DiClad 527 PCB Substrate Copper Clad Laminate Sheet

DiClad 527 laminates are woven fiberglass-reinforced PTFE composite materials engineered for use as high-performance printed circuit board (PCB) substrates. Through precise calibration of the fiberglass-to-PTFE ratio, DiClad 527 offers a versatile product range—spanning variants with ultra-low dielectric constant (Dk) and dissipation factor (Df), to highly reinforced grades optimized for enhanced dimensional stability.

The woven fiberglass reinforcement core to all DiClad series materials delivers superior dimensional stability when compared to nonwoven fiberglass-reinforced PTFE laminates of equivalent dielectric constant. Rogers’ stringent process control and consistency for PTFE-coated fiberglass cloth enable a broader spectrum of available Dk values, while also producing laminates with improved dielectric constant uniformity over comparable nonwoven fiberglass-reinforced alternatives. DiClad materials feature unidirectionally aligned coated fiberglass plies; cross-plied configurations of most grades are available under the CuClad product line.

DiClad 527 laminates are ideally suited for applications where dielectric constant uniformity is a critical performance parameter, including RF filters, couplers, and low-noise amplifiers (LNAs). They are also a high-value choice for power dividers and combiners, where minimal signal loss is paramount. With a dielectric constant (Er) range of 2.40–2.65, DiClad 527 utilizes a higher fiberglass-to-PTFE ratio to achieve mechanical performance that approaches conventional PCB substrates—alongside additional advantages of enhanced dimensional stability and reduced thermal expansion across all axes. The electrical properties of DiClad 527 laminates are validated through rigorous testing at 1 MHz and 10 GHz, respectively.

Features & Benefits

• Ultra-low loss tangent
• Exceptional dimensional stability
• Consistent product performance
• Highly uniform electrical properties across the operating frequency range
• Reliable, repeatable mechanical performance
• Superior chemical resistance

Typical Applications

• Military radar feed networks
• Commercial phased array antenna networks
• Low-loss base station antennas
• Missile guidance systems
• Digital radio antennas
• RF filters, couplers, and low-noise amplifiers (LNAs)