MMZ2012S121AT000

Overview

The MMZ2012S121AT000 is a surface-mount ferrite bead from the TDK MMZ series, designed for signal line noise suppression. It features a 0805 (2012 metric) package with dimensions of 2.00mm x 1.25mm and a maximum height of 1.05mm. The component provides an impedance of 120 Ohms at 100 MHz and supports a rated current of 800mA. Its maximum DC resistance is 150 milliohms. It operates within a temperature range of -55°C to 125°C and meets AEC-Q200 automotive standards.

Feature Summary

• Provides effective high-frequency noise attenuation for single signal lines
• Engineered for automotive reliability with AEC-Q200 qualification
• Compact surface-mount design suitable for space-constrained PCB layouts

Applications

• Automotive electronic circuit noise suppression
• High-speed digital signal line filtering
• EMI reduction in compact consumer electronics

Procurement Notes

Verify component status as this part may be obsolete or not recommended for new designs. Confirm availability of approved substitutes if production continuity is required. Ensure sourcing channels provide valid traceability documentation. Check RoHS compliance status against specific project requirements before finalizing procurement decisions.

Selection Notes

Select this component when a 120 Ohm impedance at 100 MHz is required for signal integrity. The 800mA current rating suits moderate power signal lines. The 0805 footprint offers a balance between thermal performance and board space. Verify that the low DC resistance meets voltage drop constraints in the target application circuit.

Part Context

This ferrite bead belongs to the MMZ series, which includes various impedance and current ratings in standard metric packages. The MMZ2012S121AT000 specifically targets the 0805 form factor. It is distinct from higher-current MPZ series components. The series is widely used in both industrial and automotive applications for EMI control.

Replacement Considerations

Public confirmed substitute: MMZ1608S121ATD25.