MFBW1V2012-310-R

Overview

The MFBW1V2012-310-R is a multilayer chip ferrite bead from Eaton Electronics, housed in an 0805 (2012 metric) surface-mount package. It exhibits an impedance of 31 Ohms at a test frequency of 100 MHz and supports a maximum DC current rating of 3 Amperes. The component features a maximum DC resistance of 50 milliohms and operates within a temperature range of -40°C to +85°C.

Feature Summary

• Provides electromagnetic interference suppression through high-frequency impedance characteristics
• Utilizes multilayer ceramic construction for compact surface-mount integration
• Designed for high-current applications with low DC resistance to minimize power loss

Applications

• Power supply output filtering
• Data line signal integrity protection
• General-purpose EMI suppression in electronic circuits

Procurement Notes

Verify the specific impedance tolerance and current ratings against the official Eaton datasheet before procurement. Confirm that the operating temperature range meets the environmental requirements of the target application. Ensure compatibility with standard reflow soldering profiles for the 0805 package type to maintain component integrity during assembly.

Selection Notes

Select this component when a 31 Ohm impedance at 100 MHz is required for noise attenuation in space-constrained designs. The 3A current rating makes it suitable for power rails where significant DC bias is present. Consider the 0805 footprint availability and the low DC resistance value to ensure minimal voltage drop across the component in the circuit design.

Part Context

This part belongs to the MFBW1V series of multilayer chip ferrite beads manufactured by Eaton Electronics Division. The series offers various impedance values and current ratings in standardized SMD packages, providing engineers with options for tailored EMI filtering solutions across different electronic product categories.

Replacement Considerations

Cross-reference with other 0805 ferrite beads offering 31 Ohms @ 100 MHz and a minimum 3A current rating. Verify physical dimensions and terminal configurations to ensure mechanical compatibility. Check impedance curves under DC bias conditions to confirm equivalent performance in the specific circuit environment.