How strong is FR4?
For custom pcb fabrication, we need to understand the material properties of various PCBs. At Quick-turn PCB fabrication, we have purposeful production management. In this way, production efficiency can be improved, custom circuit board cost manufacturing can be reduced, and product quality can be improved.
The performance characteristics of FR4 material are as follows:
Vertical layer bending strength A: Normal state: E-1/150, 150±5℃≥340Mpa
Parallel layer direction impact strength (simple beam method): ≥233KJ/m
Insulation resistance after immersion in water (D-24/23): ≥5.0×108Ω
Vertical layer direction electric strength (in 90±2℃ transformer oil, plate thickness 1mm): ≥14.2MV/m
Parallel layer direction breakdown voltage (in 90±2℃ transformer oil): ≥40KV
Relative permittivity (50Hz): ≤5.5
Relative permittivity (1MHz): ≤5.5
FR4 material is generally used to make Microwave radio frequency board and Microwave radio frequency board, etc. High frequency board.