BLM03HB401SN1D

Chip Ferrite Bead Overview

The Murata BLM03HB401SN1D is a single-type chip ferrite bead in the EMIFIL BLM03HB series. It features a 0201 (0603 metric) SMD/SMT package with dimensions of 0.6 mm length, 0.3 mm width, and 0.3 mm height. The component provides an impedance of 400 Ohms at a test frequency of 100 MHz with a tolerance of ±25%. It supports a maximum DC current of 125 mA and has a maximum DC resistance of 2.8 Ohms. The operating temperature range spans from -55°C to +125°C.

Chip Ferrite Bead Feature Summary

• Provides high impedance for effective electromagnetic interference suppression in compact designs
• Supports surface mount technology for automated assembly processes
• Maintains stable performance across a wide industrial temperature range

Chip Ferrite Bead Applications

• General electronics signal line filtering
• Power supply noise attenuation
• High-density circuit board layouts requiring small footprints

Chip Ferrite Bead Procurement Notes

Verify the specific suffix SN1D against official Murata documentation to confirm packaging details and compliance status. Ensure that the selected variant matches the required impedance tolerance and current rating specifications for the target application circuit design.

Chip Ferrite Bead Selection Notes

Select this component when space constraints require a 0201 footprint while maintaining significant noise suppression capabilities. Evaluate the 125 mA current rating against peak load requirements to prevent saturation. Confirm compatibility with standard reflow soldering profiles for reliable attachment.

Chip Ferrite Bead Part Context

This part belongs to the BLM03HB series, designed for general-purpose EMI suppression. It utilizes Murata's proprietary ferrite material formulation to achieve high impedance characteristics within a miniature form factor suitable for modern portable and dense electronic devices.

Chip Ferrite Bead Replacement Considerations

Cross-reference with other BLM03HB series variants such as BLM03HB331SN1D or BLM03HB601SN1D if different impedance levels are required while retaining the same physical package and electrical interface.