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IT-170GT laminates have emerged as a standout choice for engineers and manufacturers seeking cutting-edge solutions for complex applications. In this article, we’ll discuss what really characterizes the IT-170GT laminates. The relevant information is available for pcb design engineers to refer to in the selection of materials, And you can also call QFPCB to discuss. QFPCB offers the best services when it comes to the high Tg circuit board, so please feel free to contact us.
What is the IT-170GT PCB Material?
The high Tg of 185°C (DSC) IT-170GT PCB material which is known for its elevated glass transition temperature (Tg). IT-170GT cooperation produces laminates with dielectric constant as low as 3.9 and as high as 4.0, the laminates also have diverse ranges loss tangent, from standard loss to ultra-low loss. IT-170GT laminates have excellent thermal reliability, low CTE, and high CAF resistance, making them superior laminates for fabricating multi-layer boards. The laminates also exhibit stable mechanical properties over a wide range of dielectric constant and temperature, making them ideal for multi-layer constructions. These properties also enable you to construct hybrid multi-layer boards using diverse types of IT-170GT laminates.
You should select products with high decomposition temperature when you use the material in environments with high operating temperatures. Choose a laminate with a CTE close to copper claddings’ CTE, interior thermal planes, and surface mounted devices to avoid expansion related problems. A laminate’s thermal conductivity defines its heat-conductive properties and directly influences the heat transfer properties of the PCB. The thermal conductive of the IT-170GT laminate you choose should be high enough to avoid heat accumulation on the surface-mounted devices. IT-170GT laminates are RoHS compliant. In attempts to achieve the above policies, IT-170GT laminates are fabricated using lead-free processing techniques for optimal management of harmful substances.
IT-170GT PCB Material Data Sheet
Features of the IT-170GT PCB Material
Halogen-Free Material
IT-170GT is formulated without halogenated flame retardants, aligning with global environmental and safety regulations. T-170GT eliminates harmful halogens (e.g., chlorine, bromine), making it a safer choice for both production and end-use applications.
Dielectric Constant (Dk)
With a dielectric constant (around 4.0 @ 1 GHz), The Dielectric Constant (Dk) of the material is a measure of its ability to store electrical energy in a capacitor-like manner. IT-170GT laminates offer a stable Dk, this property measures a material’s ability to store some electrical energy in a given electric field.
Dissipation Factor (Df)
With a dissipation factor (0.0085 @ 1 GHz) translates to reduced dielectric loss, ensuring minimal heat generation during signal transmission, which is crucial for applications that require efficient performance in thermally challenging environments.
High Glass Transition Temperature (Tg)
With a Tg exceeding 180°C, this material maintains structural integrity at elevated temperatures, ensuring reliability in high-heat environments. This Tg value helps to determine the limit of temperature operation.
Good in anti-CAF performance
The IT-170GT PCB material also has excellent anti-CAF performance. The laminate’s chemistry and controlled glass treatment provide excellent resistance to CAF, reducing the risk of dendritic growths that can cause shorts in high-humidity or high-bias conditions.
Low CTE & High Thermal Reliability
A low coefficient of thermal expansion (CTE) reduces the risk of delamination or warping during thermal cycling, while its robust thermal reliability supports long-term operation in harsh conditions. IT-170GT features great thermal reliability. Therefore, this laminate is ideal for use in varying temperature ranges.
ANSI Type FR-15.1 Compliance
IT-170GT is classified as FR-15.1. This designation confirms its suitability for demanding electrical and thermal loads, providing designers with confidence in material consistency and performance. Meets stringent flame-retardant standards without compromising environmental goals.
What are the Applications of IT-170GT PCB Material?
IT-170GT’s combination of electrical performance and reliability makes it an ideal substrate for a variety of advanced electronic systems, including:
Base Stations
High-frequency RF modules and power amplifiers require laminates with stable dielectric properties to maintain signal integrity across wide bandwidths. Withstands high-power RF signals and thermal stress in 5G and legacy communication systems.
Telecom Equipment
For telecommunications backbone systems such as switches, routers, and fiber optic modules, reliable PCB materials are essential. IT-170GT delivers the low Dk/Df values and high thermal endurance needed for stable, high speed data transmission.
Backplanes
Complex multi-layer backplane PCBs in data centers demand materials with tight impedance control and excellent thermal management. Delivers stable signal integrity for high-speed data transmission in networking hardware.
Servers (Storage & Switch & Routers)
In enterprise networking equipment such as routers and switches, signal integrity and thermal management are critical. Supports high-density interconnects and thermal management in data center environments. Motherboards, add-in cards, and storage controller boards operate at elevated temperatures and require halogen-free, thermally robust laminates to ensure system uptime.
Manufacturing and Processing Advantages of IT-170GT PCB Material
IT-170GT laminates simplify manufacturing while meeting modern sustainability goals, Combining high thermal reliability, signal integrity, and environmental responsibility, IT-170GT laminates are a future-proof choice for next-generation electronics.
Maximum Operating Temperature: 150 °C
IT-170GT sustains continuous operation at up to 150 °C without significant degradation of electrical or mechanical properties. This capability is essential for high-density server environments and outdoor telecom installations.
Compatibility with High Tg Standard FR-4 Processes
Manufacturers can integrate IT-170GT into existing FR-4 production lines with minimal process adjustments. Standard lamination pressures, cure profiles, and drill parameters are compatible, facilitating rapid ramp-up and cost-effective scaling.
Environmentally Friendly Materials
Beyond its halogen-free formulation, IT-170GT utilizes lead-free glass fabric and non-halogenated curing agents. The material supports RoHS and REACH compliance, helping customers meet stringent environmental directives across global markets.
Conclusion
IT-170GT provides the foundation for reliable, high-efficiency electronic systems that can withstand the most demanding operational environments. For more information about ITEQ IT-170GT laminates or to discuss how this material can support your specific application, feel free reach out to us directly.
