{"id":355,"date":"2023-06-22T12:33:00","date_gmt":"2023-06-22T12:33:00","guid":{"rendered":"https:\/\/www.anzer-usa.com\/resources\/?p=355"},"modified":"2025-08-16T14:26:26","modified_gmt":"2025-08-16T14:26:26","slug":"pcb-material-called-fr-4","status":"publish","type":"post","link":"https:\/\/www.anzer-usa.com\/resources\/pcb-material-called-fr-4\/","title":{"rendered":"Q: What is PCB Material Called FR-4"},"content":{"rendered":"\n<p>A: PCB material called FR-4, or Flame Retardant 4, is a commonly used epoxy resin fiberglass laminate. It is made of a thin layer of epoxy resin and a woven fiberglass reinforcement material. The epoxy resin provides good electrical insulation properties, while the fiberglass reinforcement provides strength and stability to the laminate. FR-4 PCB material is used in various applications, including <a href=\"https:\/\/www.anzer-usa.com\/resources\/manufacture-bare-pcb\/\">printed circuit boards<\/a>, electrical insulation, and structural components in electronics.<\/p>\n\n\n\n<p>FR-4 is available in various thicknesses, with the most common being 0.8mm (.032&#8243;), 1.0mm (.040&#8243;), 1.6mm (.062&#8243;), and 2.0mm (.079&#8243;). These thicknesses are suitable for different applications based on mechanical strength and electrical properties.<\/p>\n","protected":false},"excerpt":{"rendered":"<p>A: PCB material called FR-4, or Flame Retardant 4, is a commonly used epoxy resin fiberglass laminate. It is made of a thin layer of epoxy resin and a woven fiberglass reinforcement material. The epoxy resin provides good electrical insulation properties, while the fiberglass reinforcement&#8230;<\/p>\n","protected":false},"author":1,"featured_media":2171,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"_jetpack_memberships_contains_paid_content":false,"footnotes":""},"categories":[56,170],"tags":[62,92,75,120],"class_list":["post-355","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-faq","category-pcb-assembly","tag-electronic-sub-assemblies","tag-ipc-standards","tag-pcb-assembly","tag-through-hole-assembly"],"jetpack_featured_media_url":"https:\/\/i0.wp.com\/www.anzer-usa.com\/resources\/wp-content\/uploads\/2024\/03\/Double-Sided-PCB-Cross-Section.jpg?fit=1200%2C600&ssl=1","jetpack_sharing_enabled":true,"_links":{"self":[{"href":"https:\/\/www.anzer-usa.com\/resources\/wp-json\/wp\/v2\/posts\/355","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.anzer-usa.com\/resources\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.anzer-usa.com\/resources\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.anzer-usa.com\/resources\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/www.anzer-usa.com\/resources\/wp-json\/wp\/v2\/comments?post=355"}],"version-history":[{"count":5,"href":"https:\/\/www.anzer-usa.com\/resources\/wp-json\/wp\/v2\/posts\/355\/revisions"}],"predecessor-version":[{"id":2172,"href":"https:\/\/www.anzer-usa.com\/resources\/wp-json\/wp\/v2\/posts\/355\/revisions\/2172"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/www.anzer-usa.com\/resources\/wp-json\/wp\/v2\/media\/2171"}],"wp:attachment":[{"href":"https:\/\/www.anzer-usa.com\/resources\/wp-json\/wp\/v2\/media?parent=355"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.anzer-usa.com\/resources\/wp-json\/wp\/v2\/categories?post=355"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.anzer-usa.com\/resources\/wp-json\/wp\/v2\/tags?post=355"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}