TLF-35A is an organic-ceramic laminate suitable for cost-effective, high-volume microwave and RF applications. Its advanced version features improved PIMD properties with DK3.5 for better signal integrity. It is strategically designed for size-efficient boards, particularly in antenna applications.
In this article, we’ll discuss what really characterizes the high frequency TLF-35A laminate. The relevant information is available for pcb design engineers to refer to in the selection of materials, And you can also call QFPCB to discuss. QFPCB offers the best services when it comes to the high frequency print circuit board, so please feel free to contact us.

What is the high frequency TLF-35A laminate?
TLF-35A is an organic-ceramic laminate within Taconic’s product family. The advanced version of TLF-35A is ideally suited for low-cost, high-volume commercial microwave and radio frequency applications. This material exhibits excellent peel strength for both ½ ounce and 1 ounce copper and is engineered to deliver superior high-frequency performance. Advanced TLF-35A laminates demonstrate electrical properties similar to those of standard TLF-35A but with tighter DK tolerance.
The advanced TLF-35A is specifically designed to achieve improved passive intermodulation distortion (PIMD) performance on size-efficient boards for antenna applications. While most PIMD-sensitive base materials have a dielectric constant around 3.0, TLF-35A advanced features a dielectric constant of 3.5 with comparable PIMD levels, making it a suitable choice for specific applications requiring higher DK values.
Distinguished from its predecessor, The laminate Advanced not only mirrors the commendable electrical properties of TLF-35A but also features a more stringent dielectric constant (DK) tolerance. The refined formulation of TLF-35A Advanced is strategically designed to improve PIMD performance on size-efficient boards, especially in antenna applications.

The high frequency TLF-35A laminate data sheet

Features of the high frequency TLF-35A laminate
Improved PIMD with DK3.5
The material’s enhanced polymer intermetal dielectric (PIMD) properties, incorporating DK3.5, contribute to a more controlled dielectric constant and improved signal integrity. With a stable dielectric constant (Dk) of 3.5, The laminate minimizes passive intermodulation distortion (PIMD), ensuring superior signal integrity in high-frequency environments.
Improved PTH Quality
Enhanced plated through-hole (PTH) quality ensures superior electrical connectivity, vital for high-density circuit board designs. The material delivers exceptional plated through-hole (PTH) reliability, critical for multilayer PCB designs requiring robust interconnects.
Stable at High Frequency
TLF-35A maintains its performance even at high frequencies, making it ideal for applications that require precise signal transmission. The laminate maintains consistent electrical performance even at millimeter wave frequencies, making it ideal for 5G, radar, and satellite systems.
Stable at High Temperature
The laminate exhibits excellent thermal stability, ensuring reliable operation under harsh environmental conditions. Stable performance up to high temperatures (e.g., lead-free reflow conditions) ensures durability in harsh operating environments.
Low Moisture Absorption
With minimal moisture uptake (<0.03%), TLF-35A resists delamination and maintains electrical stability in humid conditions. Minimal moisture uptake minimizes the risk of degradation and performance variations over time.
Excellent Peel Strength
The strong adhesion between layers guarantees durability and longevity in demanding applications. Strong adhesion between copper and laminate guarantees long-term mechanical reliability.
Excellent price/performance Ratio
Combines high-end performance with cost-effectiveness, ideal for budget-conscious projects without compromising quality. Combining advanced features with cost-effectiveness, TLF-35A offers a balanced solution for high-performance electronics without compromising budget constraints.
Applications of the high frequency TLF-35A laminate
The versatility of TLF-35A laminate is reflected in its broad range of applications across the electronics industry. It is especially well-suited for:
Size effective Antenna
Enables compact, high-gain antenna designs for 5G base stations, IoT devices, and aerospace systems. Its low dielectric constant and controlled impedance make it an excellent choice for compact, efficient antennas.
Power Amplifiers
The laminate’s thermal and frequency stability ensure that power amplifiers operate efficiently and reliably. Supports high-power handling with low loss, essential for cellular infrastructure and radar systems.
LNA and Repeater PA
For low-noise amplifiers (LNA) and repeater power amplifiers, TLF-35A provides the necessary signal integrity and stability. Delivers low noise figure and high linearity for signal amplification in communication networks.
Ideal for capacitors, inductors, and resistors requiring stable impedance and low insertion loss. Its inherent stability and processing compatibility make it ideal for various passive components, ensuring consistent performance.
Filters & Couplers
Enables precise frequency control and coupling efficiency in RF front-end modules. The material’s dielectric properties enable precise filtering and coupling functions, critical for maintaining signal quality in RF applications.
Advantages of the high frequency TLF-35A laminate
In addition to its excellent performance characteristics, the laminate offers significant advantages during the manufacturing process:
Frequency Performance
Tight Dk and dissipation factor (Df) tolerances ensure predictable results across production batches. The material is designed to support high-frequency applications, ensuring minimal signal loss and high integrity in critical applications.
Thermal Stability
Its ability to withstand high temperatures during processing helps in reducing production-related failures and ensures consistent product quality. Withstands high-temperature lamination and assembly processes without warping or degradation.
Processing Compatibility
Compatible with standard FR-4 manufacturing workflows, including drilling, plating, and etching, reducing adaptation costs. TLF-35A is compatible with various manufacturing processes, including standard PCB fabrication techniques, which simplifies integration into existing production lines.
Cost Considerations
With its impressive price/performance ratio, this laminate allows manufacturers to achieve high-quality outcomes without escalating production costs, making it a cost-effective solution for high-performance electronic assemblies. Combines ease of processing with material affordability, lowering overall PCB fabrication expenses.
TLF-35A laminate stands out as a multifaceted material that combines robust physical properties with a broad spectrum of applications. Its enhanced PIMD properties, superior PTH quality, and exceptional stability under high frequency and temperature conditions make it an indispensable material in the electronics industry. For more information or inquiries about TLF-35A laminates, feel free to reach out! We hope this overview has provided valuable insights into the capabilities and potential applications of these innovative materials.
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