BLM31KN102SN1L

Chip Ferrite Bead Overview

The Murata BLM31KN102SN1L is a single-channel ferrite chip bead designed for surface-mount technology in the 1206 (3216 metric) package. It provides an impedance of 1 kOhms at a test frequency of 100 MHz with a tolerance of 25%. The component supports a maximum DC current of 2 A and features a maximum DC resistance of 75 mOhms. It operates within a temperature range of -55°C to +125°C, with physical dimensions of 3.2 mm length, 1.6 mm width, and a maximum height of 1.80 mm.

Chip Ferrite Bead Feature Summary

• High-rated current capability suitable for power line filtering applications
• Single-channel design for compact circuit integration
• Surface-mount construction for automated assembly processes

Chip Ferrite Bead Applications

• Power supply noise suppression
• Battery charger circuits
• Portable electronic devices
• Energy-efficient system designs

Chip Ferrite Bead Procurement Notes

Verify the specific suffix codes against official Murata documentation to confirm exact impedance and current ratings. Ensure the selected variant matches the required package dimensions and thermal characteristics for the target application environment. Cross-reference part numbers with authorized distributors to avoid counterfeit components.

Chip Ferrite Bead Selection Notes

Select this component when high current handling is required alongside significant high-frequency noise attenuation. The 1206 package offers a balance between current capacity and board space efficiency. Consider the 75 mOhm DC resistance impact on voltage drop when designing low-voltage power rails.

Chip Ferrite Bead Part Context

This component belongs to the BLM31KN series, which is characterized by high rated current capabilities. It is specifically engineered for use in AI servers and other demanding electronic systems where robust power line filtering is essential. The series utilizes advanced ferrite materials to maintain performance under high load conditions.

Chip Ferrite Bead Replacement Considerations

Check for alternative part numbers within the BLM31KN family that offer different impedance values or current ratings while maintaining the same 1206 footprint. Verify compatibility with existing PCB footprints before substitution.