MFBW1V2012-122-R

Overview

The MFBW1V2012-122-R is a multilayer chip ferrite bead manufactured by Eaton Electronics. It features an 0805 (2012 metric) surface-mount package with dimensions of 2.0 mm length, 1.25 mm width, and 1.25 mm height. The component provides an impedance of 1200 Ohms at a test frequency of 100 MHz with a tolerance of ±25%. It supports a maximum DC current of 450 mA and has a maximum DC resistance of 50 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
• Compact 0805 footprint suitable for space-constrained PCB layouts

Applications

• High-speed data line filtering
• Power supply noise attenuation
• RF circuit signal integrity management

Procurement Notes

Verify the specific impedance value and current rating against the official Eaton datasheet before integration. Confirm that the 0805 package dimensions align with the target PCB land pattern. 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 components.

Selection Notes

Select this component when a 1200 Ohm impedance at 100 MHz is required for noise suppression in compact designs. The 450 mA current rating suits moderate power applications. Consider the 50 mOhms DC resistance for minimal voltage drop. The 0805 size offers a balance between performance and board space compared to smaller or larger packages.

Part Context

This part belongs to the MFBW1V series of multilayer chip beads from Eaton Electronics. The series utilizes proprietary materials to achieve stable impedance characteristics over temperature. The MFBW1V2012 variant specifically targets applications requiring robust EMI/RFI filtering in standard surface-mount configurations.

Replacement Considerations

Direct substitutes include other 0805 ferrite beads with 1200 Ohms impedance at 100 MHz and similar current ratings. Verify pin compatibility and thermal characteristics when replacing. Consult Eaton documentation for recommended alternative part numbers within the same family.