ILHB1812ER121V

Chip Ferrite Bead Overview

The ILHB1812ER121V is a high-current multilayer ferrite bead manufactured by Vishay Dale. It features a 1812 (4532 metric) surface-mount package with dimensions of 4.50 mm length, 3.20 mm width, and 1.75 mm maximum height. The component provides an impedance of 120 Ohms at a test frequency of 100 MHz with a tolerance of 25%. It supports a maximum DC current rating of 6 A and has a maximum DC resistance of 20 mOhms. The device operates within a temperature range of -55°C to +125°C.

Chip Ferrite Bead Feature Summary

• Magnetically self-shielded design to minimize electromagnetic interference coupling
• High current handling capability suitable for power line filtering applications
• Surface mount construction for automated assembly processes

Chip Ferrite Bead Applications

• Power supply output filtering
• DC-DC converter noise suppression
• High-current signal line protection

Chip Ferrite Bead Procurement Notes

Verify the specific suffix and RoHS compliance status against the manufacturer's latest datasheet before procurement. Confirm that the 1812 package dimensions align with the target PCB footprint. Ensure the 6 A current rating meets the operational requirements of the circuit to prevent saturation or excessive heating during use.

Chip Ferrite Bead Selection Notes

Select this component when high current capacity is required alongside effective high-frequency noise attenuation. The self-shielded characteristic makes it suitable for dense layouts where magnetic coupling between adjacent components must be minimized. Compare the 120 Ohm impedance value against the target noise spectrum to ensure adequate attenuation performance.

Chip Ferrite Bead Part Context

This part belongs to the ILHB series of high-current multilayer ferrite beads from Vishay Dale. The series offers various case sizes including 0603, 1206, and 1812, providing options for different current and impedance requirements in compact electronic designs.

Chip Ferrite Bead Replacement Considerations

Publicly confirmed substitute part numbers include 2518121217Y6 from Fair-Rite Products Corp. and BCMS453215A121 from Max Echo. Verify parameter equivalence for these alternatives.