BLM31KN102SH1K

Chip Ferrite Bead Overview

The Murata BLM31KN102SH1K is a single-line power line ferrite bead in a 1206 (3216 metric) surface-mount package. It provides an impedance of 1 kOhm at 100 MHz with a maximum DC resistance of 75 milliohms and a rated current of 2 Amperes. The component operates within a temperature range of -55°C to +125°C and meets the AEC-Q200 automotive qualification standard.

Chip Ferrite Bead Feature Summary

• Designed for EMI suppression on power lines, functioning as a resistor at noise frequencies while maintaining signal integrity.
• Constructed without requiring a ground connection, making it suitable for circuits with unstable grounding.
• Features a nickel barrier structure on external electrodes to provide excellent thermal resistance during soldering.

Chip Ferrite Bead Applications

• Automotive electronic systems requiring AEC-Q200 compliance
• Power line filtering in AI server infrastructure
• General-purpose EMI suppression in high-current applications

Chip Ferrite Bead Procurement Notes

Verify the specific suffix SH1K against official Murata documentation to confirm packaging and tape-and-reel specifications. Ensure the selected variant matches the required impedance tolerance and current rating for the target circuit design before finalizing procurement orders.

Chip Ferrite Bead Selection Notes

Select this component when designing for automotive or high-reliability environments necessitating AEC-Q200 certification. The 1206 package supports a 2A current rating, suitable for power line applications where low DC resistance is critical to minimize voltage drop and heat generation.

Chip Ferrite Bead Part Context

This part belongs to the Murata BLM series of chip ferrite beads. The BLM31KN sub-series specifically targets high-rated current applications. These components are engineered to suppress electromagnetic interference in power supply lines without distorting the desired signal waveform.

Chip Ferrite Bead Replacement Considerations

Consult official Murata substitution guides for equivalent parts within the BLM31 family. Verify that any alternative maintains the same 1206 footprint, 1k Ohm impedance at 100 MHz, and 2A current handling capability.