Difference Between FR-4 Material and Rogers Material

1. FR-4 material is cheaper than Rogers material

2. Rogers material has high frequency compared to FR-4 material.

3. The Df or dissipation factor of the FR-4 material is higher than that of the Rogers material, and the signal loss is greater.

4. In terms of impedance stability, the Dk value range of Rogers material is larger than that of FR-4 material.

5. For dielectric constant, the Dk of FR-4 is about 4.5, which is lower than the Dk of Rogers material (about 6.15 to 11).

6. In terms of temperature management, Rogers material changes less compared to FR-4 material

 

Why use Rogers PCB materials?

FR-4 materials provide the basic standard for PCB substrates, maintaining a broad and effective balance between cost, durability, performance, manufacturability, and electrical properties. However, since performance and electrical properties play an important role in your design, Rogers materials offer the following benefits:

1. Low electrical signal loss

2. Cost-effective PCB manufacturing

3. Low dielectric loss

4. Better thermal management

5. Wide range of Dk (dielectric constant) values ​​(2.55-10.2)

6. Low outgassing in aerospace applications

7. Improve impedance control