ILBB0402ER121V

Chip Ferrite Bead Overview

The ILBB0402ER121V is a multilayer ferrite bead from the Vishay Dale ILBB-0402 series, designed for surface-mount applications. It provides an impedance of 120 Ohms with a tolerance of ±25% at a test frequency of 100 MHz. The component supports a maximum DC current of 300 mA and exhibits a maximum DC resistance of 450 mOhms. It operates within a temperature range of -55°C to +125°C. The physical dimensions are 1 mm in length, 0.5 mm in width, and 0.5 mm in height, housed in a standard 0402 (1005 metric) package.

Chip Ferrite Bead Feature Summary

• Multilayer construction enables compact electromagnetic interference suppression in dense circuit layouts.
• Nickel barrier coating eliminates silver migration, enhancing reliability in rugged environments.
• Broad operating temperature range ensures stable performance across extreme thermal conditions.

Chip Ferrite Bead Applications

• Telecommunications equipment signal line filtering
• Computer system power distribution noise reduction
• Automotive electronics under-the-hood applications

Chip Ferrite Bead Procurement Notes

Verify the specific manufacturer datasheet for the ILBB0402ER121V to confirm RoHS compliance status and detailed packaging options such as cut tape or reel quantities. Ensure that the ordering suffix matches the required termination style and that the component meets the specific impedance tolerance requirements for the target design. Cross-reference official Vishay documentation for any recent updates regarding material composition or testing standards.

Chip Ferrite Bead Selection Notes

Select this component when space constraints require a 0402 footprint while maintaining a 120 Ohm impedance profile at 100 MHz. The 300 mA current rating suits low-to-moderate current signal lines. Consider the 450 mOhms DC resistance impact on voltage drop. Verify that the -55°C to +125°C range aligns with the environmental conditions of the final assembly application.

Chip Ferrite Bead Part Context

This part belongs to the Vishay Dale ILBB series of surface-mount multilayer ferrite beads. The series includes various package sizes including 0402, 0603, 0805, 1210, 1806, and 1812. These components are engineered to reduce electromagnetic interference in telecommunications, computer, and automotive sectors. The ILBB-0402 variant specifically addresses high-density board layout needs.

Chip Ferrite Bead Replacement Considerations

Publicly confirmed substitute part numbers for the ILBB0402ER121V are not available in the provided source data. Engineers should consult official Vishay documentation or distributor cross-reference tools for equivalent components with matching impedance, current rating, and package dimensions.