BLM18BB221SH1D

Chip Ferrite Bead Overview

The Murata BLM18BB221SH1D is a single-line ferrite chip bead in the EMIFIL BLM18BB series, housed in an SMD 0603 (1608 metric) package. It provides an impedance of 220 Ohms at a test frequency of 100 MHz with a tolerance of 25%. The component supports a maximum DC current of 450 mA and exhibits a maximum DC resistance of 450 mOhms. It operates within a temperature range of -55°C to +125°C and meets AEC-Q200 automotive qualification standards.

Chip Ferrite Bead Feature Summary

• Provides high-impedance attenuation for high-speed signal lines to suppress electromagnetic interference.
• Features a compact surface-mount design suitable for space-constrained printed circuit board layouts.
• Complies with AEC-Q200 reliability standards for use in automotive electronic systems.

Chip Ferrite Bead Applications

• High-speed signal line filtering
• Automotive power supply circuits
• EMI suppression filters

Chip Ferrite Bead Procurement Notes

Verify the specific suffix SH1D against official Murata documentation to confirm packaging configuration and terminal plating specifications. Ensure the selected variant matches the required impedance tolerance and current rating for the target application environment before finalizing procurement orders.

Chip Ferrite Bead Selection Notes

Select this component when a 0603 footprint is required for signal integrity management. Compare the 450 mA saturation current against the peak load requirements of the circuit. Consider the 450 mOhm DC resistance impact on voltage drop if used in low-voltage power distribution paths.

Chip Ferrite Bead Part Context

This part belongs to the Murata EMIFIL BLM18BB series of ferrite beads. These components are engineered for noise suppression in digital circuits. The BLM18BB series offers various impedance values within the standard 0603 case size, providing designers with options for different frequency attenuation profiles.

Chip Ferrite Bead Replacement Considerations

Check for alternative suffixes such as SN1D or SG1D from the same manufacturer, which may offer different packaging formats or material compositions while maintaining identical electrical characteristics.

Chip Ferrite Bead FAQ

What is the test frequency for the specified impedance?

The impedance value of 220 Ohms is measured at a test frequency of 100 MHz.

Is this component qualified for automotive applications?

Yes, the BLM18BB221SH1D meets the AEC-Q200 qualification standard for passive components in automotive electronics.