Verified Company
Ningbo Leadwin International Trade Co., Ltd.
Click to enlarge
1.Description: We are Fr4 laminate suppliers,fr4 laminate sheet owns the character of high temperature resistance,high mechanical properties and dielectric properties,good heat resistance.
It is created from electrical glass cloth that impregnated with epoxy resin under high pressure and high heat.
2.Specifications:
1).Thickness:0.1mm-150mm
2).Size: 1020x1220mm, 1220x2440mm,1020x2040mm ;
3). Payment terms: T/T or L/C in sight
4). Delivery port: Ningbo or shanghai.
5). Pacage: wooden pallet or according to customer requirements.
6).Delivery time:10-15 days.
7).Temperature grade:B glass(130°C).
3. .standard color: yellow, green ,black,red, white.We can also offer other colors according to the requirements of customers .
4. Applications: fr4 laminate sheet is widely used for electrical insulation as the components in the structure of electrical equipment,including the design of the switch computer printer circuit board drilling pad with governance,such as die(PCB test shelf),can be used in humid conditions and transformer oil situation.
| No. | Projects | Unit | FR4 Result | G10 Result | |
| 1 | Flexural strength perpendicular to lamination | A | Mpa | 494 | 494 |
| B | 473 | 473 | |||
| 2 | Impact strength parallel to laminations (Charpy) | A | KJ/m2 | 66.7 | 66.7 |
| B | 45.3 | 45.3 | |||
| 3 | laminations (Charpy) Dielectric strength perpendicular to laminations (in 90±2°C transformer oil,1mm in thickness) | MV/m | 10.7 | 10.7 | |
| 4 | Breakdown voltage parallel to laminations (in 90±2°C transformer oil) | KV | 54.6 | 54.6 | |
| 5 | Insulation resistance after impregnated in water | A | Ω | 1.5*1013 | 1.5*1013 |
| B | 1.7*1013 | 1.7*1013 | |||
| 6 | Dissipation factor | / | 3.3*10-2 | 3.3*10-2 | |
| 7 | Dielectric constant (1MHz) | / | 5.14 | 5.14 | |
| 8 | Water absorption | mg | 6.5 | 6.5 | |
| 9 | Combustibility | class | V-0 | HB | |
| 10 | Adhesive strength | N | 5221 | 5221 | |