20mil DiClad 527 High-Frequency PTFE PCB Double-sided

This custom 2-layer rigid high-frequency PCB utilizes Rogers DiClad 527 fiberglass-reinforced PTFE substrate, engineered for high-precision, low-loss RF and microwave circuit applications. The board is constructed with immersion gold surface finishing, black silkscreen printing on the top layer, no bottom silkscreen, and a double-sided solder mask-free structure.

PCB Specification

PCB Layer Stack-up Structure

Artwork & Quality Standards

Artwork Format: Manufacturing files are supplied in standard Gerber RS-274-X format, the universal industry specification that guarantees precise circuit patterning and full production compatibility.

Quality Standard: Each PCB meets IPC-Class-2 reliability standards, ensuring the performance and durability requirements for commercial and industrial electronic applications.

Supply Coverage: Global shipping and flexible delivery schedules are available to adapt to varied project timelines, supporting stable worldwide supply.

DiClad 527 Material Overview

Rogers DiClad 527 is a high-performance woven fiberglass-reinforced PTFE composite substrate specially developed for high-frequency PCB manufacturing. Featuring a precisely calibrated fiberglass-to-PTFE proportion, this material delivers a stable dielectric constant and superior dimensional stability when compared with traditional PTFE substrates. Its refined structural composition ensures accurate circuit registration and consistent electrical performance for advanced high-frequency circuit designs.

Core Material Performance Features

1. Stable Low-Loss Dielectric Properties

It maintains a stable dielectric constant ranging from 2.4 to 2.6 at both 1 MHz and 10 GHz, paired with an ultra-low dissipation factor of 0.0017 at 10 GHz, effectively minimizing high-frequency signal attenuation and phase distortion.

2. Reliable Thermal Dielectric Stability

The material exhibits a steady thermal coefficient of dielectric constant at -153 ppm/°C across a wide temperature range from -10°C to 140°C, sustaining stable dielectric performance under fluctuating thermal environments.

3. Excellent Structural Stability

Its well-matched coefficient of thermal expansion delivers balanced thermal expansion characteristics, which significantly reduces thermal stress and structural deformation during temperature cycling, ensuring outstanding long-term mechanical reliability.

4. Superior Environmental Adaptability

Boasting an ultra-low moisture absorption rate of 0.03%, the material generates negligible performance variation in high-humidity conditions, while its excellent chemical resistance enables reliable operation in harsh and complex working environments.

Typical Application Scenarios

Supported by ultra-low high-frequency loss, exceptional dimensional stability, uniform electrical characteristics and reliable environmental adaptability, DiClad 527 PCBs are extensively adopted in high-precision RF and microwave systems for various professional applications, as listed below:

-Radar feed networks and guidance systems

-Commercial phased array network equipment

-Low-loss base station antennas and digital radio antennas

-High-performance RF filters, couplers and LNA modules