MMZ1005D121ET000

Overview

The MMZ1005D121ET000 is a single-line ferrite bead from the TDK MMZ-E series, designed for surface-mount applications in the 0402 (1005 metric) package. It provides an impedance of 120 Ohms at 100 MHz with a maximum DC resistance of 700 milliohms and a rated current of 300 mA. The component operates within a temperature range of -55°C to +125°C and measures 1.00mm x 0.50mm x 0.55mm.

Feature Summary

• Multi-layer chip construction for high-frequency noise suppression
• Compact 0402 footprint suitable for space-constrained designs
• Signal line filtering capability

Applications

• High-speed data line protection
• Power supply noise filtering
• General-purpose EMI suppression in portable electronics

Procurement Notes

Verify the specific suffix ET000 against the manufacturer's official datasheet to confirm packaging type and tape specifications. Ensure the selected variant matches the required impedance tolerance and current rating for the target circuit environment before finalizing procurement orders.

Selection Notes

Select this component when a low-profile 0402 ferrite bead is required for signal integrity management. Consider the 300mA current rating and 700mOhm DCR limits to ensure adequate performance without excessive voltage drop or thermal issues in the application circuit.

Part Context

This part belongs to the MMZ-E series, which offers various impedance values in standard metric packages. The MMZ1005D121ET000 specifically targets general electronic equipment requiring compact EMI suppression solutions with reliable performance across industrial temperature ranges.

Replacement Considerations

Consult TDK documentation for direct cross-references. Alternative parts must match the 0402 size, 120 Ohm @ 100 MHz impedance, and 300mA current rating to maintain circuit compatibility.