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.
Especificaciones técnicas
Apariencia
- Adheres to the general requirements for microwave PCB baseplates.
Dimensiones (milímetros)
- Standard sizes include 150150, 220160, 250250, y 200300.
- Custom dimensions are available upon request.
Espesor y tolerancia
- 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.
Mechanical Properties
- Angularity: 0.02mm/mm for double-layer boards.
- Cutting/Punching Property: No burrs post-cutting; minimum hole spacing of 0.55mm.
- Fuerza de pelado: ≥18N/cm normally; ≥6 N/cm under constant humidity and temperature conditions.
Chemical Properties
- Suitable for standard PCB chemical etching processes without altering material dielectric properties.
Electrical Properties
| Nombre | Test Conditions | Unidad | Especificación |
|---|---|---|---|
| Gravity | estado normal | gramos/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 | 500V DC, normal state | MΩ | ≥1*10⁷ |
| Humedad y temperatura constantes. | MΩ | ≥1*10⁵ | |
| Volume resistance | estado normal | MΩ.cm | ≥1*10¹⁰ |
| Humedad y temperatura constantes. | MΩ.cm | ≥1*10⁷ | |
| Pin resistance | 500V DC, normal state | MΩ | ≥1*10⁵ |
| Humedad y temperatura constantes. | MΩ | ≥1*10⁵ | |
| Surface dielectric strength | estado normal | δ=1mm(kV/mm) | ≥1.5 |
| Humedad y temperatura constantes. | 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.