MCZ1210AD121T002

Common Mode Chokes Overview

The MCZ1210AD121T002 is a two-line common mode filter manufactured by TDK Corporation, designed for surface mount assembly in the 0504 (1210 metric) package. It exhibits an impedance of 120 Ohms at a test frequency of 100 MHz and supports a maximum DC current of 500 mA. The component features a maximum DC resistance of 200 mOhms with a 25% impedance tolerance. Operating temperatures range from -40°C to +85°C, and it complies with RoHS3 standards.

Common Mode Chokes Feature Summary

• Provides common mode noise suppression for dual signal lines
• Utilizes multilayer ceramic construction for compact SMD integration
• Engineered specifically for audio and USB interface protection

Common Mode Chokes Applications

• Audio circuit noise filtering
• USB port signal line protection
• Electromagnetic interference suppression in consumer electronics

Common Mode Chokes Procurement Notes

Verify component status as Not Recommended for New Designs (NRND). Confirm availability through authorized distributors due to potential end-of-life constraints. Ensure compatibility with existing PCB footprints and reflow soldering profiles specified in the official datasheet before procurement.

Common Mode Chokes Selection Notes

Select this component for applications requiring 120 Ohm impedance at 100 MHz on dual lines. Verify that the 500 mA current rating meets system requirements. Consider the 0504 package dimensions for board space constraints. Evaluate thermal performance within the -40°C to +85°C operating range.

Common Mode Chokes Part Context

This part belongs to the TDK MCZ series of chip beads and common mode filters. It is distinct from the MCZ-DH automotive series, which offers different channel configurations and impedance characteristics. The AD suffix indicates specific design parameters tailored for general signal line applications rather than high-reliability automotive environments.

Common Mode Chokes Replacement Considerations

Publicly confirmed substitutes include MMZ1005Y121CT000 by TDK and EXC-24CP121U by Panasonic Industry. Verify pinout compatibility and impedance curves when substituting.