Taconic TLX-8 DK2.55 High-Volume Fiberglass Reinforced RF Microwave Substrate

Taconic TLX-8 DK2.55 High-Volume Fiberglass Reinforced RF Microwave Substrate

Taconic TLX-8 is a high-performancefiberglass reinforced microwave substrate engineered for high-volume RF/microwave applications, boasting a PTFE-based fiberglass laminate structure that delivers exceptional reliability across diverse operating conditions. This Taconic substrate is optimized for low-layer count microwave circuit designs, with a dielectric constant (Dk) range of 2.45-2.65 that is tightly controlled and exhibits minimal variation across temperature extremes.

What sets TLX-8 laminate apart is its industry-leading performance in passive intermodulation (PIM), mechanical robustness, thermal stability, and environmental resistance—making it a staple material for critical RF components and systems that demand consistent performance in harsh operating environments.

With a proven track record in space applications and a NASA-qualified low-outgassing profile, TLX-8 PCB substrate excels in scenarios where substrates face severe stress, including high vibration, extreme temperatures, radiation exposure, and marine conditions. Its low moisture absorption, dimensional stability, and UL 94 V-0 flammability rating further enhance its suitability for aerospace, defense, mobile communications, and test equipment applications. For designs requiring even higher temperature stability of dielectric properties, TSM-DS3 is recommended as a complementary material option.

Core Advantages

• Ultra-low PIM performance for PCBs (measured at less than -160 dBc*)
• Superior mechanical strength and thermal stability for harsh environments
• Low, stable, and tightly controlled dielectric constant (Dk)
• Exceptional dimensional stability under thermal and mechanical stress
• Negligible moisture absorption to prevent performance degradation
• Low dissipation factor (DF) for minimal signal loss
• UL 94 V-0 flammability rating for fire safety compliance
• Tailored for low-layer count microwave circuit designs

 *Test conditions: Manufactured PCB coupon with 20 watts per channel at 800 and 1800 MHz.

Key Application Areas

TLX-8 DK2.55 Taconic substrate’s versatility and performance make it ideal for a broad range of RF/microwave components and systems, including:

• RF Antennas (including warship, aerospace, and mobile communication antennas)
• Microwave passive components: Mixers, splitters, filters, and combiners
• Couplers, amplifiers, and custom passive RF assemblies
• Radar systems, microwave test equipment, and transmission devices
• Aerospace/space components (altimeter substrates, launch vehicle PWBs)
• Engine module RF components (high-temperature exposure)
• Marine defense RF systems (extreme sea environments)

Material Performance Specifications

All test data listed are typical values (not specification tolerances). For critical application tolerance requirements, contact AGC directly for official specifications.

Available Product Configurations

Dielectric Thickness

Standard & Custom Sheet Sizes

*For custom thicknesses, sheet sizes, or copper cladding options, contact AGC directly for availability.

Additional Notes

• TLX-8 high frequency laminate features a Dk variation of only±2% across a wide temperature range (-55°C to 125°C).
• The material’s fiberglass reinforcement provides excellent creep resistance—critical for PWBs bolted to housings in high-vibration environments (e.g., space launches).
• NASA-qualified low outgassing profile (see NASA’s low outgassing materials website for details).