In general speaking, RJ 45 PCB is characterized by the thickness thin and small size, Whatever hundred trillion or gigabit products, the thickness of the finished PCB in 0.6mm or 0.8mm.
After so many years of development of the RJ45 product, the size of the design also has a lot of special outline drawing. Because of the RJ 45 is small size, thin, assembly process is long, the unit price is cheap, in order to improve the quality of the assembly period yield and production efficiency, need to do special control in the production process of PCB board.
RJ45PCB components BOM quantity is less, megabyte products generally for a resistance a capacitor, even if encounter complex design products, general BOM components types is not more than 10 kinds. Than SMT production line require the more PCB panel size and quantity, the better.
Another key PCB production process that needs to be controlled is V-CUT, Because the RJ45 PCB is thin and small, Especially after the SMT line, the need to split the board is easy, Prevent damage to the components.
For example, RJ45 board thickness of 0.6mm. According to the standard of the IPC CLASS2, The residual thickness of the V-CUT is the 0.2mm+/-0.1mm, The upper limit is 0.3mm. According to my experience, If the residual thickness is above 0.25mm, Customers in the assembly process will generally reflect the board is not good board.Generally need to be controlled below 0.25mm, Moreover, the knife uniformity of V-CUT has requirements, If one side is deep and one side is shallow in the V-cut production process, Even if the residual thickness is below 0.25mm, Also prone to the problem of PCB.
Customer orders of RJ 45 products is more and more disperse,the unit price, MOQ and many factors that require special control in the production process, so many PCB manufacturers have basically passively given up this market. Similar products including HDIM, Type-C, electric toothbrush and so on are facing the same situation.
Please feel free contact us, If you also face the similar situation.
