IEC 62148-21:2019 EN-FR fe896540
Fibre optic active components and devices – Package and interface standards – Part 21: Design guide of electrical interface of PIC packages using silicon fine-pitch ball grid array (S-FBGA) and silicon fine-pitch land grid array (S-FLGA)
REVISED
发布日期 :
2019-03-11
实施日期 :
IEC 62756-1:2015 EN 824fb21f
Digital load side transmission lighting control (DLT) - Part 1: Basic requirements
现行
发布日期 :
2015-05-27
实施日期 :
IEC 63522-21:2025 EN 707bc31b
Electrical relays - Tests and measurements - Part 21: Thermal endurance
现行
发布日期 :
2025-08-11
实施日期 :
ISO 11749:2023 EN 6d97d21c
Belt drives — V-ribbed belts for the automotive industry — Fatigue test
现行
发布日期 :
2023-11-02
实施日期 :
ISO 12240-4:1998 EN 6187e21e
Spherical plain bearings — Part 4: Spherical plain bearing rod ends
现行
发布日期 :
1998-08-20
实施日期 :