CuClad 217 2-Layer 20mil PCB with Immersion Gold Finish
 
 
The CuClad 217 2-Layer PCB is a high-performance circuit board engineered for RF and microwave applications requiring superior electrical and mechanical stability. Built with Rogers CuClad 217 laminates, this PCB features a 20mil PTFE fiberglass composite core offering an exceptionally low dielectric constant and dissipation factor, enabling faster signal propagation and minimal signal loss. The Immersion Gold finish ensures excellent solderability and enhanced corrosion resistance, making it ideal for high-frequency, precision-critical designs.
 

 
Designed for applications such as radars, microwave components, and electronic countermeasures, this PCB delivers exceptional performance with IPC-Class-2 compliance and 100% electrical testing prior to shipment. Its optimized stackup and superior material properties make it a reliable choice for advanced RF applications.
 
 
Key Construction Details

 
This PCB stands out with blue solder mask on the top layer for added protection and durability, and white silkscreen for clear labeling and component identification.
 
 
 
PCB Stackup

• Copper Layer 1: 35 μm (1oz), providing excellent electrical conductivity.
• Core Layer: 20mil CuClad 217 substrate (0.508mm), offering low dielectric constant and high dimensional stability.
• Copper Layer 2: 35 μm (1oz), ensuring consistent signal transmission and grounding.

 
 
What is Rogers CuClad 217 Laminate?
The CuClad 217 laminate is a high-performance PTFE-based material reinforced with cross-plied woven fiberglass. With its low dielectric constant (Dk) and extremely low dissipation factor, it provides exceptional signal propagation and low circuit losses, even at high frequencies. Its PTFE-to-glass ratio ensures uniform dielectric properties, while its cross-plied construction enhances mechanical and electrical isotropy in the X-Y plane.
 
 
 
Key Features of CuClad 217 Material:

 
 
 
 
Benefits of the CuClad 217 PCB
Low Signal Loss: The low dissipation factor (0.0009 at 10GHz) ensures minimal signal attenuation, critical for high-frequency designs.
 
Stable Dielectric Properties: The low dielectric constant (Dk) of 2.17 or 2.20 provides superior signal propagation and supports wider line widths for reduced insertion loss.
 
Enhanced Dimensional Stability: The cross-plied fiberglass structure ensures excellent mechanical stability and isotropy in the X-Y plane.
 
Moisture and Chemical Resistance: With a moisture absorption rate as low as 0.02%, the PCB maintains stable performance in humid or harsh environments.
 
High Reliability: The low Z-axis coefficient of thermal expansion (CTE) improves reliability of plated-through holes (PTHs), even under thermal stress.
 
 
Applications
The CuClad 217 2-Layer PCB is designed for a wide range of high-frequency and precision-critical applications, including:
Radars
Electronic Countermeasures
Electronic Support Measures
Microwave Components
 
 
Conclusion
The CuClad 217 2-Layer 20mil PCB with Immersion Gold finish is the perfect solution for RF and microwave engineers seeking exceptional electrical performance, mechanical stability, and durability. With its Rogers CuClad 217 laminate, precision construction, and adherence to IPC-Class-2 standards, this PCB offers the reliability and performance required for demanding applications like radars, electronic countermeasures, and microwave components.
 
 
Engineered for superior signal integrity and low circuit losses, this PCB is available worldwide and rigorously tested to ensure consistent quality and performance.