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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.
Technical Specifications
Appearance
- Adheres to the general requirements for microwave PCB baseplates.
Dimensiuni (mm)
- Standard sizes include 150150, 220160, 250250, şi 200300.
- Custom dimensions are available upon request.
Thickness and Tolerance
- 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.
Proprietăți mecanice
- Angularity: 0.02mm/mm for double-layer boards.
- Cutting/Punching Property: No burrs post-cutting; minimum hole spacing of 0.55mm.
- Coajă de rezistență: ≥18N/cm normally; ≥6 N/cm under constant humidity and temperature conditions.
Proprietăți chimice
- Suitable for standard PCB chemical etching processes without altering material dielectric properties.
Proprietăți electrice
| Nume | Test Conditions | Unitate | Specification |
|---|---|---|---|
| Gravity | Normal state | g/cm³ | 2.2–2.3 |
| Water absorption rate | Dip in distilled water at 20±2°C for 24h | % | ≤0.01 |
| Temperatura de funcționare | 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 |
| Rezistență la izolație de suprafață | 500În DC, normal state | MΩ | ≥1*10⁷ |
| Constant humidity and temperature | MΩ | ≥1*10⁵ | |
| Rezistență la volum | Normal state | MΩ.cm | ≥1*10¹⁰ |
| Constant humidity and temperature | MΩ.cm | ≥1*10⁷ | |
| Pin resistance | 500În DC, normal state | MΩ | ≥1*10⁵ |
| Constant humidity and temperature | MΩ | ≥1*10⁵ | |
| Surface dielectric strength | Normal state | δ=1mm(kV/mm) | ≥1.5 |
| Constant humidity and temperature | δ=1mm(kV/mm) | ≥1.4 | |
| Permittivity | 10GHz | εr | 2.2(±2%) |
| Dielectric loss angle tangent | 10GHz | tgδ | ≤1*10^-3 |
This comprehensive overview highlights F4T-1/2’s technical prowess, ensuring it meets stringent industry standards for microwave PCB baseplates.
