Hello everyone,
Today, we introduce high frequency PCB built on RT/duroid 5880
laminates.
RT/duroid 5880 is one of Rogers’ glass microfiber reinforced PTFE
composite which is designed for exacting stripline and microstrip
circuit applications.
Why do we use RT/duroid 5880?
Firstly, the randomly oriented microfibers result in exceptional
dielectric constant uniformity.
Secondly, the dielectric constant of RT/duroid 5880 laminates is
uniform from panel to panel and is constant over a wide frequency
range.
Thirdly, its low dissipation factor extends the usefulness of
RT/duroid 5880 laminates to Ku-band and above. It’s as low as
0.0004 when 1 MHz and 0.0009 when 10 GHz.
Fourthly, designed for exacting stripline and microstrip circuit
applications
PCB Capability (RT/duroid 5880)
| PCB Material: | Glass microfiber reinforced PTFE composites |
| Designation: | RT/duroid 5880 |
| Dielectric constant: | 2.2 ±0.02 (process) |
| 2.2 (design) |
| Layer count: | 2 Layer, Multilayer, Hybrid type (Mixed) |
| Copper weight: | 0.5oz (17 µm), 1oz (35µm), 2oz (70µm) |
| PCB thickness: | 10mil (0.254mm), 20mil (0.508mm) |
| 31mil (0.787mm), 62mil (1.575mm) |
| PCB size: | ≤400mm X 500mm |
| Solder mask: | Green, Black, Blue, Yellow, Red etc. |
| Surface finish: | Bare copper, HASL, ENIG, OSP, etc.. |
RT/duroid 5880 material can be made in double layer board,
multilayer board and hybrid types. The double sided boards are
available in a variety of thicknesses, such as 10mil, 20mil, 31mil
and 62mil.
The typical applications are microstrip and stripline circuits,
commercial airline broadband antenna,radar systems, millimeter wave
applications, point to point digital radio antenna etc.
The basic colour of RT/duroid 5880 PCB is black.
RT/duroid 5880 PCB also has the properties of low water absorption,
excellent chemical resistance etc.
If you have any questions, please feel free to contact us.
Thank you for your reading.
Appendix: Typical Properties of RT/duroid 5880
| Property | RT/duroid 5880 | Direction | Units | Condition | Test Method |
| Dielectric Constant,εProcess | 2.20
2.20±0.02 spec. | Z | N/A | C24/23/50
C24/23/50 | 1 MHz IPC-TM-650 2.5.5.3
10 GHz IPC-TM 2.5.5.5 |
| Dielectric Constant,εDesign | 2.2 | Z | N/A | 8GHz to 40 GHz | Differential Phase Length Method |
| Dissipation Factor,tanδ | 0.0004
0.0009 | Z | N/A | C24/23/50
C24/23/50 | 1 MHz IPC-TM-650 2.5.5.3
10 GHz IPC-TM 2.5.5.5 |
| Thermal Coefficient of ε | -125 | Z | ppm/℃ | -50℃to 150℃ | IPC-TM-650 2.5.5.5 |
| Volume Resistivity | 2 x 107 | Z | Mohm cm | C/96/35/90 | ASTM D 257 |
| Surface Resistivity | 3 x 107 | Z | Mohm | C/96/35/90 | ASTM D 257 |
| Specific Heat | 0.96(0.23) | N/A | j/g/k
(cal/g/c) | N/A | Calculated |
| Tensile Modulus | Test at 23℃ | Test at 100℃ | N/A | MPa(kpsi) | A | ASTM D 638 |
| 1070(156) | 450(65) | X |
| 860(125) | 380(55) | Y |
| Ultimate Stress | 29(4.2) | 20(2.9) | X |
| 27(3.9) | 18(2.6) | Y |
| Ultimate Strain | 6 | 7.2 | X | % |
| 4.9 | 5.8 | Y |
| Compressive Modulus | 710(103) | 500(73) | X | MPa(kpsi) | A | ASTM D 695 |
| 710(103) | 500(73) | Y |
| 940(136) | 670(97) | Z |
| Ultimate Stress | 27(3.9) | 22(3.2) | X |
| 29(5.3) | 21(3.1) | Y |
| 52(7.5) | 43(6.3) | Z |
| Ultimate Strain | 8.5 | 8.4 | X | % |
| 7.7 | 7.8 | Y |
| 12.5 | 17.6 | Z |
| Moisture Absorption | 0.02 | N/A | % | 0.62"(1.6mm) D48/50 | ASTM D 570 |
| Thermal Conductivity | 0.2 | Z | W/m/k | 80℃ | ASTM C 518 |
| Coefficient of Thermal Expansion | 31
48
237 | X
Y
Z | ppm/℃ | 0-100℃ | IPC-TM-650 2.4.41 |
| Td | 500 | N/A | ℃ TGA | N/A | ASTM D 3850 |
| Density | 2.2 | N/A | gm/cm3 | N/A | ASTM D 792 |
| Copper Peel | 31.2(5.5) | N/A | Pli(N/mm) | 1oz(35mm)EDC foil
after solder float | IPC-TM-650 2.4.8 |
| Flammability | V-0 | N/A | N/A | N/A | UL 94 |
| Lead-free Process Compatible | Yes | N/A | N/A | N/A | N/A |
