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This FAQ has been written for NEAL (North East Africa and Levant) region. If you are looking for information for another region, please select the correct country from the top-left dropdown in the page and 'Navigate to Browse FAQs' in the Support menu.

What are the requirements of SEMI F47 that products tolerate in case of voltage sags?

SEMI F47 requires that products tolerate the following voltage sags:

  • 50% remaining voltage, 50% missing voltage, for 200 milliseconds
  • 70% remaining voltage, 30% missing voltage, for 500 milliseconds
  • 80% remaining voltage, 20% missing voltage for one second.

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