Datasheet FR4
Descrizione delle caratteristiche e specifiche
Parte 1 : Datasheet FR4
Parte 2 : Costruzione dei multistrato
| FR4 DATASHEET | |
|---|---|
| Test/Specification | FR4 Laminate Typical Values |
| Thermal Stress, Solder bath 288 deg. C | >60 |
| Dimensional Stability, E-2/150 | <0.04% Warp/fill <1.00% Bow/Twist |
| Flammability, Classification UL94 | V0 |
| Water Absorption E-1/105 | 0.10% |
| Peel Strength After Thermal Stress | 11 lb./in After 10s/288 Deg. C |
| Flexural Strength | 100,000 lbf/inē Lengthwise 75,000 lbf/inē Crosswise |
| Resistivity After Damp Heat Volume | 10 ^8 M ohms cm |
| Resistivity After Damp Heat Surface | 10 ^8 M ohms |
| Dielectric Breakdown. Parallel to laminate | >60KV |
| Dielectric Constant @ 1MHz | 4.7 |
| Dissipation Factor @ 1MHz | 0.014 |
| Q-Resonance @ 1 MHz | >75 |
| Q-Resonance @ 50 MHz | >95 |
| Arc Resistance | 125 s |
| Glass Transition Temperature | 135 Deg. C |
| Temperature Index | 130 Deg. C |
| Specific Gravity | 1.8-1.9 |
| Rockwell Hardness (M scale) | 110 |
| Coefficient of Thermal Expansion | 11 microns/m/Deg.C Lengthwise 15 microns/m/Deg.C Crosswise |
| Thermal Conductivity | 2.2-2.5 cal/h. cm Deg C |
