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Why is the Panasonic R-F705S Useful for Mobile and Automotive Products?

Having a material with high frequency has a lot to offer in PCB engineering. This type of material also plays a huge role in mobile and wireless devices.

The importance of using the right PCB material is very necessary. Using the wrong type of material will only mess up the final product. Also, you will not get the desired quality. One material that has high frequency and great for large-volume devices is the Panasonic R-F705S.

If you wish to understand what this material offers, please stay on this page. We will discuss what this material is, what its properties are, and the various things you need to consider before using this material.

What is the Panasonic R-F705S?

The Panasonic R-F705S is a top-quality PCB material, which is useful for large-volume transmission of data of mobile devices. Furthermore, this material has a high frequency and it is also great for replacing small coaxial cable and radar antenna of millimeter wave.

This material for flexible circuit boards is great for both wireless and mobile products. This is why it is useful in automotive components, 4K/8K display (which refers to the FPC cable of high speed), tablet PC, and smartphones.

To understand what this material offers, let us consider the properties of this material

What are the Properties of the Panasonic R-F705S?

The properties of the Panasonic R-F705S include the following.

Dielectric Constant

The Panasonic R-F705S has a dielectric constant of 2.9 and 3.3 at 14 GHz and 10 GHz respectively. The method used at 14 GHz is the circular disk balanced-type resonance, while the method used for the 10 GHz is the cavity resonance. This property measures a material’s ability to store some electrical energy in a given electric field.

Dissipation Factor

The Panasonic R-F705S has a dielectric constant of 0.002 at both 14 GHz and 10 GHz. The method used at 14 GHz is the circular disk balanced-type resonance, while the method used for the 10 GHz is the cavity resonance. This value indicates the Panasonic R-F705SPCB material’s efficiency to act like an insulator. Furthermore, the Panasonic R-F705S PCB material has a low dissipation factor, which means that it is very efficient as an insulating material.

Surface Resistivity

The surface resistivity of the Panasonic R-F705SPCB Material under the test method JIS C 6471 has a value of 4 x 1010 MΩ. This value for surface resistivity has to do with the measure of the insulation or electrical resistance of this PCB material. This is how long this insulating material can resist the leakage of current.

Water Absorption

Using the internal method, the value for water absorption of the Panasonic R-F705S is 0.04%. This value is great being that when a PCB material absorbs water and moisture, it can lead to different failure mechanisms. When used in printed circuit boards it means it has the ability to prevent water or moisture from finding its way in, thereby causing the device to stop working.

Peel Strength

The peel strength of the Panasonic R-F705S is 0.8 N/mm. A material’s peel strength has to do with the material’s bond strength. To know the peel strength, a peel test is conducted. Here you pull the materials apart at a constant speed. Now, this average force necessary to pull this material apart is then used with the bond’s width measurement which determines the peel strength.

Chemical resistance

This material has no abnormality when it comes to chemical resistance. This property has to do with the ability of the Panasonic R-F705S to protect itself against a solvent reaction or chemical attack.

Dimensional stability

The test method used for the Panasonic R-F705S is the IPC-TM-650 2.2.4. After etching MD, it has a value of 0.008%. For the after etching TD method, it has a value of 0.007%. Furthermore, for the after E-0.5/150 MD, it has a value of 0.052%. Lastly, after E-0.5/150 TD, it has a value of 0.035%.

A material’s dimensional stability has to do with the material’s physical property which represents its ability to maintain its initial structural integrity and boundaries while using it for a specific application.

Flammability

The flammability of the Panasonic R-F705S is rated UL 94VTM-0. This specific test method is useful for materials which are very flexible or may flex, shrink, or distort when vertical testing is done.

Tensile Modulus

The tensile modulus of the Panasonic R-F705S is 3.5 GPa. This is well known as a mechanical property, which measures the stiffness of the material. This measures the ratio of the stress to the strain during elastic deformation.

Things to Consider Before Choosing the Panasonic R-F705S

After seeing these great properties, you may decide to choose the Panasonic R-F705S for your PCB needs. However, before you decide to use this material, there are some things you should consider. These include the temperature performance, operational environment, the space, as well as the cost.

Temperature Performance

Before you choose the Panasonic R-F705S, you must consider its temperature performance. You need to consider how much the Dk of this material changes with temperature. Also, this factor is very important when designing PCBs for hotter environments.

Operational Environment

This should be one of the first factors you should consider before you choose this material. This operational environment has to do with moisture and temperature. You should only use this material if the PCB will not be made to work under extreme or harsh industrial environments.

Space

Before choosing the material, consider the space it will take. The Panasonic R-F705S will surely be useful as it works best for producing compact devices. It helps in saving space even when you use them for any large PCB project.

Conclusion

Here comes the end of our article on the Panasonic R-F705S PCB material. This is a top-quality PCB material, which is useful for large-volume high-speed transmission of data of mobile devices. Furthermore, this material has a high frequency and it is also great for replacing small coaxial cable and radar antenna of millimeter wave. After going through, you should know if this material is the best for you.