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By certification 
FR-4 epoxy board
FOB price: US $6.3 (3mm-50mm) or negotiate
MOQ: 1000 kilogram
Port: Shanghai
Payment term: L/C, T/T
Packing: packed with pallet
Delivery detail: 1 month
Sample: available
Supply ability: 300 ton/month
1. Description of FR-4 epoxy board
Type |
Insulation sheet |
Material |
Brominated epoxy resin and E-glass cloth |
Color |
Yellow，Black or Natural |
Thickness |
0.1 mm-100 mm |
Density |
1.7-1.9 g/cm3 |
Tensile Strength |
340MPa |
Temperature |
140°C |
Size |
1020X1220mm, 1220mmX2440mm |
Environmental Standards |
ROHS |
2. Applications of FR-4 epoxy board
The planetary gear, FPC reinforcing sheet, High-voltage switch gear/ transformer, The field of electronic insulation
3. Properties of FR-4 epoxy board
Property |
Unit |
||
|
Flexural strength perpendicular to laminations |
≥ |
MPa |
340 |
Impact Strength parallel to laminations (Charpy) |
≥ |
kJ/m2 |
33 |
Insulation Resistance after immersion in water |
≥ |
W |
5.0×108 |
Dielectric strength perpendicular to laminations (in 90±2°C transformer oil,3 mm in thickness) |
≥ |
kV/mm |
14.2 |
|
Breakdown voltage parallel to laminations （in 90±2°C transformer oil) |
≥ |
kV |
35 |
Permittivity |
≤ |
— |
5.5 |
|
Dissipation factor |
≤ |
— |
0.04 |
|
Water absorption (1.66 mm in thickness) |
≤ |
mg |
19 |
|
Density |
g/cm3 |
(1.7-1.9) |
|
|
Flammability |
Class |
FV0 |
|
Color |
Yellow，Black or Natural，（3 mm above the light green, the thinner the color the more light） |
