LI0201B121R-10

Chip Ferrite Bead Overview

The LI0201B121R-10 is a single-line ferrite bead chip from Laird-Signal Integrity Products, designed for power and signal line filtering. It features a 0201 (0603 metric) surface-mount package with dimensions of 0.024 inches in length and 0.012 inches in width. The component provides an impedance of 120 Ohms at 100 MHz. It supports a maximum DC current of 200 mA and has a maximum DC resistance of 800 milliohms. The device operates within a temperature range of -40°C to 125°C.

Chip Ferrite Bead Feature Summary

• Provides electromagnetic interference suppression for high-frequency noise on power and signal lines
• Utilizes a compact monolithic ceramic construction suitable for dense surface-mount layouts
• Maintains stable electrical characteristics across a wide industrial operating temperature range

Chip Ferrite Bead Applications

• Power supply input filtering for portable electronic devices
• Signal line noise suppression in high-speed digital circuits
• EMI mitigation in compact consumer electronics assemblies

Chip Ferrite Bead Procurement Notes

Verify the specific manufacturer datasheet to confirm exact electrical tolerances and material compliance status before integration. Ensure that the selected packaging format aligns with automated assembly requirements. Cross-reference the part number against official distributor catalogs to validate current availability and lead times. Confirm that the thermal management capabilities meet the target application's operational constraints.

Chip Ferrite Bead Selection Notes

Select this component when space-constrained designs require effective high-frequency noise attenuation. The 0201 footprint offers a balance between current handling capability and minimal board area consumption. Consider the 200 mA rating to ensure adequate margin for peak load conditions. Evaluate the 120 Ohm impedance profile against the specific frequency spectrum of the noise sources present in the circuit design.

Chip Ferrite Bead Part Context

This ferrite bead belongs to the LI series of EMI filtering components manufactured by Laird-Signal Integrity Products. The series includes various impedance values and package sizes tailored for different signal integrity requirements. These components are engineered to suppress common-mode and differential-mode noise in modern electronic systems without significantly impacting the desired signal transmission.

Chip Ferrite Bead FAQ

What is the impedance value of the LI0201B121R-10 at the standard test frequency?

The impedance is 120 Ohms at 100 MHz.

What is the maximum DC current rating for this ferrite bead?

The maximum DC current rating is 200 mA.