0000820313 us-gaap:CommonClassAMember 2026-10-28 2026-10-28 0000820313 aph:UnsecuredSeniorNotes3Point125PercentDueJune2032Member 2026-10-28 2026-10-28 0000820313 aph:Senior3.875NotesDueMay2034Member 2026-10-28 2026-10-28 0000820313 aph:Senior3.375NotesDueMay2029Member 2026-10-28 2026-10-28 0000820313 2026-10-28 2026-10-28 0000820313 false 8-K 2026-10-28 AMPHENOL CORPORATION DE 1-10879 22-2785165 358 Hall Avenue Wallingford CT 06492 203 265-8900 false false false false Class A Common Stock, $0.001 par value APH NYSE 3.375% Senior Notes due 2029 APH29B NYSE 3.125% Senior Notes due 2032 APH32 NYSE 3.875% Senior Notes due 2034 APH34A NYSE false