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20 mil RO4003C PCB
20 mil RO4003C PCB

RF-30A PCB 20mil: The Perfect Solution for High-Performance RF Applications

  • January 10. 2024

In the world of high-frequency applications, achieving optimal performance and reliability is crucial. That's where RF-30A PCB 20mil comes into play. Developed by Taconic, a leading manufacturer of RF substrates, RF-30A is an organic-ceramic laminate that offers exceptional electrical and mechanical properties. This cutting-edge PCB material is designed to meet the demands of low-cost, high-volume commercial microwave and radio frequency applications. In this article, we will delve deep into the features, benefits, construction details, and typical applications of the Taconic RF-30A PCB to help you understand why it is the ideal choice for your RF projects.

RF-30A Introduction

RF-30A stands out among Taconic's family of RF substrates for its superior performance and reliability. It is constructed using woven glass reinforcement, combined with Taconic's expertise in ceramic filler and PTFE coating technology. The result is a high-quality PCB material that exceeds the requirements of designers.

The low-loss dielectric substrate, coupled with low-profile copper foil, ensures stable electrical properties with improved PIMD levels and lower insertion loss over a wide frequency range. Furthermore, RF-30A exhibits remarkable mechanical properties, including lower CTE values, enhanced dimensional stability, and increased rigidity. These features contribute to minimizing the impact of external factors on RF components, making them more resilient and reliable.

The peel strength of RF-30A is excellent, particularly for 1/2 ounce and 1 ounce RT copper. This critical aspect is advantageous during rework or repeated reflow processes. Additionally, RF-30A boasts an ultra-low moisture absorption rate and a stable loss tangent, which helps minimize phase shifts in varying temperature and humidity environments. Moreover, its dimensional stability ensures consistent phase and impedance properties over a broad frequency range.

RF-30A has been optimized with ceramic fillers to achieve a low Z-axis CTE, resulting in improved reliability and ease of fabrication for multilayer circuits. These properties also contribute to more stable PIMD performance, ensuring the highest level of performance for RF applications.

 Taconic RF-30A PCB


RF-30A 20mil substrate PCB offers a range of impressive features that make it an exceptional choice for high-performance RF applications:

  • DK of 2.97 +/- 0.05 at 1.9 GHz/23°C: The dielectric constant is a crucial parameter for RF design, and RF-30A provides a stable and predictable value, enabling accurate signal propagation.
  • Dissipation factor of 0.0013 at 1.9 GHz/23°C: The dissipation factor, or loss tangent, measures the energy lost as heat during signal transmission. With an extremely low dissipation factor, RF-30A minimizes signal loss, preserving the integrity of your RF signals.
  • Thermal Conductivity of 0.42 W/m/K: Efficient heat dissipation is essential in high-power RF applications. RF-30A's impressive thermal conductivity ensures effective heat management, preventing overheating and maintaining reliable operation.
  • CTE in X-axis of 8 ppm/°C, Y-axis of 11 ppm/°C, and Z-axis of 60 ppm/°C: The coefficient of thermal expansion (CTE) determines the dimensional stability of the PCB. RF-30A's low CTE values reduce the risk of warping and ensure consistent performance across temperature variations.
  • Density (specific gravity) of 2.16 g/cm³: RF-30A's density contributes to its robustness and durability, allowing it to withstand demanding operating conditions.


