AGC TLX-8 DK2.55 Df0.0018 (0.064-6.35mm) PTFE/Woven Fiberglass Laminate
Brief Introduction
TLX-8 is a high-volume fiberglass-reinforced microwave substrate offering reliability in a wide range of RF applications. This versatile PTFE/fiberglass laminate features a dielectric constant range of 2.45-2.65 and is available in various thicknesses and copper claddings. It is suitable for low layer count microwave designs and serves as a workhorse in the RF microwave substrate world, particularly where mechanical reinforcement is required in severe environments.
Technical Features & Benefits
Excellent PIM values in PCBs (measured lower than -160 dBc*)
Excellent mechanical and thermal properties
Low and stable dielectric constant
Dimensionally stable
Low moisture absorption
Tightly controlled Dk (±0.04)
Low dissipation factor (0.0018)
UL 94 V-0 flammability rating
For low layer count microwave designs
Long space heritage with NASA low outgassing compliance
~ ±2% variation in Dk from -55°C to 125°C
Typical Properties: TLX-8
| Properties |
Conditions |
Typical Value |
Unit |
Test Method |
| Electrical Properties | | | | |
| Dielectric Constant | @ 10 GHz | 2.55 ± 0.04 | | IPC-650 2.5.5.3 |
| Dissipation Factor | @ 10 GHz | 0.0018 | | IPC-650 2.5.5.5.1 |
| Outgassing | % TML | 0.03 | 4 H 257 °F @ ≤ 5 x 10⁻⁵ Torr | ASTM E 595 |
| % CVCM | 0.00 | | |
| % WVR | 0.01 | | |
| Surface Resistivity | | 6.605 x 10⁸ | MΩ | IPC-650 2.5.17.1 Sec. 5.2.1 (Elevated Temp.) |
| | 3.550 x 10⁶ | MΩ | IPC-650 2.5.17.1 Sec. 5.2.1 (Humidity Cond.) |
| Volume Resistivity | | 1.110 x 10¹⁰ | MΩ·cm | IPC-650 2.5.17.1 Sec. 5.2.1 (Elevated Temp.) |
| | 1.046 x 10¹⁰ | MΩ·cm | IPC-650 2.5.17.1 Sec. 5.2.1 (Humidity Cond.) |
| Dimensional Stability | MD | 0.06 | mm/m (mils/in) | IPC-650 2.4.39 Sec. 5.4 (After Bake) |
| CD | 0.08 | mm/m (mils/in) | |
| MD | 0.09 | mm/m (mils/in) | IPC-650 2.4.39 Sec. 5.5 (Thermal Stress) |
| CD | 0.10 | mm/m (mils/in) | |
| Thermal Properties | | | | |
| Thermal Conductivity | | 0.19 | W/m·K | ASTM F433/ASTM 1530-06 |
| CTE (25-260°C) | X | 21 | ppm/°C | IPC-650 2.4.41/ASTM D 3386 |
| Y | 23 | ppm/°C | |
| Z | 215 | ppm/°C | |
| Td | 2% Weight Loss | 535 | °C | IPC-650 2.4.24.6 (TGA) |
| 5% Weight Loss | 553 | °C | |
| Mechanical Properties | | | | |
| Peel Strength | 1 oz. ED | 2.63 (15) | N/mm (lbs/in) | IPC-650 2.4.8 Sec. 5.2.2 (Thermal Stress) |
| 1 oz. RTF | 2.98 (17) | N/mm² (kpsi) | |
| ½ oz. ED | 2.45 (14) | N/mm² (kpsi) | IPC-650 2.4.8.3 (Elevated Temp.) |
| ½ oz. ED | 1.93 (11) | N/mm² (kpsi) | IPC-650 2.4.8 Sec. 5.2.2 (Thermal Stress) |
| 1 oz. rolled | 2.28 (13) | N/mm² (kpsi) | |
| Young's Modulus | MD | 6,757 (980) | N/mm² (psi) | ASTM D 902 |
| CD | 8,274 (1,200) | N/mm² (psi) | |
| MD | 11,238 (1,630) | N/mm² (psi) | ASTM D 3039 |
| Chemical/Physical Properties | | | | |
| Moisture Absorption | | 0.02 | % | IPC-650 2.6.2.1 |
| Dielectric Breakdown | | > 45 | kV | IPC-650 2.5.6 |
| Flammability Rating | | V-0 | | UL-94 |
Application Areas
Antennas
Mixers, Splitters, Filters & Combiners
Passive Components
Radar systems
Mobile communications
Microwave test equipment
Microwave transmission devices
RF components
Applications requiring resistance to severe environments: space launch vibration, high temperature exposure, radiation resistance, extreme maritime conditions, wide temperature ranges during flight
Available Configurations
Dielectric Thickness Range: 0.0025" - 0.250" (0.064 mm - 6.35 mm); can be manufactured in increments of 0.005" (0.125 mm)
Standard Panel Size: 18" x 24" (457 mm x 610 mm)
Available Sheet Sizes:
12" x 18" (305 x 457 mm)
16" x 18" (406 x 457 mm)
18" x 24" (457 x 610 mm)
16" x 36" (406 x 914 mm)
24" x 36" (610 x 914 mm)
18" x 48" (457 x 1,220 mm)
36" x 48" (914 x 1,220 mm)
Copper Cladding: Various options available including ED, RTF, and rolled copper foils
Contact AGC for availability of additional thicknesses, other sizes, and other types of cladding
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