BLM18KG700TN1D

Chip Ferrite Bead Overview

The Murata BLM18KG700TN1D is a chip ferrite bead in the 0603 (1608 metric) surface-mount package. It provides an impedance of 70 Ohms at a test frequency of 100 MHz with a tolerance of 25%. The component supports a maximum DC current of 3.5 A and features a maximum DC resistance of 22 mOhms. It operates within a temperature range of -55°C to +125°C. The physical dimensions are 1.6 mm in length, 0.8 mm in width, and 0.8 mm in height.

Chip Ferrite Bead Feature Summary

• Provides high current handling capability up to 3.5 A for power line filtering applications
• Delivers low DC resistance to minimize power loss and extend battery life in portable devices
• Offers compact 0603 footprint suitable for space-constrained mobile equipment designs

Chip Ferrite Bead Applications

• DC power line filtering for cellular phones
• Noise suppression for portable navigation devices
• EMI filtering in notebook PCs and personal digital assistants
• Power supply noise reduction in audio systems

Chip Ferrite Bead Procurement Notes

Verify the specific suffix TN1D against official Murata documentation to confirm packaging type and tape/reel specifications. Ensure the selected variant matches the required impedance tolerance and current rating for the target circuit design before finalizing procurement orders.

Chip Ferrite Bead Selection Notes

Select this component when designing circuits requiring high current capacity in a small 0603 form factor. Compare its 3.5 A rating and 22 mOhms DCR against lower-current alternatives to ensure adequate performance margins for power delivery lines while maintaining effective EMI suppression characteristics.

Chip Ferrite Bead Part Context

This part belongs to the BLM18KG series of high-current power ferrite beads developed by Murata Electronics. The series is engineered to handle significantly higher currents than conventional 0603 beads, offering performance comparable to larger 0805 or 1206 packages while reducing overall system cost and board space requirements.

Chip Ferrite Bead Replacement Considerations

Consult official Murata substitution guides for verified equivalents. Cross-reference impedance values and current ratings carefully when evaluating alternative ferrite beads from other manufacturers to ensure functional compatibility.