits with unstable grounding references.

Chip Ferrite Bead Part Context

This part belongs to the BLM31PG series of high-current ferrite beads from Murata Electronics. The series utilizes iron oxide materials to provide effective electromagnetic interference suppression in compact surface-mount packages suitable for dense PCB layouts.

Chip Ferrite Bead Replacement Considerations

Consult official Murata substitution guides for verified equivalents. Cross-referencing requires matching the 1206 footprint, 6A current rating, and 33 Ohm impedance at 100 MHz.