BLM21SP102BH1D

Chip Ferrite Bead Overview

The Murata BLM21SP102BH1D is a single-channel ferrite chip bead in an 0805 (2012 metric) surface-mount package. It provides an impedance of 1 kOhms at 100 MHz with a 25% tolerance. The component supports a maximum DC current of 1.6A and has a maximum DC resistance of 0.12 Ohms. It operates within a temperature range of -55°C to +125°C.

Chip Ferrite Bead Feature Summary

• Provides high-frequency noise suppression through significant impedance at 100 MHz
• Designed for power line filtering applications in compact surface-mount layouts
• Constructed for reliability in automotive environments meeting AEC-Q200 standards

Chip Ferrite Bead Applications

• Power line filtering in electronic circuits
• Noise suppression in automotive electronics systems
• EMI reduction in portable devices requiring 0805 footprints

Chip Ferrite Bead Procurement Notes

Verify the specific suffix BH1D against official Murata documentation to confirm material composition and tape/reel specifications. Ensure the procurement source provides valid RoHS compliance data and confirms the component meets AEC-Q200 qualification requirements for automotive-grade reliability before finalizing orders.

Chip Ferrite Bead Selection Notes

Select this component when a 1 kOhm impedance at 100 MHz is required for noise attenuation on power lines carrying up to 1.6A. The 0805 package size suits designs with limited board space. Consider the 0.12 Ohm DC resistance impact on voltage drop and ensure the operating environment stays within the specified -55°C to +125°C thermal limits.

Chip Ferrite Bead Part Context

This part belongs to the EMIFIL BLM21 series, which offers various impedance values and current ratings in standardized packages. The SP designation indicates specific magnetic material properties optimized for power line applications. The BH1D suffix defines the terminal plating and packaging configuration for automated assembly processes.

Chip Ferrite Bead Replacement Considerations

Direct substitutes include other BLM21SP102 variants from Murata with identical electrical characteristics but different packaging or termination options. Cross-brand replacements require matching the 1 kOhm @ 100 MHz impedance curve, 1.6A current rating, and 0805 footprint dimensions.