Current stage: 40.99 Full report circulated: DIS approved for registration as FDIS Aug 14, 2026
Next stage: DECFDIS Next stage date : Aug 28, 2026
Originator: IEC
Owner: TC 47
Type: International Standard
ICS: 31.080.99 Other semiconductor devices
IN_DEVELOPMENT IEC 63550-4 ED1 40.99 Full report circulated: DIS approved for registration as FDIS Aug 14, 2026