BLM21BD182SH1D

Chip Ferrite Bead Overview

The Murata BLM21BD182SH1D is a single ferrite chip bead in an 0805 (2012 metric) surface-mount package. It provides an impedance of 1800 ohms at a test frequency of 100 MHz with a tolerance of 25%. The component supports a maximum DC current of 200 mA and has a maximum DC resistance of 800 milliohms. It operates within a temperature range of -55°C to +125°C and meets the AEC-Q200 qualification standard for automotive applications.

Chip Ferrite Bead Feature Summary

• Provides high-impedance EMI suppression for differential mode noise filtering
• Designed for surface-mount assembly on printed circuit boards
• Qualified for automotive electronic environments

Chip Ferrite Bead Applications

• Automotive electronic circuit noise suppression
• High-frequency signal line filtering
• Power supply line EMI reduction

Chip Ferrite Bead Procurement Notes

Verify the specific suffix SH1D against official Murata documentation to confirm packaging details, as ordering suffixes define reel specifications. Ensure the selected variant matches the required impedance tolerance and current rating for the target application circuit design.

Chip Ferrite Bead Selection Notes

Select this component when a 0805 footprint is required for high-impedance filtering. The 200 mA current rating limits suitability for high-power lines. Verify that the 800 milliohm DC resistance aligns with the voltage drop constraints of the specific power or signal path being filtered.

Chip Ferrite Bead Part Context

This part belongs to the Murata BLM21BD series of ferrite beads. These components are engineered for general-purpose electromagnetic interference suppression in compact electronic designs. The series offers various impedance values within the standardized 0805 case size to accommodate different filtering requirements.

Chip Ferrite Bead Replacement Considerations

Direct substitutes include other 0805 ferrite beads with 1800 ohms impedance at 100 MHz, such as the BLM21BD182SN1L. Verify that alternative parts match the 200 mA current rating and 800 milliohm resistance specifications before integration.