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Properties of the Panasonic MEGTRON4 R-5725 Circuit Board Material

Panasonic is another reliable company known for the production of high-quality PCB materials. Choosing a high quality material for your circuit board like that of the Panasonic MEGTRON4 R-5725 is important because this determines how reliable and how best your PCB will perform.

Here, we will be talking about the Panasonic MEGTRON4 R-5725 Circuit Board Material as well as its close laminate Panasonic MEGTRON4 R-5725S. We will talk about what this material is, the properties of both, what differentiates them as well as the applications.

Please read on as we explain further

What is the Panasonic MEGTRON4 R-5725?

The Panasonic MEGTRON4 R-5725 is known for its low transmission loss multi-layer materials. They are suitable for large-volume high-speed data transmission of router and server.

It is mainly useful in antennas, measuring instruments, supercomputers, ICT infrastructure equipment and more. Furthermore, it has a high glass transition temperature and a low dissipation factor, which are great qualities to have as a PCB material.

The Panasonic MEGTRON4 R-5725 also exists as Panasonic MEGTRON4 R-5725S. Let’s go ahead with this article by writing on the properties of both.

What are the Properties of the Panasonic MEGTRON4 R-5725

The following are the properties of the Panasonic MEGTRON4 R-5725

Glass transition temperature (Tg)

Using the DSC test method, the Panasonic MEGTRON4 R-5725 PCB material has a Tg value of 176 degrees Celsius. Also, for TMA and DMA test methods, the Panasonic MEGTRON4 R-5725 PCB material has a value of 170 and 210 respectively.

While for the Panasonic MEGTRON4 R-5725 PCB material, it has a Tg value of 200 degrees Celsius Using the DSC test method. For the TMA and DMA test method, the Panasonic MEGTRON4 R-5725S PCB material has a value or 190 and 215 respectively

This is the temperature at which glass transition occurs and it is usually lower in contrast to the melting temperature of the material’s crystalline state. At this temperature, the Panasonic MEGTRON4 R-5725 PCB material transforms from its ductile look to one that is brittle and hard.

Coefficient of Thermal Expansion

At the Z-axis, the Panasonic MEGTRON4 R-5725 PCB material has a Coefficient of thermal expansion (CTE) value of 35 ppm/℃ at α1. While at α2, its CTE value is 265 ppm/℃.  Also, for the X axis, they have a CTE value at α1 to be 12 – 14 ppm/℃, while for the Y-axis, this material has a value at α1 to be 13 -15 ppm/℃.  

Furthermore, for the Panasonic MEGTRON4 R-5725S PCB material, the CTE z-axis has a value of 32 ppm/℃ at α1. While at α2, its CTE value is 250 ppm/℃. Also, for the X axis, they have a CTE value at α1 to be 12 – 14 ppm/℃, while for the Y-axis, this material has a value at α1 to be 13 -15 ppm/℃

This property indicates the extent at which a material can expand when it is heated.

Thermal decomposition

Both the Panasonic MEGTRON4 R-5725 PCB material and the Panasonic MEGTRON4 R-5725S PCB material have the same thermal decomposition, which is 360 degrees Celsius.

Delamination Time (T288)

The delamination time of the Panasonic MEGTRON4 R-5725 PCB material with copper is 30 minutes. This same value holds for the Panasonic MEGTRON4 R-5725S PCB material.

Note that delamination time has to do with the time required for the base material of a printed circuit board to delaminate anytime it is subjected to a 288 degrees Celsius temperature using TMA (Thermomechanical analyzer). Also, delamination refers to separating each of the layers.

Dielectric Constant (Dk)

The dielectric constant for both the Panasonic MEGTRON4 R-5725 PCB material and the Panasonic MEGTRON4 R-5725S PCB material is the same. At 10 GHz, they both have a dielectric constant of 3.8. Dielectric constant refers to the quantity that measures a material’s ability to store some electrical energy in a given electric field

Dissipation Factor (Df)

The dissipation factor for both the Panasonic MEGTRON4 R-5725 PCB material and the Panasonic MEGTRON4 R-5725S PCB material is the same. At 10 GHz, they both have a dissipation factor of 0.007.

This value indicates the material’s inefficiency to act like an insulator. Furthermore, this material has a low dissipation factor; therefore, it is very efficient as an insulating material.

Peel strength

The peel strength of the Panasonic MEGTRON4 R-5725 PCB material and the Panasonic MEGTRON4 R-5725S PCB material varies. For the Panasonic MEGTRON4 R-5725 PCB material, its peel strength is 1.1 kN/m, while for the Panasonic MEGTRON4 R-5725S PCB material, its peel strength is 1.3 kN/m. Generally, this value helps in measuring the material’s bond strength, most likely an adhesive.

Surface and Volume Resistivity

The surface resistivity and volume resistivity of the Panasonic MEGTRON4 R-5725 PCB material and the Panasonic MEGTRON4 R-5725S PCB material are the same. For surface resistivity, both materials have a value of 1 x 108 MΩ. For volume resistivity, both materials have a value of 1 x 109 MΩ – cm.

Water Absorption

For water absorption, both the Panasonic MEGTRON4 R-5725 PCB material and the Panasonic MEGTRON4 R-5725S PCB material have the same values. This stands at 0.14%. This has a low water absorption rate. This means that the material has what it takes to remain strong, and prevent water absorption.

Flammability

For flammability, both the Panasonic MEGTRON4 R-5725 PCB material and the Panasonic MEGTRON4 R-5725S PCB material have the same ratings. They are both rated 94V-0. This rating ensures that there is electrical safety and fire protection of the electronic components. 94V-0 means that the material has the ability to tolerate some exposure to flame without any ignition.

Applications of the Panasonic MEGTRON4 R-5725

The Panasonic MEGTRON4 R-5725 is applicable in the following areas

  • Antenna
  • Measuring Instrument
  • Supercomputer
  • ICT infrastructure equipment
  • And more…

Conclusion

Here comes the end of our article on the Panasonic MEGTRON4 R-5725 PCB material. They have very similar properties with the Panasonic MEGTRON4 R-5725S PCB material. Take your time to go through all the properties again to see if this suits your PCB needs. If you have further questions, we are always here to help out.