MFBA3V2012K-102-R

Overview

The MFBA3V2012K-102-R is a surface-mount ferrite bead from Eaton Electronics, designed for high-frequency noise suppression in compact electronic circuits. This component features an impedance of 1000 Ohms at 100 MHz and supports a maximum current rating of 400 mA. It exhibits a low DC resistance of 450 milliohms to minimize power loss during operation. The device utilizes a standard 0805 (2012 Metric) package footprint, ensuring compatibility with automated pick-and-place assembly processes. It operates reliably within a temperature range of -40°C to +125°C, making it suitable for demanding industrial and consumer applications.

Feature Summary

• Provides effective attenuation of high-frequency electromagnetic interference signals
• Utilizes a compact 0805 surface-mount package for space-constrained designs
• Maintains stable electrical performance across a wide operating temperature range

Applications

• High-speed data line filtering in portable devices
• Power supply output noise suppression
• Clock signal integrity protection in digital circuits

Procurement Notes

Verify the specific impedance tolerance and current derating curves against your circuit requirements before finalizing the design. Confirm that the 0805 footprint matches your PCB layout constraints. Ensure the supplier provides original manufacturer documentation to guarantee component authenticity and traceability. Check for any RoHS compliance certificates if required by your regional regulations.

Selection Notes

Select this component when a 1000 Ohm impedance at 100 MHz is required for noise suppression. The 400 mA current rating must exceed the maximum expected load current to prevent saturation. Consider the low DC resistance value to ensure minimal voltage drop in sensitive power rails. The 0805 size offers a balance between thermal performance and board space efficiency.

Part Context

This ferrite bead belongs to Eaton's MFBA series of chip beads, which are engineered for general-purpose EMI suppression. The series covers various impedance values and current ratings within standardized footprints. These components are widely used in consumer electronics and automotive systems where reliable noise filtering is critical for maintaining signal integrity and regulatory compliance.

Replacement Considerations

Direct substitutes include other 0805 ferrite beads with 1000 Ohms @ 100 MHz and similar current ratings. Verify physical dimensions and terminal configurations to ensure mechanical compatibility. Electrical parameters such as impedance frequency characteristics and DC resistance should be closely matched to maintain circuit performance.