MCI-2012-121

Common Mode Chokes Overview

The MCI-2012-121 is a surface-mount common mode choke manufactured by Pulse Electronics. It features a horizontal package with four PC pads and operates within a temperature range of -40°C to +85°C. The component has a maximum DC current rating of 370 mA and a maximum DC resistance of 300 mOhms. Its inductance value is 120 Ohms at the specified test frequency.

Common Mode Chokes Feature Summary

• Horizontal surface-mount construction for compact circuit board integration
• Dual-line configuration designed for noise suppression applications
• Shielded design to minimize electromagnetic interference

Common Mode Chokes Applications

• USB interface protection
• Data line filtering
• Signal integrity enhancement

Common Mode Chokes Procurement Notes

Verify the specific suffix (e.g., -RU) against official datasheets, as it may indicate regional or packaging variations without altering core electrical function. Confirm RoHS compliance status through manufacturer documentation before procurement. Ensure the supplier provides valid traceability records for quality assurance purposes.

Common Mode Chokes Selection Notes

Select this component when designing circuits requiring common mode noise reduction for high-speed data lines. Evaluate the 370 mA current rating against peak load requirements. Consider the 120 Ohm impedance characteristic for compatibility with target signal frequencies. Verify footprint dimensions match the PCB layout constraints.

Common Mode Chokes Part Context

This part belongs to the MCI series of common mode chokes from Pulse Electronics. It serves as an alternative to similar components like BWCU00201212121M02. The series focuses on providing EMI suppression for portable electronics and communication interfaces.

Common Mode Chokes Replacement Considerations

The part number alias BWCU00201212121M02 is documented as a substitute. Verify pinout compatibility and mechanical dimensions before swapping. Ensure electrical parameters such as inductance and current ratings meet original design specifications.