BLM18KG700WH1D

Chip Ferrite Bead Overview

The BLM18KG700WH1D is a single-line ferrite bead from the Murata EMIFIL BLM18KG series, designed for high-current power line filtering in compact mobile equipment. It features an EIA 0603 (1608 metric) surface-mount package with dimensions of 1.6 mm length, 0.8 mm width, and 0.6 mm height. The component provides an impedance of 70 Ohms at 100 MHz with a tolerance of 25%. It supports a maximum DC current of 1.65 A and has a maximum DC resistance of 47 mOhms. The device operates within a temperature range of -55°C to +125°C and holds AEC-Q200 qualification.

Chip Ferrite Bead Feature Summary

• High current handling capability suitable for power supply applications
• Low DC resistance reduces power consumption and extends battery life
• AEC-Q200 qualified for automotive reliability requirements
• Compact 0603 footprint enables space-saving designs

Chip Ferrite Bead Applications

• DC power line filtering for portable navigation devices
• Noise suppression in cellular phone power circuits
• Filtering for notebook PC power lines
• Audio system power line noise reduction

Chip Ferrite Bead Procurement Notes

Verify the suffix WH1D against official datasheets to confirm specific packaging and material constraints. Ensure the selected variant matches the required impedance tolerance and current rating for the target power rail. Cross-reference the AEC-Q200 status if automotive compliance is mandatory. Confirm RoHS3 compliance status prior to integration into regulated assemblies.

Chip Ferrite Bead Selection Notes

Select this component when space-constrained designs require high current capacity in a 0603 package. Compare the 47 mOhm DC resistance against circuit loss budgets. Evaluate the 1.65 A current rating against peak load requirements. Consider the 70 Ohm impedance at 100 MHz for targeted noise frequency suppression. Verify thermal performance within the specified operating temperature range.

Chip Ferrite Bead Part Context

This part belongs to the BLM18KG series, which offers enhanced current handling compared to conventional 0603 ferrite beads. The series is engineered to replace larger 0805 or 1206 components while maintaining low DC resistance. It targets applications requiring significant current flow alongside effective high-frequency noise attenuation in portable electronic devices.

Chip Ferrite Bead Replacement Considerations

BLM18KG700TH1D shares similar electrical characteristics but may differ in physical dimensions or packaging specifications. Verify dimensional compatibility and terminal configuration before substitution. Consult official documentation for any functional differences between suffix variants.