MFBA3V2012K-400-R

Overview

The MFBA3V2012K-400-R is a surface-mount ferrite bead from the Eaton Electronics MFB series, designed for high-frequency noise suppression in compact electronic circuits. It features a single-line configuration housed in an 0805 (2012 metric) package. The component provides an impedance of 40 Ohms at 100 MHz and supports a maximum current rating of 600 mA with a maximum DC resistance of 100 mOhms. It is qualified to AEC-Q200 standards, ensuring reliability for automotive applications.

Feature Summary

• Provides effective electromagnetic interference filtering through high impedance characteristics at target frequencies
• Compact surface-mount design suitable for space-constrained printed circuit board layouts
• Automotive-grade qualification ensures durability and performance under rigorous environmental conditions

Applications

• Automotive electronics signal line protection
• High-speed data interface noise suppression
• Power supply output filtering for sensitive loads

Procurement Notes

Verify the complete part number including suffixes to ensure correct impedance and packaging specifications. Confirm that the supplier source is authorized to guarantee component authenticity and traceability. Check for RoHS compliance documentation if required by specific regulatory frameworks. Ensure storage conditions align with manufacturer guidelines to maintain material integrity prior to assembly.

Selection Notes

Select this component when a low-profile solution is required for noise attenuation in automotive or industrial environments. Evaluate the impedance curve against the specific noise frequency spectrum to ensure adequate attenuation. Consider the current rating relative to the operating load to prevent saturation or excessive heating. Verify compatibility with automated pick-and-place equipment due to the small form factor.

Part Context

This ferrite bead belongs to the MFB family of passive components manufactured by Eaton Electronics. These components are engineered to suppress unwanted high-frequency signals while maintaining signal integrity. The product line emphasizes miniaturization and robustness, catering to modern electronics that demand efficient EMI management within limited physical spaces.

Replacement Considerations

Direct substitutes must match the 0805 footprint, 40 Ohm impedance at 100 MHz, and 600 mA current rating. Verify that any alternative component also holds AEC-Q200 certification if used in automotive contexts. Ensure the replacement maintains similar DC resistance values to avoid impacting circuit power efficiency.