| Customization: | Available |
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| Application: | Building Material, Electrical Power System, Electronic Communication, Electronic Device, Industrial Equipment, Laboratory Equipment, Medical Equipment, Transportation |
| Color: | Water Green |
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FR4 is a fire rated electrical-grade, dielectric fiberglass laminate epoxy resin system combined with a glass fabric substrate.
The abbreviation "FR4" means: F (for flame) and R (for retardant). It is a kind of insulation material made of epoxy resin and glass cloth. It is an ideal base material for printed circuit boards (PCBs). It has good electrical insulation, heat dissipation, mechanical strength and chemical corrosion resistance, and is widely used in the manufacture of printed circuit boards.
Features:
1. FR4 epoxy sheet has good electrical insulation, heat dissipation and mechanical strength.
2. It has strong chemical corrosion resistance and is not affected by the environment.
3. It has excellent machinability and can be drilled, milled, cut, sawed and machined into various shapes and sizes.
4. It has a high temperature resistance and can be used up to 120.
5. It is environmentally friendly and non-toxic, and has no harm to humans and the environment.
6. It has good dimensional stability and is not affected by temperature and humidity.
Application:
FR4 epoxy sheet is widely used in the manufacture of printed circuit boards. It is also used in the insulation and protection of electronic components, the insulation of transformers and motors, the insulation of electrical and electronic components, and the insulation of high-frequency devices.
Fr4 Laminate Sheet comparison:
FR4 laminate sheets can vary in their properties depending on their specific composition and manufacturing process. Here are some factors that can be compared when evaluating FR4 laminate sheets:
1. Dielectric constant (Dk): This measures how well the material can store electrical energy. Lower Dk values indicate better electrical insulation properties.
2. Tensile strength: This measures the maximum stress the material can withstand before breaking. Higher tensile strength values indicate greater mechanical strength.
3. Flexural strength: This measures the maximum stress the material can withstand before bending or breaking. Higher flexural strength values indicate greater resistance to bending.
4. Thermal conductivity: This measures how well the material conducts heat. Lower thermal conductivity values indicate better temperature resistance.
5. Coefficient of thermal expansion (CTE): This measures how much the material expands or contracts as the temperature changes. Lower CTE values indicate better dimensional stability.
6. Water absorption: This measures how much water the material can absorb over time. Lower water absorption values indicate better resistance to moisture.
When comparing FR4 laminate sheets, it's important to consider the specific application requirements and the performance characteristics of each material to ensure that the right material is selected.
Data Sheet:
| No. | Property | Unit | Requirment | Test Result | Test Method | |
| 1 | Flexural strength | A Direction | MPa | ≥340 | 593 | IEC 60893-2:2003 |
| B Direction | ≥340 | 506 | ||||
| 2 | Modulus of elasticity in flexure | A Direction | MPa | - | 2.43 X 104 | |
| B Direction | - | 2.24 X 104 | ||||
| 3 | Compressive strength | MPa | - | 598 | ||
| 4 | Charpy impact strength(notched) | A Direction | kJ/m2 | ≥33 | 75.7 | |
| B Direction | ≥33 | 56.2 | ||||
| 5 | Shear strength parallel to laminations | A Direction | MPa | - | 64.7 | |
| B Direction | - | 67.8 | ||||
| 6 | Tensile strength | A Direction | MPa | - | 443 | |
| B Direction | - | 345 | ||||
| 7 | Dielectrical strength at 90ºC±2ºC in oil perpendicular to laminations (20s step-by-step test) | kV/mm | ≥11.8 | 15.4 | ||
| 8 | Breakdown voltage at 90ºC±2ºC in oil perpendicular to laminations (20s step-by-step test) | kV | ≥35 | 100 | ||
| 9 | Relative permitivity(50Hz) | - | - | 4.77 | ||
| 10 | Insulation resistance after immersion in water | A Direction | Ω | ≥5.0 X 1010 | 1.9 X 1014 | |
| B Direction | ≥5.0 X 1010 | 8.2 X 1013 | ||||
| 11 | Deflection temperature under flexual load(Tff 1.8) | ºC | - | >240 | ||
| 12 | Water absorption | mg | ≤25 | 8.8 | ||
| 13 | Bonding strength | N | - | 8741 | IEC 60893-3-4:2003 | |
| Note: 1.In test item 3,the thickness of sample is 9.46~9.47mm. 2.In test item 7,the dimension of sample is 1.95mm~1.96mm,using Φ25mm/Φ75mm Circle Column electrode system. 3.In test item 8,the dimension of sample is 100.00mmx4.80mmx25.00mm,using Φ130mm/Φ130mm flat electrode system. 4.In test item 12,the dimension of sample is 50.10mmx50.10mmx5.00mm. 5.The indicator requirements are based on the EPGC306 type in IEC 60893-3-2:2003. |
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