{"id":5912,"date":"2026-07-08T08:43:00","date_gmt":"2026-07-08T00:43:00","guid":{"rendered":"https:\/\/www.topfastpcb.com\/?p=5912"},"modified":"2026-06-25T10:01:12","modified_gmt":"2026-06-25T02:01:12","slug":"fr4-pcb-material","status":"publish","type":"post","link":"https:\/\/www.topfastpcb.com\/de\/blog\/fr4-pcb-material\/","title":{"rendered":"Das FR4-Leiterplattenmaterial im Detail"},"content":{"rendered":"<p>FR4 ist seit Jahrzehnten das Standardmaterial f\u00fcr Leiterplatten. Dank seiner Kombination aus elektrischer Leistungsf\u00e4higkeit, mechanischer Festigkeit und Erschwinglichkeit eignet es sich f\u00fcr alles \u2013 von einfachen Konsumg\u00fctern bis hin zu komplexen Mehrschichtleiterplatten.<\/p><p>Obwohl es heute viele Speziallaminate gibt, ist FR4 f\u00fcr die meisten nach wie vor die erste Wahl <a href=\"https:\/\/www.topfastpcb.com\/de\/blog\/what-is-a-pcb-design\/\">Leiterplattenentw\u00fcrfe<\/a> weil es ein gutes Gleichgewicht zwischen Zuverl\u00e4ssigkeit und Herstellungskosten bietet.<\/p><div class=\"wp-block-image\"><figure class=\"aligncenter size-full\"><img loading=\"lazy\" decoding=\"async\" width=\"600\" height=\"402\" src=\"https:\/\/www.topfastpcb.com\/wp-content\/uploads\/2026\/06\/FR4-PCB.jpg\" alt=\"FR4-Leiterplatte\" class=\"wp-image-5913\" srcset=\"https:\/\/www.topfastpcb.com\/wp-content\/uploads\/2026\/06\/FR4-PCB.jpg 600w, https:\/\/www.topfastpcb.com\/wp-content\/uploads\/2026\/06\/FR4-PCB-300x201.jpg 300w, https:\/\/www.topfastpcb.com\/wp-content\/uploads\/2026\/06\/FR4-PCB-18x12.jpg 18w\" sizes=\"auto, (max-width: 600px) 100vw, 600px\" \/><\/figure><\/div><div id=\"ez-toc-container\" class=\"ez-toc-v2_0_74 counter-hierarchy ez-toc-counter ez-toc-custom ez-toc-container-direction\">\n<div class=\"ez-toc-title-container\">\n<p class=\"ez-toc-title\" style=\"cursor:inherit\">Inhalts\u00fcbersicht<\/p>\n<span class=\"ez-toc-title-toggle\"><\/span><\/div>\n<nav><ul class='ez-toc-list ez-toc-list-level-1' ><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-1\" href=\"https:\/\/www.topfastpcb.com\/de\/blog\/fr4-pcb-material\/#What_FR4_Means\" >Was FR4 bedeutet<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-2\" href=\"https:\/\/www.topfastpcb.com\/de\/blog\/fr4-pcb-material\/#How_FR4_Is_Used_in_PCB_Manufacturing\" >Wie FR4 bei der Leiterplattenherstellung eingesetzt wird<\/a><ul class='ez-toc-list-level-3' ><li class='ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-3\" href=\"https:\/\/www.topfastpcb.com\/de\/blog\/fr4-pcb-material\/#Single-Sided_Boards\" >Einseitige Leiterplatten<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-4\" href=\"https:\/\/www.topfastpcb.com\/de\/blog\/fr4-pcb-material\/#Double-Sided_Boards\" >Doppelseitige Platinen<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-5\" href=\"https:\/\/www.topfastpcb.com\/de\/blog\/fr4-pcb-material\/#Multilayer_Boards\" >Mehrschichtige Boards<\/a><\/li><\/ul><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-6\" href=\"https:\/\/www.topfastpcb.com\/de\/blog\/fr4-pcb-material\/#Common_FR4_Material_Properties\" >Typische Materialeigenschaften von FR4<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-7\" href=\"https:\/\/www.topfastpcb.com\/de\/blog\/fr4-pcb-material\/#Standard_TG_and_High_TG_FR4\" >FR4 mit Standard-TG und hohem TG<\/a><ul class='ez-toc-list-level-3' ><li