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Rogers CLTE-XT High-Frequency PCBs Ceramic-Filled Woven Glass-Reinforced PTFE Circuit Boards in 9.4mil 25mil 40mil and 59mil
Rogers CLTE-XT High-Frequency PCBs Ceramic-Filled Woven Glass-Reinforced PTFE Circuit Boards in 9.4mil 25mil 40mil and 59mil
Printed Circuit Boards are custom-made products; the images and specifications provided are for reference only.
Introduction
Rogers CLTE-XT High-Frequency PCBs are composite materials composed of polytetrafluoroethylene (PTFE), woven fiberglass reinforcement, and micro-dispersed ceramic filler. Designed to enhance loss tangent, these laminates simultaneously maintain strong dimensional stability—ensuring minimal warpage or deformation during processing—and deliver excellent thermal reliability, making them resilient to temperature fluctuations. Additionally, they retain high-caliber electrical performance, making them well-suited for applications that demand consistent signal integrity and durability in high-frequency or harsh operating environments.
Features and Benefits
- Copper matched CTE in X and Y axis
- Low Z-direction CTE of 20 ppm /°C
- Low dissipation factor of 0.0010 at 10 GHz reduced circuit losses without sacrificing dimensional stability
- Tightest dielectric constant tolerance(+/- .03) and DK stability with temperature change
- High reliability on plated through holes
- 0.02% low moisture absorption
- Great number of NASA outgassing values.
- High thermal conductivity of 0.56 W/m/K
Our PCB Capability (CLTE-XT laminates)
| PCB Capability (CLTE-XT Laminates) | |
| PCB material: | Ceramic/PTFE Microwave Composite |
| Designation: | CLTE-XT |
| Dielectric constant: | 2.94 |
| Layer count: | Sinlge-sided PCB, Double-sided PCB, Multi-layer PCB, Hybrid PCB |
| Dielectric thickness: | 5.1mil(0.130mm), 9.4mil (0.239mm), 20mil (0.508mm), 25mil(0.635mm), 30mil(0.762mm), 40mil(1.016mm), 45mil(1.143mm), 59mil(1.499mm), 60mil(1.524mm) |
| Copper weight: | 1oz (35µm), 2oz (70µm) |
| PCB size: | ≤400mm X 500mm |
| Solder mask: | Green, Black, Blue, Red, Yellow etc. |
| Surface finish: | Immersion gold, HASL, Immersion silver, Immersion tin,ENEPIG, Bare copper, OSP, Pure gold plated etc.. |
Typical Applications
1. Advanced Driver Assistance Systems (ADAS)
2. CNI (communication, navigation and identification) Applications
3. Defense Microwave/RF Applications
4. Microwave Feed Networks
5. Phased Array Antennas
6. Power Amplifiers
7. Patch Antennas
8. Radar Manifolds
9. Satellite & Space Electronics
Data Sheet (CLTE-XT laminates)
| Properties | CLTE-XT | Units | Test Conditions | Test Method | |
| Electrical Properties | |||||
| Dielectric Constant | 2.79 (5.1mil) | - | 23˚C @ 50% RH | 10 GHz | IPC TM-650 2.5.5.5 |
| 2.89 (9.4mil) | |||||
| 2.92 (20mil) | |||||
| 2.94 (30mil) | |||||
| Dissipation Factor | 0.0010 | - | 23˚C @ 50% RH | 10 GHz | IPC TM-650 2.5.5.5 |
| Dielectric Constant (design) | 2.93 | - | C-24/23/50 | 10 GHz | Microstrip Differential Phase Length |
| Thermal Coefficient of Dielectric Constant | -8 | ppm/˚C | -50°C to 150°C | 10 GHz | IPC TM-650 2.5.5.5 |
| Volume Resistivity | 4.25x10⁸ | Mohm-cm | C-96/35/90 | - | IPC TM-650 2.5.17.1 |
| Surface Resistivity | 2.49x10⁸ | Mohm | C-96/35/90 | - | IPC TM-650 2.5.17.1 |
| Electrical Strength (dielectric strength) | 1000 | V/mil | - | - | IPC TM-650 2.5.6.2 |
| Dielectric Breakdown | 58 | kV | D-48/50 | X/Y direc- tion | IPC TM-650 2.5.6 |
| Thermal Properties | |||||
| Decomposition Temperature (Td) | 539 | ˚C | 2hrs @ 105˚C | 5% Weight Loss | IPC TM-650 2.3.40 |
| Coefficient of Thermal Expansion - x | 12.7 | ppm/˚C | - | -55˚C to 288˚C | IPC TM-650 2.4.41 |
| Coefficient of Thermal Expansion - y | 13.7 | ppm/˚C | - | -55˚C to 288˚C | IPC TM-650 2.4.41 |
| Coefficient of Thermal Expansion - z | 40.8 | ppm/˚C | - | -55˚C to 288˚C | IPC TM-650 2.4.41 |
| Thermal Conductivity | 0.56 | W/(m.K) | - | z direction | ASTM D5470 |
| Time to Delamination | >60 | minutes | as-received | 288˚C | IPC TM-650 2.4.24.1 |
| Mechanical Properties | |||||
| Copper Peel Strength after Thermal Stress | 1.7 (9) |
N/mm (lbs/ in) | 10s @288˚C | 35 μm foil | IPC TM-650 2.4.8 |
| Flexural Strength (MD, CMD) | 40.7, 40.0 (5.9, 5.8) |
MPa (ksi ) | 25˚C 3˚C | - | ASTM D790 |
| Tensile Strength (MD, CMD) | 29.0, 25.5 (4.2, 3.7) |
MPa (ksi ) | 23C/50RH | - | ASTM D638 |
| Flex Modulus (MD. CMD) | 3247, 3261 (471, 473) |
MPa (ksi ) | 25C 3C | - | ASTM D790 |
| Dimensional Stability (MD, CMD) | -0.37, -0.67 | mm/m | 4 hr at 105˚C | - | IPC-TM-650 2.4.39a |
| Physical Properties | |||||
| Flammability | V-0 | - | - | C48/23/50 & C168/70 | UL 94 |
| Moisture Absorption | 0.02 | % | E1/105+D24/23 | - | IPC TM-650 2.6.2.1 |
| Density | 2.17 | g/cm³ | C-24/23/50 | - | ASTM D792 |
| Specifc Heat Capacity | 0.61 | J/g˚K | 2 hours at 105˚C | - | ASTM E2716 |
| NATA Outgassing | |||||
| Total Mass Lost | 0.02 | % | - | - | ASTM E595 |
| Collected Volatiles Condensable Material | 0 |

