4-Layer AD250C PCB with Immersion Tin Finish

The 4-Layer AD250C PCB is a high-performance circuit board designed to meet the demanding requirements of advanced RF and wireless antenna applications. Constructed with a combination of Rogers AD250C laminates and Tg170 FR-4, this PCB is engineered for low-loss, high-frequency performance while maintaining excellent dimensional stability and repeatable circuit behavior. With a finished thickness of 1.8mm, immersion tin surface finish, and advanced thermal properties, this PCB is ideal for applications such as base station antennas, automotive telematics, and satellite communication systems.

PCB Construction Details

PCB Stackup

PCB Statistics

The PCB is manufactured using Gerber RS-274-X artwork, ensuring compatibility with modern fabrication processes and precise production.

Material Overview: Rogers AD250C

Rogers AD250C laminates are high-performance, PTFE-based materials specifically designed for wireless antenna applications. These laminates combine low-loss properties, controlled dielectric constants, and excellent passive intermodulation (PIM) performance, making them a preferred choice for high-frequency designs.

Features:

1. Low Dielectric Constant (Dk): 2.5 ± 0.04 at 10GHz for superior signal integrity.
2. Low Dissipation Factor (Df): 0.0013 at 10GHz for minimal signal loss.
3. Low Passive Intermodulation (PIM): -159 dBc at 1900MHz for improved antenna performance.
4. Dimensional Stability: Enhanced yield and consistent circuit performance.
5. High Thermal Reliability: Tg > 280°C ensures structural stability during operation.

Benefits:

1. Low Loss Tangent: Ensures efficient performance in wireless frequency bands.
2. Controlled Dielectric Constant: Guarantees repeatable circuit behavior.
3. Durability and Reliability: Excellent thermal conductivity and dimensional stability reduce manufacturing defects.
4. Eco-Friendly Design: Halogen-free, meeting strict green standards.

Applications

Cellular infrastructure base station antennas

Telematics antenna systems

Commercial satellite radio antennas

Conclusion

The 4-Layer AD250C PCB with Immersion Tin Finish is a dependable, high-performance solution for RF and microwave designs. Its combination of Rogers AD250C laminates and Tg170 FR-4 cores ensures low-loss, high-frequency performance, thermal stability, and excellent PIM characteristics. With worldwide availability and compliance with IPC-Class-2 standards, this PCB is ideal for industries like telecommunications, automotive, and aerospace. Whether you're designing antennas, filters, or radar systems, this PCB delivers precision and reliability for your most demanding projects.