F4T-1/2: A High-Performance Circuit Baseplate for Microwave PCBs
F4T-1/2 is a specialized circuit baseplate constructed from insulative Teflon PCB, featuring electrolytic copper foil on both sides. The material undergoes high-temperature and high-pressure treatment to ensure optimal performance. This product boasts superior electrical properties, such as low dielectric constant and minimal loss, coupled with excellent mechanical strength, making it an ideal choice for Microwave PCB applications.
Technische Spezifikationen
Aussehen
- Adheres to the general requirements for microwave PCB baseplates.
Dimensions (mm)
- Standard sizes include 150150, 220160, 250250, Und 200300.
- Benutzerdefinierte Dimensionen sind auf Anfrage erhältlich.
Dicke und Toleranz
- Available thicknesses: 0.5± 0,05, 1±0.1, 1.5±0.15, 2± 0,2, 3±0.3 mm.
- Plate thickness includes copper layer; custom laminations are possible for special requirements.
Mechanische Eigenschaften
- Angularity: 0.02mm/mm for double-layer boards.
- Cutting/Punching Property: No burrs post-cutting; minimum hole spacing of 0.55mm.
- Schalenstärke: ≥18N/cm normally; ≥6 N/cm under constant humidity and temperature conditions.
Chemische Eigenschaften
- Suitable for standard PCB chemical etching processes without altering material dielectric properties.
Elektrische Eigenschaften
| Name | Test Conditions | Einheit | Specification |
|---|---|---|---|
| Gravity | Normaler Zustand | g/cm³ | 2.2–2.3 |
| Water absorption rate | Dip in distilled water at 20±2°C for 24h | % | ≤0.01 |
| Operating temperature | High-low temp chamber | °C | -100～+150 |
| Thermal conductivity coefficient | Kcal/m.h.°C | 0.4 | |
| Coefficient of thermal expansion | Temp rise 96°C/hr | *1 | 9.8–10*10^-5 |
| Shrinkage factor | 2 hours boiling water | % | 0.0005 |
| Surface insulation resistance | 500In DC, normal state | Mω | ≥1*10⁷ |
| Konstante Luftfeuchtigkeit und Temperatur | Mω | ≥1*10⁵ | |
| Volume resistance | Normaler Zustand | Mω.cm | ≥1*10¹⁰ |
| Konstante Luftfeuchtigkeit und Temperatur | Mω.cm | ≥1*10⁷ | |
| Pin resistance | 500In DC, normal state | Mω | ≥1*10⁵ |
| Konstante Luftfeuchtigkeit und Temperatur | Mω | ≥1*10⁵ | |
| Surface dielectric strength | Normaler Zustand | δ=1mm(kV/mm) | ≥1.5 |
| Konstante Luftfeuchtigkeit und Temperatur | δ=1mm(kV/mm) | ≥1.4 | |
| Permittivity | 10GHz | εr | 2.2(± 2%) |
| Dielectric loss angle tangent | 10GHz | Tgside | ≤1*10^-3 |
This comprehensive overview highlights F4T-1/2’s technical prowess, ensuring it meets stringent industry standards for microwave PCB baseplates.