LI0402B301R-10

Chip Ferrite Bead Overview

The LI0402B301R-10 is a single-line ferrite bead from the Laird-Signal Integrity Products LI series, designed for EMI filtering in power and signal lines. It features a 0402 (1005 metric) surface-mount package with dimensions of 1.00mm x 0.50mm and a maximum height of 0.50mm. The component provides an impedance of 300 Ohms at 100 MHz and has a maximum DC resistance of 800 milliohms. It supports a rated current of 200mA and operates within a temperature range of -40°C to +125°C.

Chip Ferrite Bead Feature Summary

• Provides high impedance for effective attenuation of electromagnetic interference in high-frequency circuits.
• Compact 0402 footprint enables dense layout integration on space-constrained printed circuit boards.
• Capable of handling specified current loads while maintaining low DC resistance for minimal signal loss.

Chip Ferrite Bead Applications

• Power line filtering
• Signal line filtering

Chip Ferrite Bead Procurement Notes

Verify the specific suffix 'R-10' against official manufacturer documentation to confirm packaging details and RoHS compliance status. Ensure the selected variant matches the required impedance and current ratings for the target application. Cross-reference the part number with the latest Laird datasheets to confirm availability and any potential obsolescence notices before finalizing procurement plans.

Chip Ferrite Bead Selection Notes

Select this component when a compact form factor is required for filtering power or signal lines carrying up to 200mA. The 300 Ohm impedance at 100 MHz makes it suitable for suppressing noise in digital circuits. Consider the 800 milliohm DCR limit to ensure voltage drop remains within acceptable bounds for the specific power rail design.

Chip Ferrite Bead Part Context

This ferrite bead belongs to the LI series from Laird-Signal Integrity Products, which specializes in passive components for signal integrity. The LI series offers various impedance values and current ratings across different standard package sizes, allowing designers to tailor EMI suppression solutions to specific board layouts and electrical requirements.

Chip Ferrite Bead Replacement Considerations

LI0402B301R-00 is listed as an obsolete direct substitute option.

Chip Ferrite Bead FAQ

What is the maximum operating temperature for the LI0402B301R-10?

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

Is this component suitable for both power and signal lines?

Yes, the LI0402B301R-10 is explicitly categorized for use in both power and signal line filtering applications.