MMZ1005B121CTD25

Overview

The TDK MMZ1005B121CTD25 is a surface-mount ferrite bead designed for signal line applications. It features an impedance of 120 Ohms at 100 MHz with a tolerance of 25%. The component supports a maximum DC current of 400 mA and has a maximum DC resistance of 250 milliohms. It operates within a temperature range of -55°C to +125°C. The device is housed in a 0402 (1005 metric) package, measuring 1.0 mm in length, 0.5 mm in width, and 0.5 mm in height.

Feature Summary

• Provides electromagnetic interference suppression for high-speed signal lines
• Complies with AEC-Q200 automotive electronic component qualification standards
• Utilizes a compact 0402 surface-mount footprint for space-constrained designs

Applications

• Automotive infotainment system signal filtering
• High-speed data interface noise suppression
• Consumer electronics signal integrity protection

Procurement Notes

Verify the specific suffix designation against official TDK documentation to confirm electrical tolerances and packaging specifications. Ensure that the selected variant meets the required AEC-Q200 qualification if used in automotive contexts. Cross-reference the impedance value at the target frequency to validate circuit performance requirements before finalizing procurement orders.

Selection Notes

Select this component based on its 120 Ohm impedance characteristic at 100 MHz for effective noise attenuation. Evaluate the 400 mA current rating to ensure it accommodates the peak signal currents without saturation. Consider the 0402 package dimensions for compatibility with existing PCB land patterns and assembly capabilities.

Part Context

This part belongs to the TDK MMZ series of ferrite beads, which are engineered for suppressing electromagnetic interference in electronic circuits. The series offers various impedance values and current ratings to suit different application needs. The MMZ1005B121CTD25 specifically targets signal line protection in compact form factors.

Replacement Considerations

The MMZ1005D121CTD25 is a documented equivalent substitute with similar impedance characteristics. Verify current handling capabilities, as some variants may have lower rated currents compared to the B-series designation.