1.FR4 parts has Good dielectric properties.
2.FR4 parts has Good mechanical properties.
3.FR4 parts has Flame retardant.
FR4 parts has high mechanical properties and dielectric properties,used the insulation parts for electrical and mechanical equipment.
FR-4 parts used transformers, electric motors, cabinets, control boxes, electric switches, household appliances, railway, automobile, computer and medical appliance,etc.
Item | Unit | Value |
Flexural strength perpendicular to lamination ≥ | MPa | 390 |
Impact strength parallel to lamination (charpy) ≥ | kJ/m2 | 37 |
Voltage endurance perpendicular to lamination in transformer oil 1 min at 90±2°C ≥ Thickness:0.5mm Thickness:1.0mm Thickness:2.0mm | kV/mm |
16.1 14.2 12.1 |
Voltage endurance parallel to lamination in transformer oil 1 min at 90±2°C ≥ | kV | 35 |
Insulation resistance after impregnated in water ≥ | MΩ | 5×104 |
1MHz loss factor after impregnated in water ≤ | —— | 0.04 |
1MHz relative dielectric constant after impregnated in water ≤ | —— | 5.5 |
Water absorption ≤ Thickness:3.0mm Thickness:5.0mm |
mg |
22 25 |
Flammability | —— | UL-94V0 |