How Can TLY-5Z High Frequency PCBs Enhance Thermal and Dimensional Stability in Your Designs?

In the world of high-frequency electronics, the choice of printed circuit board (PCB) material is critical to achieving optimal performance, especially in demanding sectors such as aerospace and communications.TLY-5Z high frequency PCBs stand out as an advanced solution, specifically engineered to deliver exceptional electrical and mechanical properties under challenging conditions.

Taconic TLY-5Z laminates are composite materials that combine glass-filled polytetrafluoroethylene (PTFE) with woven fiberglass reinforcement. This unique construction is tailored for applications where low density is essential—such as in aerospace systems—where every gram matters. Unlike unreinforced PTFE materials, Taconic TLY-5Z PCB offers outstanding dimensional stability, significantly reducing Z-axis expansion. This property is uncommon in conventional PTFE-rich composites and is crucial for maintaining structural integrity under thermal stress.

A key advantage of TLY-5Z Taconic RF PCB Circuit Board is its superior thermal management. When compared to standard low-Dk PTFE composites, it demonstrates enhanced resistance against z-axis expansion, which in turn minimizes stress on plated through-holes. This ensures greater reliability during thermal cycling and improves drilling precision during the manufacturing process.

Key Properties of TLY-5Z Laminates

Adhering to IPC standards, TLY-5Z exhibits a range of impressive material characteristics:

• Specific Gravity: 1.92 g/cm³(IPC-650 2.3.5)
• Dielectric Constant (Dk): 2.20±0.04 at 10 GHz (IPC-650 2.5.5.5.1)
• Dissipation Factor (Df): 0.0015 at 10 GHz (IPC-650 2.5.5.5.1)
• Coefficient of Thermal Expansion (CTE):
• X-axis: 30 ppm/°C
• Y-axis: 40 ppm/°C
• (measured between 25°C and 260°C per IPC-650 2.4.41)

These properties make TLY-5Z twice as dimensionally stable as traditional PTFE substrates. Such thermal stability allows for improved drilling quality and supports repeated thermal cycles without failure. Moreover, the material facilitates easy grounding and stitching along high-frequency transmission lines, which is essential for signal integrity in RF designs.

Additionally, TLY-5Z boasts minimal moisture absorption—only 0.03% as per IPC-650 2.6.2.1—and a UL-94 V-0 flammability rating, making it both highly reliable and safe for critical applications.

PCB Manufacturing Capabilities with TLY-5Z

We support a wide range of PCB configurations to meet diverse design requirements:

• Board Types: Single-sided, Double-sided, Multilayer, and Hybrid constructions
• Copper Weights: 1oz (35µm) or 2oz (70µm)
• Laminate Thickness: 10mil (0.254mm), 20mil (0.508mm), 30mil (0.762mm), and 60mil (1.524mm)
• Maximum PCB Dimensions: 400mm x 500mm
• Solder Mask Colors: Green, Black, Blue, Yellow, Red, and others
• Surface Finishes: Bare Copper, HASL, ENIG, Immersion Silver, Immersion Tin, ENEPIG, OSP, and Pure Gold Plating

These options provide designers with the flexibility to optimize their high-frequency circuits for performance, durability, and aesthetic requirements.

Typical Applications

TLY-5Z Taconic PCBs are widely used in applications where lightweight, stable, and reliable performance is non-negotiable. Common uses include:

• Aerospace communication and navigation systems
• Lightweight antennas for aircraft and satellites
• RF passive components including filters, couplers, and power dividers
• Advanced radar and wireless infrastructure

Whether for prototyping or high-volume production,TLY-5Z Taconic RF PCB provide a future-proof solution for next-generation high-frequency electronic devices.