Minimize Signal Loss with DiClad 527 High Frequency PCB Solutions

September 18, 2025

In the fast-evolving world of electronics, the demand for high-frequency printed circuit boards (PCBs) that deliver reliability and precision has never been greater. Enter DiClad 527 — a high-frequency laminate from Rogers Corporation that sets a new standard for performance in demanding applications.

Whether you're designing radar systems, satellite communications, or next-generation antennas, DiClad 527 offers the electrical, thermal, and mechanical properties needed to succeed.

What Is DiClad 527?

DiClad 527 is a composite laminate made from woven fiberglass reinforcement and a PTFE (polytetrafluoroethylene) base. What sets it apart is its carefully optimized ratio of fiberglass to PTFE — higher than many comparable products — resulting in superior dimensional stability and registration accuracy.

This balance makes DiClad 527 an ideal substrate for high-frequency and high-speed digital circuits where consistency is critical.

Key Features of DiClad 527

1.Stable Dielectric Constant

Dk Value: 2.40 – 2.60 (tested at 10 GHz and 1 MHz)
Ensures consistent signal integrity across a wide frequency range.

2. Low Dissipation Factor

0.0017 at 10 GHz and 0.0010 at 1 MHz
Minimizes signal loss, making it perfect for high-frequency and high-speed designs.

3. High Dielectric Strength

Breakdown voltage exceeding 45 kV
Arc resistance over 180 seconds
Provides excellent electrical protection in high-power environments.

4. Thermal Stability

Matched CTE (coefficient of thermal expansion) with copper in the X and Y directions
Reduces risk of deformation under thermal stress.

5. Safety & Reliability

UL 94 V-0 flammability rating
Moisture absorption of only 0.03%
Maintains performance even in humid conditions.

6. Space-Grade Performance

Meets NASA outgassing standards
Total mass loss: 0.02%, Water vapor recovered: 0.01%
Ideal for aerospace and satellite applications.

PCB Capabilities with DiClad 527

DiClad 527 supports a wide range of configurations and customizations:

Layer Options: Single-sided, double-sided, multilayer, and hybrid builds
Copper Weight: 1 oz (35µm) or 2 oz (70µm)
Max Board Size: Up to 400mm x 500mm
Solder Mask Colors: Green, black, blue, yellow, red, purple, and more
Surface Finishes: Immersion gold, HASL, immersion silver, immersion tin, ENEPIG, OSP, bare copper, and pure gold

Whether you're building a compact IoT device or a large phased array system, DiClad 527 offers the flexibility to match your design needs.

Applications

DiClad 527 is widely used in high-performance fields such as:

Radar feed networks
Commercial phased array antennas
Low-loss base station antennas
Guidance and control systems
Digital radio antennas
Aerospace and satellite communications

Conclusion

DiClad 527 is more than just a PCB material — it's a solution for engineers who refuse to compromise on performance. With its exceptional electrical properties, thermal stability, and space-ready credentials, it’s the go-to choice for high-frequency, high-reliability applications.

Ready to integrate DiClad 527 into your next project? Contact us today to learn how we can support your high-frequency PCB needs.