ILBB1812ER121V

Chip Ferrite Bead Overview

The ILBB1812ER121V is a multilayer ferrite bead from the Vishay Dale ILBB series, designed for surface-mount applications in the 1812 (4532 metric) package. It provides an impedance of 120 Ohms with a 25% tolerance at a test frequency of 100 MHz. The component supports a maximum DC current of 400 mA and exhibits a maximum DC resistance of 1.00 ohm. It operates within a temperature range of -40°C to +125°C and features a nickel barrier coating to prevent silver migration.

Chip Ferrite Bead Feature Summary

• Multilayer construction for compact electromagnetic interference suppression
• Nickel barrier coating enhances reliability by eliminating silver migration
• Broad operating temperature range suitable for rugged environments

Chip Ferrite Bead Applications

• Telecommunications equipment signal line filtering
• Computer system power distribution noise reduction
• Automotive under-the-hood electronic circuit protection

Chip Ferrite Bead Procurement Notes

Verify the specific manufacturer part number against official Vishay documentation to ensure authenticity. Confirm that the ordering suffix matches the required impedance and tolerance specifications. Check for RoHS compliance status as indicated in the latest datasheet. Ensure the component meets the required moisture sensitivity level for your assembly process.

Chip Ferrite Bead Selection Notes

Select this component when space constraints require an 1812 footprint but higher current handling than smaller packages allows. Compare the 400 mA rating against circuit load requirements. Consider the 1.00 ohm DC resistance impact on voltage drop. Evaluate the 120 Ohm impedance at 100 MHz against the target noise frequency spectrum.

Chip Ferrite Bead Part Context

This component belongs to the Vishay Dale ILBB series of surface-mount multilayer ferrite beads. The series includes various package sizes such as 0402, 1210, and 1806. The ILBB1812 variant offers a balance between physical size and current carrying capacity compared to smaller form factors in the same family.

Chip Ferrite Bead Replacement Considerations

Consult official Vishay documentation for direct cross-references. Verify that any substitute part matches the 1812 package dimensions, 120 Ohm impedance at 100 MHz, and 400 mA current rating. Ensure thermal and electrical characteristics are equivalent for the specific application environment.