RT/duroid 5880 2-Layer 0.45mm Immersion Gold PCB for High-Frequency Applications
1.Introduction
Rogers RT/duroid 5880 high frequency laminates are PTFE composites reinforced with glass microfibers, designed for exacting stripline and microstrip circuit applications. The randomly oriented microfibers result in exceptional dielectric constant uniformity. The dielectric constant of RT/duroid 5880 laminates is uniform from panel to panel and is constant over a wide frequency range. Its low dissipation factor extends the usefulness of RT/duroid 5880 laminates to Ku-band and above. These laminates are easily cut, sheared and machined to shape. They are resistant to all solvents and reagents, hot or cold, normally used in etching printed circuits or in plating edges and holes.
2.Key Features
Dielectric constant of 2.2 +/- 0.02 at 10 GHz/23°C
Dissipation factor of 0.0009 at 10GHz
Temperature coefficient of dielectric constant (TCDk) of -125 ppm/°C
Low Moisture Absorption 0.02%
CTE in X-axis of 31 ppm/°C, Y-axis of 48 ppm/°C and Z-axis of 237 ppm/°C
Td 500°C TGA
UL 94-V0
Lead free Process compatible
Isotropic
3.Benefits
Uniform electrical properties over wide frequency range
Easily cut, sheared and machined to shape
Resistant to solvents and reagents used in etching or plating edges and holes
Ideal for high moisture environments
Well-established material
Lowest electrical loss for reinforced PTFE material
4.PCB Construction Details
| Parameter | Specification |
|---|---|
| Base Material | RT/duroid 5880 |
| Layer Count | 2 layers |
| Board Dimensions | 135mm x 105mm (±0.15mm) |
| Minimum Trace/Space | 3.9/3.9 mils |
| Minimum Hole Size | 0.3mm |
| Blind Vias | No |
| Finished Thickness | 0.45mm |
| Finished Cu Weight | 1oz (1.4 mils) |
| Via Plating Thickness | 20 μm |
| Surface Finish | Immersion Gold |
| Top Silkscreen | White |
| Bottom Silkscreen | No |
| Top Solder Mask | Green |
| Bottom Solder Mask | No |
| Electrical Test | 100% tested prior to shipment |
5.PCB Stackup (2-Layer Rigid Structure)
Copper_layer_1 - 35 μm
RT/duroid 5880 - 0.381 mm (15mil)
Copper_layer_2 - 35 μm
6.PCB Statistics:
Components: 38
Total Pads: 147
Thru Hole Pads: 121
Top SMT Pads: 26
Bottom SMT Pads: 0
Vias: 55
Nets: 2
7.Typical Applications
Commercial Airline Broadband Antennas
Microstrip and Stripline Circuits
Millimeter Wave Applications
Radar Systems
Guidance Systems
Point to Point Digital Radio Antennas
8.Quality Assurance
IPC-Class 2 compliant
100% electrical tested
Global availability
Gerber RS-274X support