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08-04-2026
What Safety Margins Should Be Considered When Selecting An AC-DC Converter
When selecting an AC-DC converter, the most important safety margins are input-voltage margin, surge and inrush headroom, peak-load and overload margin, thermal derating margin, and insulation/compliance margin. The safest choice is rarely the one that only matches the nominal specification. It is the one that still has enough room left when real mains conditions, real enclosure temperature, real overload behavior, and real compliance requirements are taken into account.
