Multilayer 94V0 FR4 PCB

A multilayer 94V0 FR4 PCB refers to a printed circuit board (PCB) that is constructed using multiple layers of FR4

substrate material and has a flame-retardant rating of 94V0.

"Multilayer" indicates that the PCB consists of more than two layers of FR4 material, with copper conductive traces

sandwiched between them. The number of layers can vary depending on the complexity of the circuit design and the

requirements of the application. Multilayer PCBs allow for denser circuit designs and enable the integration of

more components within a smaller footprint.

"94V0" is a flammability rating that indicates the PCB's fire resistance. The "94" represents the UL94 flammability

standard, and "V0" is the highest rating within this standard. A 94V0 rating means that the PCB material is self-

extinguishing and has a low tendency to propagate flames.

FR4 is a commonly used substrate material for PCBs due to its excellent electrical insulation properties,

mechanical strength, and flame-retardant characteristics. It is made of a woven fiberglass cloth impregnated with a

flame-retardant epoxy resin.

Overall, a multilayer 94V0 FR4 PCB combines the benefits of multilayer construction for complex circuitry and the

flame-retardant properties of the FR4 material, making it suitable for applications that require both electrical

performance and safety compliance.