LI0402E300R-10

Chip Ferrite Bead Overview

The LI0402E300R-10 is a single-line ferrite bead chip manufactured by Laird-Signal Integrity Products, designed for surface-mount assembly in the 0402 (1005 metric) package. It provides an impedance of 30 Ohms at 100 MHz with a maximum DC resistance of 300 milliohms and a rated current of 500 mA. The component operates within a temperature range of -40°C to +125°C and measures 1.01mm in length by 0.50mm in width.

Chip Ferrite Bead Feature Summary

• Provides electromagnetic interference filtering for power and signal lines
• Compact surface-mount design suitable for space-constrained applications

Chip Ferrite Bead Applications

• Power line filtering
• Signal line filtering

Chip Ferrite Bead Procurement Notes

Verify the specific manufacturer part number against official datasheets to ensure compatibility with design requirements. Confirm that the 0402 package dimensions and electrical specifications match the target circuit layout. Check for RoHS compliance status if required by project regulations. Ensure availability through authorized distributors to guarantee authenticity and traceability.

Chip Ferrite Bead Selection Notes

Select this component when a low-profile ferrite bead is needed for high-frequency noise suppression in compact circuits. The 30 Ohm impedance at 100 MHz targets specific EMI frequencies. The 500 mA current rating must exceed the maximum operating current of the protected line. Consider the 300 milliohm DCR impact on voltage drop in sensitive power rails.

Chip Ferrite Bead Part Context

This component belongs to the LI series of ferrite beads from Laird-Signal Integrity Products. It is part of a family of passive components used for EMI suppression. The 0402 footprint allows for dense PCB layouts. Similar parts in the series offer different impedance values or current ratings for varied filtering needs.

Chip Ferrite Bead Replacement Considerations

Direct substitutes may include other 0402 ferrite beads with similar 30 Ohm @ 100 MHz impedance and 500 mA current ratings. Verify pinout compatibility and physical dimensions before substitution. Consult manufacturer cross-reference lists for validated alternatives.

Chip Ferrite Bead FAQ

What is the impedance value of the LI0402E300R-10 at 100 MHz?

The impedance is 30 Ohms at 100 MHz.

What is the maximum DC resistance of this ferrite bead?

The maximum DC resistance is 300 milliohms.