quick turn yellow soldermask pcb

What is FR4 pcb used for?

The FR in FR4 stands for flame retardant, and the number 4 distinguishes this material from other materials in this category. FR4 is a glass fiber reinforced epoxy laminate, which looks like a thin woven fabric board. The term FR4 also represents the grade used to make these laminates. The glass fiber structure provides structural stability to the material. The glass fiber layer is covered with flame-retardant epoxy resin. This brings durability and strong mechanical properties to the material. All these features make FR4 printed circuit boards very popular among electronic contract manufacturers.

FR4 printed circuit boards are also popular for the following reasons:

1.FR4 is a low-cost material.

2.It has a high dielectric strength, which contributes to its electrical insulation properties.

3.The material has a high strength-to-weight ratio and is light in weight.

4.It is moisture-proof and also has a relative temperature.

5.This material has good electrical loss performance.

6.FR4 does not absorb water, so it is also suitable for various marine PCB applications.

7.The material is yellow to light green, which is very suitable for any application.

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