CuClad 250 PCB 2-Layer 20mil High-Frequency PTFE Laminates for Radar and Microwave Components
1. Introduction to CuClad 250
Rogers CuClad 250 laminates are high-performance, cross-plied woven fiberglass and PTFE composite materials. These laminates feature low dielectric constants ranging from 2.40 to 2.55 at 10GHz. With a higher fiberglass/PTFE ratio, CuClad 250 provides mechanical properties comparable to conventional substrates, ensuring excellent dimensional stability and reduced thermal expansion in all directions.
2. Features
-Dielectric Constant DK 2.4 - 2.55 at 10GHz / 1MHz
-Dissipation Factor 0.0017 at 10GHz
-Low Moisture Absorption 0.03%
-Strong Peel Strength 14 lbs/in
-Low outgassing Performance
- Total Mass Loss (TML): 0.01%
- Collected Volatile Condensable Material (CVCM): 0.0%
- Water Vapor Regain (WVR): 0%
-Construction Cross-plied woven fiberglass with alternating plies oriented at 90 degrees
-High PTFE to Glass Ratio
3. Benefits
- Balanced electrical and mechanical properties due to cross-plied construction
- Low Dk allows for wider line widths, minimizing insertion loss
- Reduced circuit losses at high frequencies
- Improved dielectric constant uniformity compared to non-woven fiberglass laminates
- Ideal for Er-sensitive circuits
4. PCB Stackup: 2-Layer Rigid PCB
Layer |
Thickness |
Copper Layer 1 |
35 µm |
Rogers CuClad 250 Core |
0.508 mm (20 mil) |
Copper Layer 2 |
35 µm |
5. PCB Construction Details
-Board Dimensions:23.97 mm x 30.09 mm (1 PCS), +/- 0.15 mm
-Minimum Trace/Space: 4/4 mils
-Minimum Hole Size :0.3 mm
-Blind Vias: None
-Finished Board Thickness :0.6 mm
-Finished Copper Weight :1 oz (1.4 mils) for outer layers
-Via Plating Thickness :20 µm
-Surface Finish :ENIG
-Top Silkscreen: White
-Bottom Silkscreen: None
-Top Solder Mask: Blue
-Bottom Solder Mask: None
-Testing :100% electrical testing prior to shipment
6. PCB Statistics
-Components: 9
-Total Pads :23
-Through Hole Pads: 11
-Top SMT Pads :12
-Bottom SMT Pads: 0
-Vias :15
-Nets: 2
7. Type of Artwork Supplied
- Gerber RS-274-X
8. Quality Standard
- IPC-Class-2
9. Availability
- Worldwide
10. Typical Applications
- Radars, Electronic Countermeasures, Electronic Support Measures
- Microwave Components (LNAs, filters, couplers, etc.)