Panasonic R-1785 laminate series is designed for next-generation printed circuit boards that demand both electrical performance and manufacturing precision. The R-1785 laminate provides an ideal foundation for applications where reliability under high temperatures and voltages is critical.
In this article, we’ll discuss what really characterizes the Panasonic R-1785 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 CTI circuit board, so please feel free to contact us.
What is the Panasonic R-1785 Laminate?
Panasonic R-1785 PCB material offers a Tg value of 150 degrees Celsius, the glass transition temperature describes how a PCB material transforms from a solid state to a molten state. Panasonic R-1785 laminate is an efficient insulator due to its low Dk value. This material features a dielectric constant of 4.0 at 1 GHz. It has a dissipation factor of 0.010 at 1 GHz. The Panasonic R-1785 laminate is a high thermal conductivity glass composite PCB material that exhibits excellent electrical and mechanical properties.
The Panasonic laminate is a high-performance printed circuit board material characterized by numerous advantageous properties. Excellent tracking resistance (CTI ≥600V) and CAF resistance, the material resists electrical arcing and carbonization, enhancing safety in high-voltage systems. CTI measures the extent at which a PCB material can withstand the unwanted flow of current between traces on the circuit board. Its key attributes encompass a low dielectric constant, which enhances signal integrity, as well as robust insulation reliability.
Panasonic laminates are engineered to meet these evolving demands. Designed with a focus on high thermal resistance, low dielectric loss, and superior insulation properties, R-1785 laminate provides an ideal foundation for applications where reliability under high temperatures and voltages is critical.
Panasonic R-1785 Laminate Data Sheet
Features of the Panasonic R-1785 Laminate
Temperature of glass transition
Panasonic R-1785 features a glass transition temperature of 150 degree Celsius. this is a middle Tg value for a PCB material. Generally, the glass transition temperature of a material describes its mechanical stability.
Dielectric Constant (Dk)
Panasonic PCB material features a dielectric constant of 4.0 at 1 GHz. Therefore, this material exhibits weak polarization when exposed to an externally applied electric field. The dielectric constant is an important factor in determining how efficiently signals can propagate through the material.
Dissipation Factor (Df)
Panasonic PCB material has a dissipation factor of 0.010 at 1 GHz. offers a low dissipation factor. This low dissipation factor contributes to efficient power transmission and minimizes unwanted heat generation within the PCB.
High heat resistance
Panasonic R-1785 has a value of 260 degrees Celsius. This is a well-known heat property, as well as the measurement of a difference in temperature whereby the Panasonic R-1785 resists a flow of heat. The rate of heat transfer in a PCB material will determine its resistance to heat.
Insulation Reliability (CAF Resistance)
The laminate resist Conductive Anodic Filamentation (CAF), enhancing long-term reliability in humid or high-voltage conditions. The material demonstrates outstanding resistance to Conductive Anodic Filament formation, which helps prevent internal short circuits caused by moisture and voltage stress enhancing long-term reliability and safety.
Coefficient of Thermal Expansion
The coefficient of thermal expansion indicates how much a material can expand when it is heated. At the X and Y axis at α1, using the TMA method, the Panasonic laminate has a CTE value of 19 ppm/℃ and 21 ppm/℃ respectively. Furthermore, at the Z-axis and α1, it has a CTE value of 50 ppm/℃.
Excellent Tracking Resistance (CTI ≥ 600V)
Panasonic R-1785 PCB material has a CTI≥600, this property is very significant. This is because it offers a quantitative metric by which different materials can be compared. CTI measures the extent at which a PCB material can withstand the unwanted flow of current between traces on the circuit board.
What is the Application of Panasonic R-1785 Laminate?
The unique properties of R-1785 laminates make them suitable for a wide range of industries:
Automotive Components
The automotive industry is rapidly adopting advanced electronics for powertrain control, ADAS, and EV systems. R-1785 offers the thermal endurance, insulation reliability, and dimensional stability required for ECUs (Electronic Control Units), motor control boards, and battery management systems.
Power Supply Board
Power supply units must handle high current and voltage fluctuations while maintaining safe insulation distances. R-1785 supports DC/AC converters, switching power supplies, and charging systems, offering enhanced safety and operational stability.
Power Device Module Board
For IGBT modules, MOSFETs, and other high-power semiconductor devices, reliable substrate material is crucial. R-1785 delivers the dielectric strength and thermal resistance needed to ensure safe and efficient operation in industrial and automotive power modules.
Infrastructure (Smart Meter, IC Tag)
In smart grid and IoT infrastructure applications such as smart meters and IC tags, long-term reliability and environmental resistance are key. R-1785’s low moisture absorption, high CTI, and excellent insulation performance make it an ideal choice for these applications.
Manufacturing Advantages of Panasonic R-1785 laminate
Beyond its electrical and thermal merits, Panasonic R-1785 laminate offers significant manufacturing benefits:
Excellent workability
Panasonic laminate offers good drillability, routability, and etchability, making it easy to work with using standard PCB fabrication techniques. This results in higher throughput, reduced tool wear, and lower production costs. Compatible with standard PCB processes (laser drilling, etching, plating), reducing production costs and lead times.
Excellent board thickness accuracy
Tight thickness tolerances yield predictable impedance and layer planarity, reducing scrap and rework. The material ensures consistent thickness control during production, supporting precise design specifications and improving yield rates especially important for multilayer and HDI board manufacturing.
Ultimately,Panasonic laminates are a powerhouse material combining thermal resilience, electrical excellence, and manufacturing ease. For engineers and designers looking to ensure performance, reliability, and ease of manufacturing, R-1785 laminate is a proven choice that delivers results across the board.
If you have any further questions, please feel free to leave a comment below or contact QFPCB by email ([email protected]).
