HI0805O121R-00

Chip Ferrite Bead Overview

The HI0805O121R-00 is a single-line ferrite bead chip from the HI series by Laird-Signal Integrity Products. It provides 120 Ohms impedance at 100 MHz with a maximum DC resistance of 20 milliohms and a rated current of 3.5 Amperes. The component utilizes a 0805 (2012 Metric) surface-mount package measuring 2.00mm x 1.25mm x 1.10mm. Designed for power and signal line filtering, it operates within a temperature range of -40°C to 125°C. This specific part number is obsolete and no longer manufactured.

Chip Ferrite Bead Feature Summary

• High-current handling capability suitable for power supply lines
• Compact 0805 surface-mount footprint for dense PCB layouts
• Low DC resistance to minimize insertion loss in high-current paths

Chip Ferrite Bead Applications

• Power line EMI suppression
• Signal line noise filtering

Chip Ferrite Bead Procurement Notes

This component is officially obsolete and no longer manufactured by Laird-Signal Integrity Products. Procurement must focus on verified direct substitutes or alternative manufacturers offering equivalent electrical specifications. Verify RoHS compliance status as the original part may not meet current environmental standards. Confirm availability through authorized distributors only.

Chip Ferrite Bead Selection Notes

Select replacement components based on matching impedance characteristics at 100 MHz and ensuring the substitute supports at least 3.5A continuous current. Verify that the physical dimensions fit the existing 0805 land pattern. Check for low DC resistance requirements to maintain circuit efficiency. Ensure the new component meets the required operating temperature range of -40°C to 125°C.

Chip Ferrite Bead Part Context

The HI series represents Laird's high-current ferrite bead lineup designed for robust EMI filtering applications. These components are engineered to handle significant DC bias currents while maintaining effective noise attenuation. The HI0805O121R-00 specifically targets applications requiring compact solutions for high-current power rails where space constraints limit the use of larger ferrite cores.

Chip Ferrite Bead Replacement Considerations

Direct substitute: HI0805O121R-10.