BLM18KG221WH1D

Chip Ferrite Bead Overview

The Murata BLM18KG221WH1D is a single-line power line ferrite bead in a 0603 (1608 metric) surface-mount 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 1.4 A and exhibits a maximum DC resistance of 80 mOhms. It operates within a temperature range of -55°C to +125°C, measuring 1.6 mm in length, 0.8 mm in width, and 0.8 mm in height.

Chip Ferrite Bead Feature Summary

• Provides high impedance for effective noise suppression on power lines
• Designed for surface-mount assembly in compact electronic circuits
• Capable of handling significant direct current loads without saturation

Chip Ferrite Bead Applications

• Power line filtering in automotive electronics
• Noise suppression in portable communication devices
• EMI reduction in industrial control systems

Chip Ferrite Bead Procurement Notes

Verify the specific suffix WH1D against official Murata documentation to confirm exact impedance and current ratings. Ensure the procurement source provides valid RoHS compliance data and AEC-Q200 qualification records if required for automotive applications. Cross-reference the manufacturer part number to avoid confusion with similar series variants.

Chip Ferrite Bead Selection Notes

Select this component when a 0603 footprint is required for power line noise attenuation. The 1.4 A current rating suits moderate power applications, while the 220 Ohm impedance targets specific frequency bands. Consider thermal management capabilities within the -55°C to +125°C operating range during circuit design.

Chip Ferrite Bead Part Context

This ferrite bead belongs to the BLM18 series, which utilizes Murata's proprietary monolithic ferrite technology. The series is engineered for high-density mounting on printed circuit boards. The KG designation typically indicates specific material characteristics optimized for power line applications within the broader ferrite chip bead portfolio.

Chip Ferrite Bead Replacement Considerations

Publicly confirmed substitute part numbers are not available in the provided reference data. Verify compatibility with alternative components by matching impedance curves, current ratings, and physical dimensions.