In today’s data driven world, the demand for high speed digital and high frequency electronics, reliable electronic infrastructure continues to grow. Nanya NPG-186 High Tg laminates stand at the forefront of this evolution, offering a robust solution for the most demanding applications in data centers, telecommunications, and enterprise infrastructure.
In this article, we’ll discuss what really characterizes the NPG-186 laminate. 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 frequency circuit board, so please feel free to contact us.

What is The NPG-186 PCB Material?
NPG-186 laminate have a glass transition temperature (Tg) of 210°C (DMA),making it ideal for high thermal reliability environments. This material is also halogen and antimony free, aligning with global environmental directives and providing a safer, eco-friendly alternative to conventional laminates.
Key electrical properties such as a low dielectric constant (DK 3.66 @10GHz) and very low dissipation factor (DF 0.005 @10GHz) at high frequencies make NPG-186 an excellent choice for high frequency circuits applications. Furthermore, NPG-186 exhibits low coefficient of thermal expansion (CTE), ensuring mechanical stability even under thermal cycling conditions.
With a UL 94V-0 flammability rating, this laminate meets stringent safety standards, adding another layer of confidence for engineers designing mission critical systems. Engineered for high reliability applications, the laminate is perfectly suited for server, storage, router and switch, the superior thermal and electrical characteristics of NPG-186 allow for consistent performance across diverse networking and computing environments.
NPG-186R PCB Material Data Sheet

Features of The NPG-186 PCB Material
High Glass Transition Temperature (Tg 210°C)
The NPG-186 provides a minimum Tg of 210°C, ensuring superior dimensional and mechanical stability under high thermal loads, making it ideal for use in lead free soldering and high temperature reflow processes.
Dielectric Constant (Dk)
With a dielectric constant (DK 3.66 @10GHz), aminate maintains excellent dielectric stability across frequency and temperature ranges, which is essential for maintaining impedance control and minimizing signal distortion in high frequency circuits.
Dissipation Factor (Df)
With a dissipation factor (DF 0.005 @10GHz) translates to reduced dielectric loss, the material exhibits a very low Df value, reduces transmission losses, enabling reliable performance at high data rates. Exceptionally low, minimizing signal loss and ensuring high fidelity for high frequency signal transmission.
Halogen and Antimony Free
Designed with environmental responsibility in mind, the NPG-186 is halogen free and antimony free. This formulation meets stringent global environmental standards (such as IEC 61249-2-21), reducing the release of corrosive and toxic gases during combustion, enhancing safety, and supporting sustainable manufacturing practices.
Low Coefficient of Thermal Expansion (CTE)
The laminate exhibits a low CTE, particularly in the Z-axis. This minimizes thermal stress on plated through holes (PTHs) during thermal cycling, significantly reducing the risk of PTH barrel cracking and ensuring long term reliability of the PCB interconnects.
Flammability Rating: UL 94V-0
For critical safety compliance, NPG-186 achieves the UL 94V-0 flammability rating, the highest level for vertical burning tests. This indicates excellent flame resistance, self extinguishing properties, and minimal dripping, making it suitable for applications where fire safety is paramount.
What are The Applications of NPG-186 PCB Material?
NPG-186 is suitable for a broad range of industries that demand high reliability and performance:
Server
In high performance computing and data center servers, where processing power and data density are constantly increasing, the laminate provides the thermal resilience and low loss electrical performance needed for stable and efficient operation under heavy computational loads.
Storage Systems
For enterprise storage solutions (SAN, NAS) requiring high speed data access and reliability, the NPG-186’s excellent signal integrity and dimensional stability ensure consistent performance and data integrity.
Routers and Switches
In high end networking equipment such as core routers and switches, which handle massive data traffic, the NPG-186’s very low Df and high Tg are essential for maintaining high speed signal transmission and system reliability across complex backplane and line card designs.
Manufacturing Advantages of NPG-186 PCB Material
Beyond its technical merits, NPG-186 offers several processing advantages that simplify manufacturing and reduce costs. The laminate features:
Very Low Dissipation Factor at High Frequencies
The laminate maintains its extremely low Df even at elevated frequencies, making it a superior choice for 5G infrastructure, high speed serial links (e.g., 20G+), and other high frequency circuits applications where minimizing signal attenuation is critical.
Excellent Dimensional Stability and Through-Hole Reliability
Engineered for precision, the laminate offers excellent dimensional stability throughout the manufacturing process, minimizing warpage and registration issues. Combined with its low Z-CTE, this ensures superior through hole reliability, a vital factor for high reliability, high layer count boards.
Compatibility with Existing Manufacturing Processes
Despite its high performance characteristics, the laminate is designed to be compatible with standard PCB fabrication processes. It can be processed using conventional equipment and techniques for lamination, drilling, and plating, facilitating a smooth transition and minimizing production risks.
Cost Effective and Readily Available
Compared to exotic high frequency materials, NPG-186 offers a compelling balance of ultra high performance and cost effectiveness. Its formulation leverages established manufacturing, ensuring good supply chain availability for volume production.
Ultimately, Nanya NPG-186 High Tg laminate represent a significant advancement in PCB material technology. This material can achieve unparalleled signal integrity, exceptional thermal reliability, and environmental compliance, all while benefiting from excellent manufacturability and cost effectiveness. By choosing this laminate, manufacturers can achieve superior performance, enhanced safety, and extended product lifetimes.
If you have any further questions, please feel free to leave a comment below or contact QFPCB by email ([email protected]).











