Standard and Classification of Insulating Board FR4
Insulation board FR4 Industry Association:
A material standard specified by NEMA American Electrical Manufacturers Association. The corresponding IEC International Electrotechnical Commission standard is epgc202. There is no corresponding standard in China.
The closest domestic standard is 3240 epoxy laminated glass cloth board, and the corresponding IEC International Electrotechnical Commission Standard of 3240 is epgc201, while epgc201 and epgc202 have only the difference of flame retardant performance. Therefore, it can be simply considered that FR-4 is an improved product with 3240 enhanced flame retardancy.
Insulation board FR4 classification
The surface color of FR-4 epoxy glass cloth laminate is as follows:
Yellow FR-4, white FR-4, black FR-4, blue FR-4, etc.
FR-4 is the base plate used for PCB, which is a kind of sheet material. According to different reinforcement materials, sheet metal is mainly classified into the following four categories:
1) FR-4: glass cloth base plate
2) FR-1, FR-2, etc.: paper substrate
3) CEM series: composite substrate
4) Special material base plate (ceramic, metal base, etc.) FR-4 is a plate-like laminated product made of special electronic cloth soaked with epoxy phenolic resin and other materials by high temperature and high pressure hot pressing.
Features: high mechanical and dielectric properties, good heat resistance and moisture resistance, and good machinability.
Application: used as insulation structural parts in motor and electrical equipment, including various types of switch FPC to reinforce electrical insulation carbon film printed circuit board, computer drilling pad mold jig (PCB test stand), etc., and can be used in humid environment and transformer oil.
Insulation board FR4 application
FR-4 epoxy glass fiber board (epoxy board), the main material is imported semi curing sheet, the color is white, yellow, green, and there is still high mechanical strength under 150 ℃ normal temperature, good electrical performance in dry and wet state, flame retardant, used for electrical, electronic and other industry insulation structure parts, using imported raw materials, domestic press and standard technology to carefully manufacture; the main specification is 1000 * 2000 mm 102 0mm * 1220mm, because of the advantages of raw materials, it ensures high quality and low price, timely delivery, has a solid customer base at home and abroad, and enjoys a high reputation.