class='ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-8\" href=\"https:\/\/www.topfastpcb.com\/de\/blog\/fr4-pcb-material\/#Standard_TG_Materials\" >Standard-TG-Materialien<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-9\" href=\"https:\/\/www.topfastpcb.com\/de\/blog\/fr4-pcb-material\/#High_TG_Materials\" >Materialien mit hohem TG-Wert<\/a><\/li><\/ul><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-10\" href=\"https:\/\/www.topfastpcb.com\/de\/blog\/fr4-pcb-material\/#Advantages_of_FR4\" >Vorteile von FR4<\/a><ul class='ez-toc-list-level-3' ><li class='ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-11\" href=\"https:\/\/www.topfastpcb.com\/de\/blog\/fr4-pcb-material\/#Cost_Efficiency\" >Kosteneffizienz<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-12\" href=\"https:\/\/www.topfastpcb.com\/de\/blog\/fr4-pcb-material\/#Mature_Manufacturing_Process\" >Ausgereifter Fertigungsprozess<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-13\" href=\"https:\/\/www.topfastpcb.com\/de\/blog\/fr4-pcb-material\/#Mechanical_Stability\" >Mechanische Stabilit\u00e4t<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-14\" href=\"https:\/\/www.topfastpcb.com\/de\/blog\/fr4-pcb-material\/#Wide_Availability\" >Breite Verf\u00fcgbarkeit<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-15\" href=\"https:\/\/www.topfastpcb.com\/de\/blog\/fr4-pcb-material\/#Suitable_for_Most_Applications\" >F\u00fcr die meisten Anwendungen geeignet<\/a><\/li><\/ul><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-16\" href=\"https:\/\/www.topfastpcb.com\/de\/blog\/fr4-pcb-material\/#Limitations_of_FR4\" >Einschr\u00e4nkungen von FR4<\/a><ul class='ez-toc-list-level-3' ><li class='ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-17\" href=\"https:\/\/www.topfastpcb.com\/de\/blog\/fr4-pcb-material\/#Higher_Signal_Loss\" >H\u00f6herer Signalverlust<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-18\" href=\"https:\/\/www.topfastpcb.com\/de\/blog\/fr4-pcb-material\/#Limited_Thermal_Conductivity\" >Begrenzte W\u00e4rmeleitf\u00e4higkeit<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-19\" href=\"https:\/\/www.topfastpcb.com\/de\/blog\/fr4-pcb-material\/#Dk_Variation\" >Dk-Variation<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-20\" href=\"https:\/\/www.topfastpcb.com\/de\/blog\/fr4-pcb-material\/#Not_Ideal_for_RF_Applications\" >Nicht ideal f\u00fcr HF-Anwendungen<\/a><\/li><\/ul><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-21\" href=\"https:\/\/www.topfastpcb.com\/de\/blog\/fr4-pcb-material\/#Popular_FR4_Material_Brands\" >Beliebte Marken f\u00fcr FR4-Material<\/a><ul class='ez-toc-list-level-3' ><li class='ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-22\" href=\"https:\/\/www.topfastpcb.com\/de\/blog\/fr4-pcb-material\/#Shengyi\" >Shengyi<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-23\" href=\"https:\/\/www.topfastpcb.com\/de\/blog\/fr4-pcb-material\/#Kingboard\" >Kingboard<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-24\" href=\"https:\/\/www.topfastpcb.com\/de\/blog\/fr4-pcb-material\/#ITEQ\" >ITEQ<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-25\" href=\"https:\/\/www.topfastpcb.com\/de\/blog\/fr4-pcb-material\/#Isola\" >Insel<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-26\" href=\"https:\/\/www.topfastpcb.com\/de\/blog\/fr4-pcb-material\/#Ventec\" >Ventec<\/a><\/li><\/ul><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-27\" href=\"https:\/\/www.topfastpcb.com\/de\/blog\/fr4-pcb-material\/#Typical_Applications_of_FR4\" >Typische