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WL-CT440 2-Layer 10mil Immersion Silver PCB Wangling High Tg PCB for Aerospace and Satellite Applications
WL-CT440 2-Layer 10mil Immersion Silver PCB Wangling High Tg PCB for Aerospace and Satellite Applications
Printed Circuit Boards are custom-made products; the images and specifications provided are for reference only.
1. WL-CT440 PCB Overview
WL-CT440 high-frequency circuit board is manufactured using Wangling's proprietary WL-CT440 organic polymer ceramic fiberglass cloth-covered copper clad laminates, a thermosetting resin-based high-frequency material tailored for advanced electronic applications. The dielectric layer of WL-CT series material is composed of hydrocarbon resin, ceramics, and fiberglass cloth, endowing the composite circuit board with excellent low-loss performance that meets the stringent requirements of high-frequency design. A key advantage of the WL-CT440 laminate material lies in its compatibility with FR4-like processing techniques, which simplifies manufacturing compared to PTFE-based materials while ensuring superior circuit stability and consistency. As a high-performance alternative to similar foreign products, this composite combines the advantages of hydrocarbon resin and composite ceramics to deliver exceptional low loss, high-temperature resistance, and thermal stability. WL-CT440 PCB material series features stable temperature coefficients of dielectric constant and loss, a low coefficient of thermal expansion, and a high glass transition temperature (Tg) of over 280°C, making it a reliable choice for demanding high-frequency scenarios.

2. Core Features
- Dielectric constant of 4.1 at 10 GHz/23°C
- Dissipation factor of 0.005 at 10 GHz
- High glass transition temperature (Tg) of 280℃
- Excellent temperature coefficient of dielectric constant (TCDK) of -21 ppm/°C
- High thermal conductivity of 0.66 W/MK
- Low moisture absorption rate of 0.12%
- Copper-matched coefficient of thermal expansion (CTE): 14 ppm/°C (X-axis), 18 ppm/°C (Y-axis), 35 ppm/°C (Z-axis)
- Complies with UL-94V0 flammability standard
3. Key Benefits
- Low-loss dielectric performance ensures superior signal integrity in high-frequency operations, minimizing signal attenuation and ensuring stable data transmission
- High Tg and excellent thermal stability enable reliable operation in high-temperature environments, suitable for aerospace and aviation applications
- Copper-matched CTE reduces thermal stress between copper layers and substrate, preventing circuit damage and enhancing long-term reliability
- FR4-compatible processing simplifies manufacturing processes, reducing production costs and improving production efficiency
- Low moisture absorption prevents performance degradation due to humidity, ensuring consistent performance in diverse environmental conditions
- UL-94V0 certification guarantees high fire safety, meeting the strict safety requirements of critical applications
- 100% electrical testing before shipment ensures product quality and reduces the risk of defective products reaching customers
- Worldwide availability supports global project deployment, facilitating easy access for international customers
4. PCB Construction Specifications
- Layer count: 2-layer
- Base material: WL-CT440
- Board dimensions: 56.5mm x 89.65 mm (1PCS), tolerance of +/- 0.15mm
- Minimum Trace/Space: 6/7 mils
- Minimum Hole Size: 0.35mm
- No Blind vias
- Finished board thickness: 0.3mm
- Finished Cu weight: 1oz (1.4 mils) for outer layers
- Via plating thickness: 20 μm
- Surface finish: Immersion gold
- Top Silkscreen: White
- Bottom Silkscreen: No
- Top Solder Mask: Green
- Bottom Solder Mask: No
- 100% Electrical test used prior to shipment
5. PCB Stackup Configuration
2-layer rigid PCB structure, detailed as follows:
- Copper_layer_1: 35 μm
- WL-CT440: 0.254 mm (10mil)
- Copper_layer_2: 35 μm
6. PCB Technical Statistics
- Components: 23
- Total Pads: 56
- Thru Hole Pads: 30
- Top SMT Pads: 26
- Bottom SMT Pads: 0
- Vias: 32
- Nets: 2
7. Supplementary Product Information
- Type of artwork supplied: Gerber RS-274-X
- Accepted standard: IPC-Class-2
- Availability: Worldwide
8. Typical Applications
- Aerospace equipment, space, cabin equipment, aircraft
- Microwave, antenna, phase-sensitive antenna
- Early warning radar, airborne radar
- Phased array antenna, beam wave network
- Satellite communication, navigation
- Power amplifier
9. Conclusion
Wangling WL-CT440 2-Layer high-frequency PCB board is a high-performance electronic component designed with advanced WL-CT440 high-frequency material. It integrates low-loss dielectric performance, excellent thermal stability, copper-matched CTE, and convenient processing characteristics, fully meeting the rigorous requirements of critical high-frequency applications such as aerospace equipment, satellite communication, and radar systems. With compliance to international quality standards and global availability, WL-CT440 circuit board provides a cost-effective and reliable solution for global customers' high-frequency electronic product development and production needs.
Founded in 2003, Shenzhen Bicheng Electronics Technology Co., Ltd is an established high frequency PCB supplier and exporter in Shenzhen, China, serving customers worldwide.
We are devoted to delivering high-frequency PCB products and solutions of the highest quality, along with customized service. Get in touch with us to start your project !
Visit https://www.bicheng-enterprise.com to learn more.

