FBU321611T-121Y-S

Chip Ferrite Bead Overview

The FBU321611T-121Y-S is a multilayer ferrite chip EMI suppressor manufactured by Cal-Chip Electronics, Inc. It features a 1206 (3216 metric) surface-mount package with dimensions of 3.20mm x 1.60mm and a maximum height of 0.8mm. The component provides an impedance of 120 Ohms at 100 MHz and supports a rated current of 4A. Its DC resistance is specified as 20 milliohms. Designed for high electrode strength and solder heat resistance, it operates within a temperature range of -55°C to +125°C.

Chip Ferrite Bead Feature Summary

• Multilayer ferrite technology providing high impedance for EMI/RFI attenuation without requiring wiring
• Designed for surface mounting applications including flow, reflow, and wave soldering processes
• Offers high electrode strength and outstanding solderability for reliable PCB integration

Chip Ferrite Bead Applications

• EMI suppression in automotive electronic devices
• Power line filtering for regulated power supplies
• General-purpose noise reduction in surface-mounted electronic equipment

Chip Ferrite Bead Procurement Notes

Verify the specific suffix variant when ordering, as Cal-Chip offers related parts like the -H version which may differ in current rating or impedance characteristics. Confirm the manufacturer source is Cal-Chip Electronics, Inc., not a generic distributor, to ensure authenticity. Check RoHS compliance status if required for your assembly process. Ensure the 1206 footprint matches your PCB design constraints before procurement.

Chip Ferrite Bead Selection Notes

Select this component when a 1206 footprint is required for EMI filtering with a 120 Ohm impedance target at 100 MHz. It is suitable for circuits handling up to 4A continuous current. Consider the low DC resistance of 20 milliohms for minimal voltage drop in power lines. Verify that the operating temperature range of -55°C to +125°C meets your environmental requirements.

Chip Ferrite Bead Part Context

This part belongs to the FB Ultra Hi series from Cal-Chip Electronics, designed specifically for surface mount applications. It utilizes multilayered ferrite material to achieve effective noise suppression in compact spaces. The series is engineered to replace conventional wire-wound beads, simplifying the manufacturing process by allowing direct PCB mounting.

Chip Ferrite Bead Replacement Considerations

The FBU321611T-121Y-S-H is a documented alternative from the same manufacturer. Verify if the -H variant's specifications align with your design needs before substitution.