By choosing RF-30A PCB for your RF projects, you can enjoy a wide range of benefits, including:

  1. Excellent PIM Values in PCBs: RF-30A delivers exceptional PIM values, measured at lower than -160 dBc, ensuring minimal interference and maximum signal integrity.
  2. Improved PTH Quality: The optimized ceramic fillers in RF-30A contribute to enhanced plated through-hole (PTH) reliability, reducing the risk of failures and improving the overall quality of your PCB.
  3. Stable Mechanical Properties: RF-30A's superior mechanical properties, such as lower CTE values, dimensional stability, and increased rigidity, ensure that your RF components remain unaffected by external factors, guaranteeing long-term stability and reliability.
  4. Stable at High Frequencies: With its low loss dielectric substrate and stable electrical properties, RF-30A is designed to perform consistently across a wide frequency range, making it suitable for high-frequency RF applications.
  5. Stable at High Temperatures: RF-30A can withstand high-temperature environments without compromising its electrical or mechanical properties. This capability is essential for applications that generate significant heat, ensuring reliable operation even under challenging conditions.
  6. Low Moisture Absorption: RF-30A has an ultra-low moisture absorption rate, preventing moisture-related issues such as delamination and minimizing phase shifts in varyingtemperature and humidity environments.

Typical Applications

RF-30Ahigh frequencyPCB is ideal for various high-performance RF applications, including:

1. Cellular base stations:

RF-30A's low loss and stable electrical properties make it suitable for the demanding requirements of cellular base station antennas and amplifiers.

2. Radar systems:

The stability and reliability of RF-30A make it a perfect choice for radar applications, where precision and accuracy are paramount.

3. Satellite communications:

RF-30A's exceptional performance at high frequencies and in harsh environments make it well-suited for satellite communication systems.

4. High-frequency test equipment:

RF-30A's low loss and stable properties make it an excellent substrate for high-frequency test equipment, ensuring accurate and reliable measurements.

5. Microwave point-to-point systems:

RF-30A's high-quality electrical and mechanical properties make it an ideal choice for microwave point-to-point systems, guaranteeing reliable signal transmission.

6. Automotive radar systems:

With its stable performance across temperature variations, RF-30A is well-suited for automotive radar systems, providing reliable and accurate detection capabilities.

7. Aerospace and defense applications:

The exceptional reliability and durability of RF-30A make it a preferred choice for aerospace and defense applications, where performance under extreme conditions is critical.

How does RF-30A compare to other materials in terms of cost and availability?

RF-30A is a specialized high-frequency material that offers excellent electrical properties and performance. However, it is important to note that the cost and availability of RF-30A, as well as other materials, can vary based on several factors. Here's a general comparison:

1. Cost:

RF-30A: Since RF-30A is a specialized material designed for high-frequency applications, it generally falls into the category of higher-cost materials. The cost is influenced by factors such as the manufacturing process, raw material costs, and demand in the market.

Other materials: There are various other materials available for PCB manufacturing, such as FR-4 (standard fiberglass epoxy), Rogers RO4000 series, Isola IS620, and Taconic TLX series. These materials are often more cost-effective compared to RF-30A, as they are more widely used and have larger production volumes.

2. Availability:

RF-30A: The availability of RF-30A may be more limited compared to other commonly used PCB materials due to its specialized nature. It may not be as readily available from all PCB material suppliers. However, it can still be sourced from specialized suppliers or manufacturers that focus on high-frequency materials.

Other materials: Materials like FR-4 and Rogers RO4000 series are widely available and commonly stocked by many PCB material suppliers. They have established supply chains and are readily accessible in the market.

It's important to consider both the cost and availability factors when selecting a material for your specific application. If you have a budget constraint or require a material that is readily available, you may explore alternatives to RF-30A. Your PCB manufacturer or material supplier can provide specific information on the cost and availability of different materials based on your requirements.

Please note that the information provided here is a general overview, and the specific cost and availability of materials can vary over time and based on market conditions.


Taconic RF-30A PCB 20mil is a high-performance substrate that meets the stringent requirements of RF applications. Its stable electrical properties, low loss, excellent PIM performance, and robust mechanical characteristics make it an ideal choice for a wide range of high-frequency applications. Whether you're designing cellular base stations, radar systems, satellite communications, or high-frequency test equipment, RF-30A can deliver the reliability and performance you need. With RF-30A, you can ensure optimal signal integrity, minimize interference, and achieve the highest level of performance in your RF projects.

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