MFBM1V2012-301-R

Overview

The MFBM1V2012-301-R is a multilayer chip ferrite bead manufactured by Eaton Electronics. It features a 1206 (2012 metric) surface-mount package with dimensions of 2.0 mm length, 1.2 mm width, and 1.25 mm height. The component provides an impedance of 300 Ohms at a test frequency of 100 MHz with a tolerance of ±25%. It supports a maximum DC current rating of 2.5 A and has a maximum DC resistance of 80 mOhms. The device operates within a temperature range of -40°C to +85°C.

Feature Summary

• Multilayer construction for high-frequency noise suppression
• Shielded design to minimize electromagnetic interference
• High saturation current capability for power line applications

Applications

• DC power supply filtering
• Signal line noise suppression in digital circuits
• EMI reduction in portable electronic devices

Procurement Notes

Verify the specific impedance value and current rating against the latest official Eaton datasheet before integration. Confirm that the 1206 package dimensions align with the target PCB footprint. Ensure the operating temperature range meets the environmental requirements of the final assembly. Cross-reference the manufacturer part number to avoid confusion with similar series variants.

Selection Notes

Select this component when a 300 Ohm impedance at 100 MHz is required for noise attenuation on lines carrying up to 2.5 Amperes. The 1206 case size offers a balance between current handling capacity and board space efficiency compared to smaller packages. Consider the low DC resistance to minimize voltage drop and power loss in the circuit path during normal operation.

Part Context

This part belongs to the MFBM1V series of shielded multilayer ferrite beads from Eaton Electronics. The series is designed for general-purpose EMI suppression in compact electronic designs. The MFBM1V2012 variant specifically utilizes the 1206 footprint, providing higher current ratings than smaller 0603 or 0402 equivalents while maintaining effective high-frequency performance.

Replacement Considerations

Direct substitutes include other Eaton MFBM1V2012 series parts with matching impedance, such as MFBM1V2012-101-R or MFBM1V2012-501-R, provided their electrical characteristics fit the circuit requirements. Verify pinout compatibility and thermal performance when swapping between different impedance values within the same package family.