product description
Description of FR5
FR5 high TG TD epoxy laminate is a plate-shaped laminate that made of special electronic cloth impregnated with epoxy phenolic resin and other materials under high temperature and pressure. It has high mechanical and dielectric properties, good insulation properties, heat resistance, moisture resistance and good machinability. It is widely used as insulation structural parts and PCB testing in motors and electrical equipment. It also use in humid ambient conditions and transformer oil.
Parameter of FR5
| Test item | Environment | Unit | Specification | Value |
| Thermal stress | 288°C,10S/dip soldering | ____ | >10 | 60S/ no layer |
| Dielectric constant (1MHZ) | 1MHz C-24/23/50 | ____ | ≤5.4 | 4.1 |
| inflammability | E24/125 | ____ | UL94 V-0 | V-0 |
| Dielectric breakdown | D-48/50+D-0.5/23 | KV | ≥40 | 75 |
| Water absorption | D-24/23 | % | ≤0.8 | 0.21 |
| Surface resistivity | After absorbing water | MΩ | ≥1. 0×104 | 2.3×106 |
| Volume resisvity | After absorbing water | MΩ.cm | ≥1.0×106 | 2.0×108 |
| Arc elasticity | D-48/50+D-0.5/23 | S | ≥60 | 135 |
| Vertical bending strength | MPa | ≥340 | 678 | |
| CTI | IEC60112 | V | 175~250 | 300 |
| TG | ℃ | ≥125 | 126 |