MMZ1608SHE121ATD25

Overview

The MMZ1608SHE121ATD25 is a single-line ferrite chip bead from the TDK MMZ-HE series, designed for automotive applications. It features a 0603 (1608 metric) surface-mount package with dimensions of 1.6 mm length, 0.8 mm width, and 0.8 mm height. The component provides an impedance of 120 Ohms at a test frequency of 100 MHz and supports a maximum DC current of 500 mA. It has a maximum DC resistance of 150 mOhms and operates within a temperature range of -55°C to +150°C. The part is AEC-Q200 qualified.

Feature Summary

• AEC-Q200 qualified for automotive reliability standards
• High-temperature operation up to +150°C
• Shielded design to minimize electromagnetic interference

Applications

• Automotive signal line noise suppression
• High-temperature electronic circuit filtering
• EMI suppression in compact automotive modules

Procurement Notes

Verify the specific suffix and manufacturer documentation to confirm the shielded construction and high-temperature rating, as standard MMZ variants may differ. Ensure the application environment does not exceed the specified 150°C maximum operating temperature or the 500 mA current limit. Cross-reference the datasheet for impedance characteristics at 100 MHz to validate performance requirements.

Selection Notes

Select this component when a shielded ferrite bead is required for automotive signal lines operating in high-temperature environments. The 0603 footprint suits space-constrained designs. Compare against non-shielded MMZ variants if EMI shielding is critical. Verify that the 120 Ohm impedance at 100 MHz aligns with the target noise frequency spectrum.

Part Context

This part belongs to the MMZ-HE series, which distinguishes itself from the standard MMZ Auto series by offering enhanced thermal stability and shielded construction. While similar in footprint to other MMZ1608 parts, the HE designation indicates specific material properties optimized for higher temperature resilience and electromagnetic shielding capabilities in automotive contexts.

Replacement Considerations

MMZ1608S121ATD25 offers identical electrical parameters but lacks the shielded feature and lower temperature rating. MMZ1608R121ATD25 is another alternative with similar specs but different internal construction. Verify compatibility regarding shielding requirements and thermal limits before substitution.