Different PCB materials serve different needs, the more reason why the type of material you choose will have an overall effect on your project.
Panasonic has been known to deliver top-quality products, and their PCB materials are no exception. For this article, we will be focusing on the Panasonic R-1786. The Panasonic R-1786 is known as a bonding sheet that has high thermal conductivity and can serve different applications. This is for good reason.
In this article, we will help you learn what the Panasonic R-1786 is, its properties, and what you should consider before you decide to choose this material. If you really wish to gain much knowledge regarding this topic, please continue reading as we explain further.
What is the Panasonic R-1786?
The Panasonic R-1786 is a high-quality PCB material having lots of great features. These features include great tracking resistance, great insulation reliability, excellent accuracy of the board’s thickness, great high frequency properties.
This Panasonic R-1786 is known as the two-sided copper clad. The one-sided copper clad is known as the Panasonic R-1781. Furthermore, the Panasonic R-1786 works fine for digital home appliances. These include power conditioners, refrigerators, washing machines, circuit boards of antennas, etc.
Its main properties include its low dielectric constant or property, as well as its insulation reliability. To understand the topic better, let’s have a better understanding of what the properties of this material are.
What are the Properties the Panasonic R-1786?
Below are the properties of the Panasonic R-1786 PCB Material
Temperature of glass transition
Using the TMA test method, the Panasonic R-1786 has a glass transition temperature of 140 degrees Celsius. This temperature is known as that where thirty to fifty carbon chains begin to move. Furthermore, at this temperature this material experiences a transition from its rigid state to a state that is more flexible, thereby transforming the temperature of the material’s border.
For heat resistance, the Panasonic R-1786 has a value of 240 degrees Celsius. This is a well-known heat property, as well as the measurement of a difference in temperature whereby the Panasonic R-1786 resists a flow of heat. This property can be described as the inverse of thermal conductance.
Coefficient of Thermal Expansion
At the X and Y axis at α1, and using the TMA method, the Panasonic R-1786 has a CTE value of 25 ppm/℃ and 28 ppm/℃ respectively. Furthermore, at the Z-axis and α1, it has a CTE value of 65 ppm/℃. The coefficient of thermal expansion indicates how much a material can expand when it is heated.
The Panasonic R-1786 has a dielectric constant of 4.5 at 1 MHz. This property measures a material’s ability to store some electrical energy in a given electric field.
The dissipation factor of the Panasonic R-1786 PCB material is 0.015 at 1 MHz. This value indicates the Panasonic R-1786 PCB material’s efficiency to act like an insulator. Furthermore, the Panasonic R-1786 PCB material has a low dissipation factor, which means that it is very efficient as an insulating material.
The water absorption of the Panasonic R-1786 is 0.08%. 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.
At ½ oz, the peel strength of the Panasonic R-1786 is 1.47 kN/m. Furthermore, at 1 oz, the peel strength of the Panasonic R-1786 is 1.82 kN/m. 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.
Volume and Surface Resistivity
The volume resistivity of the Panasonic R-1786 PCB Material under the C-96/20/65 and C-96/20/65+ C-96/40/95 is 1 x 108 MΩ·m and 5 x 107 MΩ·m respectively. Furthermore, the surface resistivity of the Panasonic R-1786 PCB Material under the C-96/20/65 and C-96/20/65+ C-96/40/95 is 3 x 108 MΩ·m and 1 x 108 MΩ·m respectively.
What are the Factors to Consider when Choosing the Panasonic R-1786 PCB Material
Panasonic R-1786 is a PCB material with a low Dk. This is why you should consider some factors before going ahead to choose it. At times, the Dk value of the PCB material shouldn’t be the only factor to consider.
The operational environment has to be the first factor you should look into before choosing the Panasonic R-1786 PCB Material. Furthermore, the operational environment includes temperature and moisture. You shouldn’t use the Panasonic R-1786 if the printed circuit board will work under extreme industrial environments.
When choosing this PCB material, 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.
If space saving is a crucial consideration, Panasonic R-1786 is an ideal option. Also, this PCB material is ideal for manufacturing compact devices. It saves spaces even when used for larger PCB projects.
This is another factor to consider when choosing this material. The Panasonic R-1786 is a budget-friendly PCB material. Also, this material is commonly used due to its relatively low cost.
We hope that we have been able to enlighten you on what the Panasonic R-1786 is, as well as its properties. This material has great tracking resistance, great insulation reliability, excellent accuracy of the board’s thickness, and great high frequency properties. Its main properties include its low dielectric constant or property, as well as its insulation reliability. Also included in this article are some factors you need to consider before going ahead to buy the material. If there are any questions, please reach us here.