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Jarnistech > ITEQ PCB > ITEQ IT-150DA

In the ever-evolving world of electronics, the demand for high-performance printed circuit boards (PCBs) capable of withstanding extreme temperatures continues to rise. One such solution that has gained recognition is the ITEQ IT-150DA high TG PCB substrate. Designed to excel in challenging environments, the IT-150DA substrate offers remarkable thermal stability, exceptional electrical performance, and robust mechanical strength. This article explores the key features and applications of ITEQ IT-150DA, highlighting its significance in empowering high-temperature PCB designs


High Tg / Lead Free / Very Low Loss Laminate & Prepreg

The IT-150DA is a high TG (glass transition temperature) PCB (printed circuit board) substrate that is designed for applications requiring superior thermal performance and reliability. It is commonly used in electronic devices and systems where high temperatures and demanding operating conditions are present.

The acronym “TG” refers to the glass transition temperature, which is the temperature at which the material changes from a rigid, glassy state to a softer, rubbery state. High TG materials have a higher glass transition temperature, typically above 150°C, which means they can withstand higher temperatures without undergoing significant dimensional changes or losing mechanical integrity.

The IT-150DA substrate is known for its excellent thermal stability and low coefficient of thermal expansion (CTE). These properties make it highly suitable for applications that involve high-power components, such as power electronics, automotive electronics, and industrial equipment, where heat dissipation and reliability are critical.

The IT-150DA substrate is typically made from a composite material that consists of a high-quality epoxy resin reinforced with glass fibers. This combination provides the substrate with excellent mechanical strength, dimensional stability, and resistance to thermal stress.

Key features and benefits of the IT-150DA high TG PCB substrate include:

1. High thermal stability: The substrate can withstand elevated temperatures without losing its mechanical properties, ensuring reliable performance under demanding conditions.

2. Low CTE: The low coefficient of thermal expansion minimizes the risk of mechanical stress and failure due to thermal cycling.

3. Excellent electrical performance: The substrate offers good electrical insulation properties and low signal loss, making it suitable for high-frequency applications.

4. Enhanced reliability: The high TG material improves the overall reliability of the PCB, reducing the risk of delamination, warping, and other structural issues.

5. Compatibility with lead-free assembly processes: The IT-150DA substrate is compatible with lead-free soldering processes, meeting the requirements of environmentally friendly manufacturing.

Overall, the IT-150DA high TG PCB substrate is a reliable and high-performance material that can meet the demanding requirements of modern electronic applications. Its excellent thermal stability, low CTE, and electrical performance make it an ideal choice for applications where heat dissipation and reliability are crucial.

What Materials Make of ITEQ IT-150DA Laminate?

The ITEQ IT-150DA laminate is typically composed of the following materials:

1.Resin System:

The IT-150DA laminate uses a high-performance resin system as its base material. The specific resin system used by ITEQ may vary, but it is designed to provide excellent thermal stability and high glass transition temperature (TG).

2.Reinforcement Material:

The laminate incorporates a reinforcement material, usually fiberglass, to provide mechanical strength and dimensional stability. Fiberglass is commonly used in PCB substrates due to its excellent electrical insulation properties and high tensile strength.

3.Copper Foil:

The IT-150DA laminate features a layer of copper foil bonded to the resin system. The copper foil provides the conductive paths for electrical signals on the PCB and allows for the attachment of electronic components through soldering or other connection methods.


Prepreg is a resin-impregnated fiberglass material used to bond multiple layers of laminate together during the PCB manufacturing process. It acts as an adhesive layer between the copper layers and helps ensure the structural integrity and electrical connectivity of the PCB.

These are the primary materials typically used in the construction of the ITEQ IT-150DA laminate. The specific composition and properties may vary depending on the manufacturer’s formulation and the desired performance characteristics of the substrate. It’s always recommended to consult with the manufacturer or supplier for detailed information on the exact materials and specifications of the IT-150DA laminate.

ITEQ IT-150DA Comparison with Other High TG Substrates

The ITEQ IT-150DA high TG PCB substrate is one of several options available in the market for high TG applications. Here’s a comparison of IT-150DA with some other commonly used high TG substrates:

1.Isola FR408:

Isola FR408 is a widely used high TG substrate with a glass transition temperature of around 180°C. It offers excellent thermal stability and low CTE, similar to IT-150DA. Both substrates are suitable for high-temperature applications and provide good electrical performance.

2.Panasonic Megtron 6:

Megtron 6 is another high TG substrate known for its high thermal reliability and low CTE. It has a glass transition temperature of approximately 180°C, similar to Isola FR408. Megtron 6 also offers good electrical properties and is commonly used in high-speed and high-frequency applications.

3.Rogers RO4000 Series:

The Rogers RO4000 series is a family of high-performance PCB substrates designed for high-frequency applications. These substrates have a high TG and low loss tangent, making them suitable for microwave and RF applications. While they may have a lower glass transition temperature compared to IT-150DA, they excel in high-frequency performance.

