BLM21HE802BH1L

Chip Ferrite Bead Overview

The Murata BLM21HE802BH1L is a single-line chip ferrite bead in the BLM21H series, housed in an 0805 (2012 metric) surface-mount package. It provides an impedance of 8000 ohms at a test frequency of 100 MHz with a tolerance of 25%. The component supports a maximum DC current of 650 mA and features a maximum DC resistance of 700 milliohms. It operates within a temperature range of -55°C to +150°C and holds AEC-Q200 qualification for automotive reliability.

Chip Ferrite Bead Feature Summary

• Provides high-impedance noise suppression for signal lines in compact SMD form factors
• Engineered for automotive applications with AEC-Q200 qualification standards
• Designed to minimize DC power loss through low-resistance construction

Chip Ferrite Bead Applications

• Automotive electronic circuit noise filtering
• High-speed signal line protection
• Power supply output filtering

Chip Ferrite Bead Procurement Notes

Verify the specific suffix against official Murata documentation to confirm impedance values and current ratings. Ensure the ordering code matches the required 0805 package dimensions and AEC-Q200 automotive grade specifications. Cross-reference datasheet parameters with design requirements before procurement.

Chip Ferrite Bead Selection Notes

Select this component when high attenuation is required on signal lines within space-constrained designs. The 0805 footprint allows for standard reflow soldering processes. Consider the 650 mA current rating to ensure the component does not saturate or overheat during normal operation while maintaining effective EMI suppression.

Chip Ferrite Bead Part Context

This part belongs to the Murata BLM21H series of ferrite beads, which are optimized for automotive electronics. The series offers various impedance levels in a standardized 0805 package, balancing performance with board space efficiency. These components are widely used in modern vehicle electronic control units and infotainment systems.

Chip Ferrite Bead Replacement Considerations

Consult official Murata substitution guides for equivalent parts within the BLM21 family. Verify that any alternative maintains the same 0805 footprint, AEC-Q200 qualification, and impedance characteristics at 100 MHz.