High-Performance 2-Layer RT/duroid 5880 PCBs with Immersion Gold Finish for Advanced Applications
1.Introduction to RT/duroid 5880
Rogers RT/duroid 5880 high-frequency laminates are PTFE composites reinforced with glass microfibers, specifically designed for precision stripline and microstrip circuit applications. The randomly oriented microfibers provide exceptional dielectric constant uniformity, ensuring consistent performance across panels and a wide frequency range. With a low dissipation factor, RT/duroid 5880 laminates are suitable for Ku-band applications and beyond.
These laminates can be easily cut, sheared, and machined to shape, offering resistance to solvents and reagents typically used in etching printed circuits or plating edges and holes.
2. Key Features of RT/duroid 5880:
Dielectric Constant: 2.2 with a tight tolerance of 0.02 at 10 GHz/23°C
Dissipation Factor: 0.0009 at 10 GHz
Temperature Coefficient of Dielectric Constant (TCDk): -125 ppm/°C
Low Moisture Absorption: 0.02%
Coefficient of Thermal Expansion (CTE):
X-axis: 31 ppm/°C
Y-axis: 48 ppm/°C
Z-axis: 237 ppm/°C
Isotropic Material Properties
3. PCB Construction Details:
| Specification | Details |
|---|---|
| Base Material | RT/duroid 5880 |
| Layer Count | 2 layers |
| Board Dimensions | 60mm x 55mm (± 0.15mm) |
| Minimum Trace/Space | 4/6 mils |
| Minimum Hole Size | 0.3mm |
| Blind Vias | None |
| Finished Board Thickness | 0.6mm |
| Finished Copper Weight | 1 oz (1.4 mils) for outer layers |
| Via Plating Thickness | 20 µm |
| Surface Finish | Electroless Nickel Immersion Gold |
| Top Silkscreen | White |
| Bottom Silkscreen | No |
| Top Solder Mask | Green |
| Bottom Solder Mask | No |
| Electrical Testing | 100% Electrical Testing conducted prior to shipment |
4. PCB Stackup
| Layer | Material | Thickness |
|---|---|---|
| Copper Layer 1 | Copper | 35 µm |
| Core | RT/duroid 5880 | 0.508 mm (20 mil) |
| Copper Layer 2 | Copper | 35 µm |
5.PCB Statistics
Components: 18
Total Pads: 39
Through Hole Pads: 23
Top SMT Pads: 16
Bottom SMT Pads: 0
Vias: 33
Nets: 2
6.Manufacturing & Compliance
Artwork Format: Gerber RS-274-X
Quality Standard: IPC-Class-2 compliant
Availability: Worldwide production and shipping
7.Benefits
Uniform electrical properties across a wide frequency range
Easy to cut, shear, and machine to shape
Resistant to solvents and reagents used in etching or plating
Ideal for high-moisture environments
Well-established and reliable material
Lowest electrical loss for reinforced PTFE materials
8.Typical Applications
Commercial Airline Broadband Antennas
Microstrip and Stripline Circuits
Millimeter Wave Applications
Radar Systems
Guidance Systems
Point-to-Point Digital Radio Antennas