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Associate III
August 30, 2025
Solved

Replacement for EMIF02-USB03F2 (Obsolete) in MB997E Reference Design

  • August 30, 2025
  • 2 replies
  • 694 views

Hello,

I have developed a custom board based on the MB997E reference design, which uses the EMIF02-USB03F2 for USB EMI filtering and ESD protection. Since this component has been declared obsolete, I would like to know:

  1. What is the recommended replacement part from STMicroelectronics for EMIF02-USB03F2?
  2. If no direct replacement exists, what are the suggested alternative solutions (e.g., other ST EMI/ESD filter ICs, or combination of discrete ESD diodes and common-mode chokes) that can be used in new designs?
  3. Are there any application notes or migration guidelines provided for updating designs that currently rely on EMIF02-USB03F2?

This information would help me update my design to ensure long-term availability and compliance.

Best answer by Peter BENSCH

Essentially, you are asking the same question that has already been asked and answered here. To my knowledge, there is no migration guideline, as EMIF02-USB03F2 was developed for the now deprecated USB 2.0 and there is no recommended replacement.

Regards
/Peter

2 replies

Associate III
September 1, 2025

hello,
Any updates?

 

Peter BENSCH
Peter BENSCHBest answer
Technical Moderator
September 2, 2025

Essentially, you are asking the same question that has already been asked and answered here. To my knowledge, there is no migration guideline, as EMIF02-USB03F2 was developed for the now deprecated USB 2.0 and there is no recommended replacement.

Regards
/Peter