In the world of PCBs (Printed Circuit Boards), FR-4 board is undoubtedly one of the most widely used basic materials. Today, let’s discuss in detail the characteristics, brands, excellent flame retardant performance and high temperature resistance of FR-4 board.
Characteristics of FR-4 board
FR-4 is a composite material composed of glass fiber cloth and epoxy resin. It has the following remarkable characteristics:
Good electrical insulation performance: It can effectively prevent short circuits and leakage between circuits and ensure the stable operation of electronic devices.
High mechanical strength: It can withstand the stress during the installation and soldering of electronic components and is not easily deformed or damaged.
Excellent processing performance: It can be processed by cutting, drilling, etching and other processes to meet different design requirements.
Relatively low cost: Compared with other high-performance PCB materials, FR-4 board is more affordable, making it widely used in many electronic devices.
Well-known FR-4 board brands
At present, there are many well-known FR-4 board brands on the market, and each brand has its unique advantages and characteristics. Here are some highly respected brands:
Shengyi Technology: As a leading PCB material manufacturer in China, Shengyi Technology’s FR-4 board is known for its stable quality and good performance. The products cover different specifications and performance levels and can meet the needs of various electronic devices.
Kingboard Laminates: Kingboard Laminates is a world-renowned electronic material manufacturer. Its FR-4 board has high popularity and market share in both domestic and international markets. The products have excellent electrical performance and mechanical strength and are widely used in communication, computer, consumer electronics and other fields.
Nan Ya Plastics: Nan Ya Plastics’ FR-4 board is favored by users for its good flame retardant performance and high temperature resistance. The product quality is reliable and the price is reasonable. It is one of the first choices of many electronic device manufacturers.
Flame retardant performance of FR-4 board
The flame retardant performance of FR-4 board is one of its important characteristics. It can usually reach the flame retardant standard of UL94 V-0 level, which means that under the specified test conditions, the board can self-extinguish within a certain time without producing open flames and dripping substances, thus effectively preventing the occurrence and spread of fire.
The flame retardant performance of FR-4 board is mainly due to the special formula of its epoxy resin and the reinforcing effect of glass fiber cloth. Flame retardants are added to the epoxy resin, which can decompose to produce non-flammable gases at high temperatures and dilute the concentration of flammable gases to achieve the purpose of flame retardancy. The glass fiber cloth plays a role in enhancing the mechanical strength and heat insulation of the board, further improving the flame retardant performance of the board.
High temperature resistance characteristics of FR-4 board
FR-4 board has good high temperature resistance characteristics and can maintain stable performance within a certain temperature range. Generally speaking, the long-term service temperature of FR-4 board can reach about 130°C, and the short-term service temperature can even reach more than 200°C.
The high temperature resistance characteristics of FR-4 board mainly depend on the thermal stability of its epoxy resin and the high temperature resistance performance of glass fiber cloth. Epoxy resin can maintain good mechanical strength and electrical insulation performance at high temperatures and is not easily softened and decomposed. Glass fiber cloth has a high melting point and heat resistance and can maintain a stable structure and performance at high temperatures.
Summary
In summary, as a widely used PCB basic material, FR-4 board has good electrical insulation performance, high mechanical strength, excellent processing performance and relatively low cost. At the same time, it also has excellent flame retardant performance and high temperature resistance characteristics, which can meet the safety and performance requirements of various electronic devices. When choosing FR-4 board, we can choose products of well-known brands according to our own needs and budgets to ensure stable quality and performance.