MFBA3V1005K-121-R

Chip Ferrite Bead Overview

The MFBA3V1005K-121-R is an automotive-grade multilayer chip ferrite bead manufactured by Eaton Electronics. It features a 0402 (1005 metric) surface-mount package with dimensions of 1.0 mm x 0.5 mm x 0.5 mm. The component provides an impedance of 120 Ohms at a test frequency of 100 MHz and supports a maximum DC current of 100 mA. It has a maximum DC resistance of 200 mOhms and operates within a temperature range of -55°C to +150°C.

Chip Ferrite Bead Feature Summary

• Automotive qualification compliant with AEC-Q200 standards for reliability in vehicle environments.
• Multilayer chip construction designed for effective electromagnetic interference suppression in compact circuits.
• High-temperature operational capability suitable for demanding thermal conditions.

Chip Ferrite Bead Applications

• Automotive electronic systems requiring EMI filtering
• Power line noise suppression in vehicles
• Compact circuit board designs utilizing 0402 footprints

Chip Ferrite Bead Procurement Notes

Verify the specific suffix K against official Eaton documentation to confirm automotive grade status and tolerance specifications. Ensure the selected packaging matches production requirements, as standard reels may differ from cut tape availability. Cross-reference the manufacturer part number with authorized distributors to confirm current supply chain status and authenticity before finalizing procurement orders.

Chip Ferrite Bead Selection Notes

Select this component when high-temperature stability and automotive reliability are required in a minimal footprint. The 120 Ohm impedance at 100 MHz targets specific noise frequencies while maintaining low DC resistance. Consider the 100 mA current rating to ensure the component does not saturate under expected load conditions during operation.

Chip Ferrite Bead Part Context

This ferrite bead belongs to the MFBA3 series, which is specifically engineered for automotive applications. The series utilizes multilayer technology to provide robust noise suppression in space-constrained environments. It complements other Eaton components like the MFBM1V series but distinguishes itself through extended temperature ranges and automotive certification.

Chip Ferrite Bead FAQ

What is the maximum operating temperature for this ferrite bead?

The MFBA3V1005K-121-R supports a maximum operating temperature of +150°C.

Is this component qualified for automotive use?

Yes, it is an automotive-grade multilayer chip ferrite bead compliant with AEC-Q200 standards.