MMZ2012R121AT000

Overview

The MMZ2012R121AT000 is a single-line ferrite bead manufactured by TDK Corporation in an 0805 (2012 metric) surface-mount package. It provides an impedance of 120 Ohms at 100 MHz with a maximum DC resistance of 120 mOhm and a current rating of 800 mA.

Feature Summary

• Multi-layer chip construction for compact signal line filtering
• High impedance characteristics effective at 100 MHz
• RoHS compliant and free of SVHC substances

Applications

• Signal line noise suppression
• Power supply filtering
• RF circuit interference reduction

Procurement Notes

Verify the complete part number including suffixes to ensure correct impedance and tolerance specifications. Confirm RoHS compliance status and packaging format requirements such as tape and reel quantities before ordering. Cross-reference manufacturer datasheets for detailed electrical characteristics and handling instructions.

Selection Notes

Select this component when space constraints require an 0805 footprint for EMI suppression. Ensure the operating current does not exceed 800 mA to prevent saturation. Verify that the 120 Ohm impedance at 100 MHz aligns with the target noise frequency spectrum for effective attenuation.

Part Context

This device belongs to TDK's MMZ series of multi-layer ferrite beads designed for high-density electronic assemblies. The series offers various impedance values and current ratings within standard package sizes to address diverse electromagnetic interference challenges in consumer and industrial electronics.

Replacement Considerations

Consult official substitution guides for equivalent ferrite beads with matching 0805 dimensions, 120 Ohm impedance, and 800 mA current ratings. Verify pin compatibility and thermal performance before implementing any alternative components.