MI1806J800R-10

Overview

The MI1806J800R-10 is a single-line ferrite bead chip manufactured by Laird-Signal Integrity Products, designed for electromagnetic interference (EMI) suppression in power and signal circuits. Housed in an 1806 (4516 Metric) surface-mount package with dimensions of 4.50mm x 1.60mm and a maximum height of 1.85mm, this component provides an impedance of 78 Ohms at 100 MHz. It supports a maximum rated current of 1.0A and features a maximum DC resistance (DCR) of 30 milliohms. The device operates within a temperature range of -40°C to +125°C and complies with RoHS3 standards.

Feature Summary

• Provides effective EMI suppression for power and signal lines through high impedance characteristics at 100 MHz.
• Features low DC resistance to minimize voltage drop and power loss in high-current applications up to 1.0A.
• Constructed in a compact 1806 surface-mount footprint suitable for space-constrained PCB layouts.

Applications

• Power line filtering in portable electronic devices
• Signal line noise suppression in industrial control systems
• EMI mitigation in automotive electronics

Procurement Notes

Verify the specific impedance value of 78 Ohms at 100 MHz against design requirements. Confirm the 1.0A current rating and 30 milliohm DCR limits are sufficient for the target circuit. Ensure the 1806 package dimensions fit the available board space. Check for RoHS3 compliance if required by project specifications.

Selection Notes

Select this component when moderate current handling of 1.0A is required alongside significant high-frequency noise attenuation. The 1806 package offers a balance between current capacity and physical size compared to smaller footprints like 0805 or larger ones like 1210. Consider the 78 Ohm impedance profile for targeted frequency suppression rather than broadband filtering.

Part Context

This ferrite bead belongs to Laird's MI series, which focuses on signal integrity solutions. The 1806 size code indicates a metric dimension of 4516, distinguishing it from other series variants that may offer different current ratings or impedance profiles within the same manufacturer lineup.

Replacement Considerations

Publicly confirmed substitute part numbers are not available in the provided documentation. Engineers should consult official Laird catalogs for cross-references based on impedance, current, and package compatibility.

FAQ

What is the impedance value of the MI1806J800R-10 at 100 MHz?

The impedance is 78 Ohms at 100 MHz.

What is the maximum operating temperature for this ferrite bead?

The component operates within a temperature range of -40°C to +125°C.