Rogers TC350 PCB: High-Performance RF & Microwave Solution for Enhanced Thermal Management

Introduction

In the rapidly evolving world of high-frequency electronics, thermal management and signal integrity are critical for optimal performance.Rogers TC350 laminates are advanced PTFE-based composite substrates engineered with highly thermally conductive ceramic fillers and woven glass reinforcement, delivering exceptional thermal conductivity to improve heat dissipation. This unique composition minimizes dielectric and insertion losses, leading to higher gain and efficiency in amplifiers, antennas, and other RF/microwave applications.

One of the standout advantages of Rogers TC350 PCB is its ability to handle higher power levels while reducing hotspots, significantly enhancing device reliability. In designs where thermal management is limited, TC350 substrates improve heat transfer, lowering junction temperatures and extending the operational lifespan of active components. Additionally, its lower operating temperatures and compatible thermal expansion properties with semiconductor chips ensure stronger component attachment, reducing common failure modes such as solder fatigue and joint cracking.

Key Features and Benefits of Rogers TC350 PCB

1. Stable Dielectric Constant (Dk) for Precise Impedance Control

Rogers TC350 laminates feature a dielectric constant (Dk) of 3.5, ensuring consistent signal integrity and precise impedance control in high-frequency circuits. This stability is crucial for applications requiring low signal distortion, such as 5G infrastructure, radar systems, and satellite communications.

2. Superior Thermal Conductivity for Efficient Heat Dissipation

With an outstanding thermal conductivity of 0.72 W/m-K, TC350 PCBs effectively dissipate heat through the laminate, preventing thermal buildup that can degrade performance. This property is particularly beneficial in high-power RF amplifiers and base station antennas, where excessive heat can lead to premature failure.

3. Low Thermal Coefficient of Dk for Temperature Stability

The thermal coefficient of Dk for TC350 is an impressively low -9 ppm/°C (within the range of -40°C to 140°C), meaning that the material’s dielectric properties remain stable even under extreme temperature fluctuations. This ensures reliable signal transmission in harsh environments, such as aerospace and automotive radar systems.

4. Ultra-Low Loss Tangent for Minimal Signal Loss

At 10 GHz, Rogers TC350 exhibits an exceptionally low loss tangent of 0.002, which translates to minimal signal attenuation. This characteristic allows for better bandwidth utilization, making it ideal for high-frequency amplifiers, filters, and antenna systems that demand high efficiency and low noise.

5. Excellent Dimensional Stability with Low CTE

The coefficients of thermal expansion (CTE) for TC350 are well-controlled across all axes:

• X & Y-axis: 7 ppm/°C
• Z-axis: 23 ppm/°C

This low CTE ensures reliable plated through-hole (PTH) connections and superior dimensional stability, preventing warping or delamination during thermal cycling. As a result, this custom TC350 PCBs maintain long-term reliability in demanding applications.

PCB Manufacturing Capabilities for Rogers TC350

As a reliable PCB supplier, we offer advanced fabrication services tailored to Rogers TC350 laminates, ensuring high-quality, high-performance boards for your RF and microwave applications.

1. Board Configurations

Single-sided, double-sided, and multi-layer PCBs

Hybrid constructions (combining Rogers TC350 with other high-frequency materials like RO4003C or FR4)

2. Copper Weight Options

1 oz (35 µm)–Standard thickness for signal integrity

2 oz (70 µm)–Enhanced current-carrying capacity for power applications

3. PCB Thickness & Size

Available thicknesses: 10 mil, 20 mil, 25 mil, 60 mil, 125 mil

Maximum PCB size: 400 mm×500 mm

4. Solder Mask & Surface Finishes

Solder mask colors: Green, black, blue, yellow, red

Surface finishes: Bare copper, HASL, ENIG, OSP, immersion silver, immersion tin, ENEPIG, pure gold

Applications of Rogers TC350 PCB

Due to its exceptional thermal and electrical properties, Rogers TC350 is widely used in high-frequency and high-power applications, including:

• Power amplifiers (for 5G, radar, and satellite communications)
• RF filters & couplers
• Tower-mounted amplifiers (TMA) & boosters (TMB)
• Microwave combiners & power dividers
• Military & aerospace electronics
• Automotive radar & ADAS systems

Conclusion

TC350 high frequency PCB is a high-performance solution for demanding RF and microwave applications, offering superior thermal management, stable electrical properties, and excellent reliability. Whether you need high-power amplifiers, low-loss filters, or high-efficiency antennas, TC350 laminates provide the thermal and electrical stability required for optimal performance.

As an experienced PCB supplier, we specialize in producing high-quality Rogers TC350 boards tailored to your specifications. Contact us today to discuss your project requirements and leverage the benefits of this advanced material for your next high-frequency design!