Panasonic MEGTRON 7 is an advanced ultra-low loss and highly heat-resistant multilayer PCB material designed for next-generation high-speed communication equipment. With its ultra-low dielectric constant (Dk) and dissipation factor (Df), MEGTRON 7 delivers exceptional signal integrity for large data volumes and high-speed transmission required in 5G base stations, servers, routers, and high-performance computing systems.
The MEGTRON 7 family includes:
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MEGTRON 7 (N)
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MEGTRON 7 (GE) — E-glass type
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MEGTRON 7 (GN) — Low-Dk glass type
These laminates are optimized for High Density Interconnect (HDI) technology, supporting very high layer counts and large-format PCB layouts.
Key Features and Benefits
Ultra-Low Transmission Loss — Dk as low as 3.2 and Df as low as 0.001 @1GHz
High Heat Resistance — Glass transition temperature (Tg) above 200°C ensures excellent thermal reliability
Stable Electrical Performance — Consistent Dk/Df across frequencies up to 60GHz
Low CTE and High Dimensional Stability — Excellent for multilayer HDI PCBs
Compatible with Lead-Free and High-Temperature Processes
UL 94V-0 Flammability Certified
Technical Specifications
Thermal Properties
| Property | Unit | Test Method | Typical Value |
|---|---|---|---|
| Tg (DSC) | °C | IPC TM-650 2.4.24 | 200 |
| Tg (TMA) | °C | IPC TM-650 2.4.24 | 190 |
| Thermal Decomposition (Td) | °C | TGA | 400 |
| Time to Delam (T288, with Cu) | Min | IPC TM-650 2.4.24.1 | >120 |
| CTE (X/Y below Tg) | ppm/°C | IPC TM-650 2.4.24 | 14–16 |
| CTE (Z above Tg) | ppm/°C | IPC TM-650 2.4.24 | 280 |
Electrical Properties
| Property | Frequency | Unit | Typical Value |
|---|---|---|---|
| Dielectric Constant (Dk) | 1GHz | — | 3.63 (GE), 3.37 (GN) |
| 14GHz | — | 3.31 (GN) | |
| Dissipation Factor (Df) | 1GHz | — | 0.002 (GE), 0.001 (GN) |
| 14GHz | — | 0.0023 (GN) | |
| Volume Resistivity | — | MΩ·cm | 1×10⁹ |
| Surface Resistivity | — | MΩ | 1×10⁸ |
These properties ensure minimal signal loss, excellent impedance control, and stable high-frequency performance even beyond 50GHz.
Physical Properties
| Property | Unit | Test Method | Typical Value |
|---|---|---|---|
| Water Absorption | % | IPC TM-650 2.6.2.1 | 0.06 |
| Peel Strength (1oz Cu, H-VLP2) | kN/m | IPC TM-650 2.4.8 | 0.8 |
| Flammability | — | UL 94 | V-0 |
Performance at High Frequencies
MEGTRON 7 maintains consistent dielectric properties over a wide frequency range, making it ideal for 5G millimeter-wave systems and high-speed digital interconnects.
| Frequency (GHz) | Typical Dk (GE Type) | Typical Df (GE Type) | Typical Dk (GN Type) | Typical Df (GN Type) |
|---|---|---|---|---|
| 1 | 3.63 | 0.002 | 3.21 | 0.001 |
| 14 | 3.31 | 0.0023 | 3.15 | 0.0021 |
| 25 | 3.31 | 0.0030 | 3.15 | 0.0023 |
| 47 | 3.31 | 0.0038 | 3.15 | 0.0028 |
| 59 | 3.31 | 0.0041 | 3.15 | 0.0030 |
This ultra-low loss performance ensures clean signal transmission, reduced skew, and improved signal integrity at multi-gigabit speeds.
Applications
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5G Communication Infrastructure (Base Stations, Small Cells)
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Data Centers & Cloud Servers
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High-Speed Routers & Switches
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AI Accelerators & HPC Boards
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Automotive Radar & ADAS Systems
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RF Modules and Backplanes
Available Configurations
| Product | Type | Glass | Dk | Df | Tg (°C) |
|---|---|---|---|---|---|
| R-5785(GE) | Laminate | E-glass | 3.63 | 0.002 | 200 |
| R-5785(GN) | Laminate | Low-Dk Glass | 3.21 | 0.001 | 200 |
| R-5680(GE) | Prepreg | E-glass | 3.63 | 0.002 | 200 |
| R-5680(GN) | Prepreg | Low-Dk Glass | 3.21 | 0.001 | 200 |
Why Choose MEGTRON 7?
Compared to conventional FR-4 and mid-tier low-loss materials, MEGTRON 7 provides significantly reduced insertion loss and greater reliability under reflow conditions. It is the material of choice for OEMs and PCB manufacturers targeting next-generation 5G, AI, and data transmission technologies.
Conclusion
MEGTRON 7 represents the pinnacle of Panasonic’s high-speed material technology, engineered for ultra-high frequency stability, low loss, and robust thermal reliability. For PCB designers and manufacturers pushing the boundaries of 5G, 112Gbps PAM4, or high-speed backplane designs, MEGTRON 7 offers the perfect combination of performance and reliability.
Panasonic Megtron 7 N Datasheet
