Fiberglass epoxy boards are widely used in the electronics industry for making printed circuit boards (PCBs) and other mechanical supports due to their excellent electrical insulation and mechanical properties. Among the most common types of fiberglass epoxy boards are FR4 and FR5. This article aims to compare these two materials in terms of their properties and applications.<\/p>\n
Comparison Table<\/strong><\/p>\n Composition and Manufacturing<\/strong><\/p>\n Both FR4 and FR5 are made of woven fiberglass cloth impregnated with epoxy resin. However, FR5 uses a higher grade of resin that provides better thermal and mechanical properties. FR4 boards are suitable for applications with a maximum temperature of around 130\u00b0C. FR5, on the other hand, can withstand temperatures up to 180\u00b0C, making it a better choice for high-temperature environments.<\/p>\n\n\n
\n Property<\/td>\n FR4<\/td>\n FR5<\/td>\n<\/tr>\n \n Composition<\/td>\n Woven fiberglass cloth with epoxy resin<\/td>\n Woven fiberglass cloth with epoxy resin, higher grade<\/td>\n<\/tr>\n \n Thermal Resistance<\/td>\n Good (up to 130\u00b0C)<\/td>\n Better (up to 180\u00b0C)<\/td>\n<\/tr>\n \n Mechanical Strength<\/td>\n High<\/td>\n Higher than FR4<\/td>\n<\/tr>\n \n Moisture Absorption<\/td>\n Moderate<\/td>\n Lower than FR4<\/td>\n<\/tr>\n \n Flame Resistance<\/td>\n UL 94V-0 rating<\/td>\n UL 94V-0 rating, better performance<\/td>\n<\/tr>\n \n Cost<\/td>\n Lower<\/td>\n Higher<\/td>\n<\/tr>\n \n Applications<\/td>\n Consumer electronics, automotive<\/td>\n High-temperature environments, military, aerospace<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<\/div>\n
\nThermal Resistance<\/p>\n