In this article, we’ll discuss what really characterizes the high speed low loss DS-7409DV (N). The relevant information is available for pcb design engineers to refer to in the selection of materials. QFPCB offers the best services when it comes to the high speed low DK & DF PCB material, so please feel free to contact us.

What is the high-speed low loss DS-7409DV (N) laminate?
The DS-7409DV (N) is a high-speed, low-loss material commonly used in high-frequency and high-performance applications. DS-7409DV(N) features a glass transition high temperature of 180 degree Celsius. It is designed for minimal signal attenuation, making it ideal for communication systems, signal transmission, and data networking. Its low loss properties ensure that signals maintain their integrity over longer distances, contributing to more efficient and reliable performance in devices like antennas, microwave components, and high-speed digital circuits.
Moreover, the high-speed low loss DS-7409DV (N) finds application in various fields such as mobile phone, high-frequency measuring instruments, modules, high-speed networks, and computing equipment.
The features of the high-speed low loss DS-7409DV (N) data sheet

Performance and Processing Advantages
•High Tg and Low CTE
•Dielectric constant less than 4.0
•Dissipation factor less than 0.010
•Stable and flat Dk/Df performance
•Compatible with modified FR-4 processes
•Excellent reliability and heat resistance
•Low Dk&Df materials for high signal transmission speeds and signal integrity
Applications
•Mobile phone
•High-speed computing and networking equipment
•High frequency modular measurement equipment
•Enterprise/Carrier Router & Switch
Benefits of the high-speed low-loss DS-7409DV (N) laminate
Stable Dielectric Constant (Dk) and Low Dielectric Loss (Df)
The dielectric constant (Dk) is optimized and stable, typically around 3.0 to 3.35, ensuring predictable and consistent electrical performance. With a very low dielectric loss tangent (Df) of around 0.0010 to 0.0025, the DS-7409DV (N) minimizes signal attenuation. This is crucial for maintaining high signal integrity, especially in high-frequency and high-speed digital applications.
Good Thermal Conductivity
Efficient heat dissipation helps prevent overheating, improving the overall reliability and lifespan of the device. The material maintains its electrical properties over a wide temperature range, which is essential for reliable operation in varying environmental conditions.
Compatibility with Standard PCB Manufacturing Processes
The DS-7409DV (N) is compatible with standard PCB manufacturing processes, including drilling, plating, and etching, which simplifies production and reduces costs. The material is easy to work with, allowing for precise and consistent fabrication of complex designs.
Consistent Electrical Performance
The material’s stable electrical properties ensure consistent performance over time, even under harsh conditions. Suitable for Networks Equipment – Enterprise/Carrier Router & Switch, and other applications where reliability and performance under extreme conditions are critical.
RoHS Compliant
The material meets RoHS (Restriction of Hazardous Substances) standards, ensuring environmental safety and compliance with regulatory requirements.
What are the differences between the high-speed low loss DS-7409DV (N) and the Mid Loss DS-7409D (X) laminate?
The DS-7409DV (N) is optimized for high-speed, low-loss applications where signal integrity and performance are paramount. It is more expensive and may have longer lead times but offers superior electrical and thermal properties. On the other hand, the DS-7409D (X) is a more cost-effective solution with good performance, making it suitable for a wide range of mid-range applications where the highest performance is not critical.
Dielectric Loss (Df)
DS-7409DV (N): This material has a very low dielectric loss tangent (Df), typically around 0.001 to 0.0025. This low Df is crucial for minimizing signal attenuation and maintaining high signal integrity at high frequencies.
DS-7409D (X): This material has a higher dielectric loss tangent (Df), typically around 0.004 to 0.006. While it still offers good performance, it is not as optimal for very high-frequency applications as the DS-7409DV (N).
Dielectric Constant (Dk)
DS-7409DV (N): The dielectric constant (Dk) is optimized for high-speed applications, usually around 3.0 to 3.35. This ensures stable and predictable electrical performance, which is essential for high-frequency circuits.
DS-7409D (X): The dielectric constant (Dk) is slightly higher, typically around 3.74 to 3.83. This can affect the characteristic impedance and propagation delay, making it less ideal for the highest frequency applications but still suitable for many mid-range applications.
Thermal Performance
DS-7409DV (N): Offers better thermal stability and lower thermal expansion coefficients, which helps maintain consistent electrical properties over a wide temperature range.This is particularly important in high-reliability applications.
DS-7409D (X): While it also provides good thermal performance, it may not be as stable as the DS-7409DV (N) in extreme temperature conditions.
Mechanical Properties
DS-7409DV (N): Has high mechanical strength and durability, making it suitable for applications requiring robust and reliable substrates.
DS-7409D (X): Also offers good mechanical strength, but it may not be as high as that of the DS-7409DV (N).
Thermal Conductivity
DS-7409DV (N): Typically has better thermal conductivity,which aids in efficient heat dissipation and reduces the risk of overheating.
DS-7409D (X): Has moderate thermal conductivity, which is sufficient for many applications but may not be as effective in high-power or high-heat scenarios.
Ultimately,The DS-7409DV (N) is a high-performance material that combines low dielectric loss, Low dielectric constant, high thermal stability, and mechanical strength. Its versatility makes it suitable for a wide range of high-frequency and high-speed applications, ensuring reliable and efficient performance in demanding environments. This encompasses virtually all the pertinent information regarding the high-speed low loss DS-7409DV (N). Take ample time to peruse repeatedly in order to fully comprehend the offerings of this material.
If you have any further questions, please feel free to leave a comment below or contact QFPCB by email ([email protected]).











