FR4FR is for “Flame Retardant”. As a printed circuit board is made to work with electricity, it is supposed to resist heat. FR4 has a much better heat resistance than FR1/XPC thanks to a different com
SY-FR4-4L-Medical Device Electronic Circuit Board, Medical Device PCB Board
FR4-2L-ENIG-Intercom telephone PCB
FR4-1.6MM-2L-Lithium battery protection board PCB
FR4-1.6MM-2L-Motor Controller PCB
5G通信, 5G module FR4, 6L, 2.0mm, Plating Gold, 0.1/0.1mm
FR4-4L-1.6MM-Traffic signal lamp circuit board, communication type pcb board
FR4-2L-Industrial computer circuit board, industrial control all-in-one computer PCB
FR4-1.2MM-ENIG-Laptop Screen PCB
FR4-2L-1.6MM-ENIG-Power board
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