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Why PCB is Green
2023-04-11
why PCB is greenWhat is the color of the PCB board? As the name suggests, when you get a PCB board, you can most intuitively see the color similar to the paint on the board, which we generally refer to as the color of the PCB board. Common colors are green, blue, and red. , white and black, etc. Below JBpcb shares, its understanding of different colors. Solder resists ink as an insulating coating, which can effectively protect the PCB board and prevent any short circuits and leakage, thereby protecting the life of the PCB board.Green solder resists ink is the most common, it is used to protect the PCB, and can also suppress electromagnetic interference; green solder resist ink printed on the circuit layer can more clearly see the open and short circuits of the circuit, which is convenient for visual inspection of the PCB, and in addition to the SMT paste when filming, accurate positioning plays an important role in applying solder paste. Some instruments are more strict in color recognition, and it is more beneficial to use green, which greatly facilitates production. Green is used as the background color of the circuit board, which can reduce the damage of strong light to human eyes, so the green effect is relatively prominent, which is the favorite color of the manufacturer. Blue solder resists ink is a high-temperature-resistant coating, which can effectively reduce the temperature of the PCB board and prevent damage to the PCB board. It is generally used in advanced electronic products; black solder resists ink is often used in industrial-grade products, which can resist heat, acid, and alkali; white solder resist ink is often used in lighting products, white solder resist ink can emit pure white light. When determining the reflectivity of the PCB itself, white PCB becomes one of the key components for lighting applications, with good thermal stability and corrosion resistance.The solder resists ink on the circuit board, which has an important impact on the performance of the circuit board. Generally speaking, the color of the PCB board needs to have good wear resistance, corrosion resistance, high-temperature resistance, low-temperature resistance, moisture resistance, and good electrical insulation and heat resistance. In addition, the color of the PCB board can also help suppress the electromagnetic wave interference of the circuit board, and improve its durability and reliability of the circuit board. Therefore, the color of the PCB board is an important part of the circuit board and has great significance.
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