4.Nelco N4000-13EP:

Nelco N4000-13EP is a high TG substrate known for its excellent thermal stability and low CTE. It has a glass transition temperature of around 170°C and offers good electrical properties. N4000-13EP is commonly used in high-power applications where thermal management is critical.

When comparing high TG substrates, it’s essential to consider the specific requirements of your application, such as operating temperature, thermal management needs, electrical performance, and cost. Each substrate has its own strengths and may be more suitable for certain applications based on these factors.

Considerations for Choosing ITEQ IT-150DA in PCB Design

When considering the ITEQ IT-150DA high TG PCB substrate for your PCB design, there are several key factors to take into account:

1. Operating Temperature: The IT-150DA substrate is designed to withstand high temperatures. Consider the maximum operating temperature of your application and ensure that the substrate’s glass transition temperature (TG) is higher than that temperature to maintain dimensional stability and mechanical integrity.

2. Thermal Management: If your design involves components that generate significant heat, such as power electronics or high-power devices, the IT-150DA substrate’s excellent thermal stability can help dissipate heat effectively. Consider the substrate’s thermal conductivity and its compatibility with your chosen heat dissipation methods, such as heat sinks or thermal vias.

3. Electrical Performance: Evaluate the electrical properties of the IT-150DA substrate, such as dielectric constant, loss tangent, and impedance control. These factors impact signal integrity, especially in high-speed or high-frequency applications. Ensure that the substrate’s electrical performance meets the requirements of your design.

4. Mechanical Strength: The IT-150DA substrate’s mechanical strength is crucial for maintaining the structural integrity of your PCB. Consider the substrate’s flexural strength, tensile strength, and resistance to warping or delamination. These properties are important, particularly if your design will undergo mechanical stress or if it requires reliability in harsh environments.

5. Manufacturing Compatibility: Ensure that the IT-150DA substrate is compatible with your chosen manufacturing processes, including soldering methods and assembly techniques. Verify its compatibility with lead-free soldering processes if required.

6. Cost Considerations: Evaluate the cost-effectiveness of the IT-150DA substrate for your specific application. Compare its price with other high TG substrates and consider the overall benefits it provides in terms of thermal performance, reliability, and electrical properties.

By considering these factors, you can make an informed decision about whether the ITEQ IT-150DA high TG PCB substrate is the right choice for your specific PCB design requirements.

Applications of ITEQ IT-150DA

The ITEQ IT-150DA high TG PCB substrate is suitable for various applications that require high thermal stability, excellent electrical performance, and mechanical strength. Some common applications of ITEQ IT-150DA include:

1.Power Electronics:

The IT-150DA substrate’s high glass transition temperature and thermal stability make it well-suited for power electronic applications. It can handle high operating temperatures and efficiently dissipate heat generated by power devices, such as power transistors, MOSFETs, or IGBTs.

2.Automotive Electronics:

The automotive industry often requires PCBs that can withstand extreme temperatures and harsh environments. The IT-150DA substrate’s high TG and mechanical strength make it suitable for automotive applications, including engine control units, transmission control modules, and other automotive electronics that operate in demanding conditions.

3.Aerospace and Defense:

The IT-150DA substrate’s reliability and resistance to high temperatures make it suitable for aerospace and defense applications. It can be used in avionics systems, radar systems, communication equipment, and other electronics that need to perform reliably in extreme temperatures and harsh environments.

4.Industrial Electronics:

The IT-150DA substrate’s thermal stability and mechanical strength make it a good choice for industrial electronics applications. It can be used in motor drives, industrial control systems, robotics, and other equipment that requires high-performance PCBs capable of withstanding challenging operating conditions.

5.High-Frequency Applications:

The IT-150DA substrate’s excellent electrical properties, including low loss tangent and controlled impedance, make it suitable for high-frequency applications. It can be used in telecommunications equipment, wireless communication devices, RF amplifiers, and other high-frequency electronic systems.

6.LED Lighting:

The IT-150DA substrate’s thermal management capabilities and high TG make it suitable for LED lighting applications. It can handle the heat generated by high-power LEDs and provide a stable platform for mounting LED modules.

These are just a few examples of the applications where ITEQ IT-150DA can be utilized. Its combination of thermal stability, electrical performance, and mechanical strength makes it a versatile choice for various industries that require high-quality PCB substrates.


As technology advances and the need for reliable electronics in demanding conditions grows, the ITEQ IT-150DA high TG PCB substrate stands as a vital component in the realm of high-temperature PCB designs. Its ability to endure elevated temperatures, coupled with outstanding electrical performance and mechanical strength, makes it a preferred choice for applications in power electronics, automotive, aerospace, industrial electronics, high-frequency systems, and LED lighting. With ITEQ IT-150DA, designers can confidently push the boundaries of thermal management and create innovative solutions that thrive in even the harshest environments. Embrace the power of ITEQ IT-150DA and unlock new possibilities in high-temperature PCB designs.

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