BLM31PG330SH1L

Chip Ferrite Bead Overview

The Murata BLM31PG330SH1L is a surface-mount ferrite bead from the BLM31PG series, designed for EMI suppression in power lines. It features a 1206 (3216 metric) package with dimensions of 3.2mm length, 1.6mm width, and 1.1mm height. The component provides an impedance of 33 Ω at 100 MHz and supports a rated current of 6A. Its maximum DC resistance is 9mΩ, ensuring minimal signal loss. Operating temperatures range from -55°C to +125°C. The device utilizes a nickel barrier structure on external electrodes for excellent solderability and does not require a ground connection.

Chip Ferrite Bead Feature Summary

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

Chip Ferrite Bead Applications

• Power supply circuits
• General use applications

Chip Ferrite Bead Procurement Notes

Verify the specific suffix against official Murata documentation to confirm impedance tolerance and packaging details. Ensure the selected variant matches the required current rating and impedance specifications for the target application. Cross-reference part numbers with authorized distributors to avoid counterfeit components. Confirm RoHS and REACH compliance status through the manufacturer's latest datasheet before procurement.

Chip Ferrite Bead Selection Notes

Select this component when high current handling up to 6A is required in a compact 1206 footprint. The low DC resistance minimizes voltage drop in power lines. Consider the temperature range and impedance characteristics at the target frequency. Verify that the single-type configuration meets the circuit's EMI filtering requirements without necessitating additional grounding paths.

Chip Ferrite Bead Part Context

This component belongs to the Murata BLM31PG series of chip ferrite beads. The series is characterized by high current capability and robust construction suitable for power line applications. The BLM31PG variants are engineered to suppress electromagnetic interference in sensitive electronic circuits while maintaining signal integrity.

Chip Ferrite Bead Replacement Considerations

BLM31PG330SN1L is a confirmed substitute within the same series offering identical electrical characteristics.