What does FR4 stand for?
FR4 stands for Flame Retardant 4 (printed circuit boards)
This definition appears rarely and is found in the following Acronym Finder categories:
- Science, medicine, engineering, etc.
- Feature Release 1
- Fixed Ration 1 Schedule
- Framework Region 1 (antibodies)
- Frost Resistance 1
- Fanaroff-Riley Type 2 (quasars)
- Forgotten Realm 2 (game)
- Framework Region 2 (antibodies)
- Free Rider 2 (game)
- Framework Region 3 (antibodies)
- France Régions 3 (TV channel)