Anwendungsbereiche von FR4<\/a><ul class='ez-toc-list-level-3' ><li class='ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-28\" href=\"https:\/\/www.topfastpcb.com\/de\/blog\/fr4-pcb-material\/#Consumer_Electronics\" >Unterhaltungselektronik<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-29\" href=\"https:\/\/www.topfastpcb.com\/de\/blog\/fr4-pcb-material\/#Industrial_Equipment\" >Industrielle Ausr\u00fcstung<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-30\" href=\"https:\/\/www.topfastpcb.com\/de\/blog\/fr4-pcb-material\/#Automotive_Electronics\" >Kfz-Elektronik<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-31\" href=\"https:\/\/www.topfastpcb.com\/de\/blog\/fr4-pcb-material\/#Medical_Devices\" >Medizinische Ger\u00e4te<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-32\" href=\"https:\/\/www.topfastpcb.com\/de\/blog\/fr4-pcb-material\/#Communication_Products\" >Kommunikationsprodukte<\/a><\/li><\/ul><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-33\" href=\"https:\/\/www.topfastpcb.com\/de\/blog\/fr4-pcb-material\/#When_FR4_Is_No_Longer_Enough\" >Wenn FR4 nicht mehr ausreicht<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-34\" href=\"https:\/\/www.topfastpcb.com\/de\/blog\/fr4-pcb-material\/#FAQ\" >FAQ<\/a><\/li><\/ul><\/nav><\/div>\n<h2 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"What_FR4_Means\"><\/span>Was FR4 bedeutet<span class=\"ez-toc-section-end\"><\/span><\/h2><p>\u201eFR\u201c steht f\u00fcr \u201eflame retardant\u201c (flammhemmend), w\u00e4hrend die Zahl 4 sich auf die im NEMA-Standard festgelegte Klassifizierung bezieht.<\/p><p>FR4 besteht aus gewebtem Glasfasergewebe, das mit Epoxidharz impr\u00e4gniert ist. Nach der Aush\u00e4rtung unter W\u00e4rme und Druck bildet das Material einen starren, isolierenden Tr\u00e4ger, auf dem Kupferschichten und elektronische Bauteile angebracht werden k\u00f6nnen.<\/p><p>Das Material bietet:<\/p><ul class=\"wp-block-list\"><li>Gute mechanische Festigkeit<\/li>\n\n<li>Stabile elektrische Eigenschaften<\/li>\n\n<li>Hervorragende Isolierung<\/li>\n\n<li>Feuchtigkeitsbest\u00e4ndigkeit<\/li>\n\n<li>Niedrige Herstellungskosten<\/li><\/ul><p>Diese Eigenschaften erkl\u00e4ren, warum FR4 den Markt dominiert. <a href=\"https:\/\/www.topfastpcb.com\/de\/pcb-industries\/\">Leiterplattenindustrie<\/a>.<\/p><h2 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"How_FR4_Is_Used_in_PCB_Manufacturing\"><\/span>Wie FR4 bei der Leiterplattenherstellung eingesetzt wird<span class=\"ez-toc-section-end\"><\/span><\/h2><p>FR4 dient als dielektrisches Material zwischen den Kupferschichten.<\/p><p>Zu den typischen Strukturen geh\u00f6ren:<\/p><h3 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"Single-Sided_Boards\"><\/span>Einseitige Leiterplatten<span class=\"ez-toc-section-end\"><\/span><\/h3><p>Verwendet in:<\/p><ul class=\"wp-block-list\"><li>Netzteile<\/li>\n\n<li>Haushaltsger\u00e4te<\/li>\n\n<li>LED-Produkte<\/li><\/ul><h3 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"Double-Sided_Boards\"><\/span>Doppelseitige Platinen<span class=\"ez-toc-section-end\"><\/span><\/h3><p>H\u00e4ufig anzutreffen in:<\/p><ul class=\"wp-block-list\"><li>Industriesteuerungen<\/li>\n\n<li>Kfz-Elektronik<\/li>\n\n<li>Kommunikationsausr\u00fcstung<\/li><\/ul><h3 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"Multilayer_Boards\"><\/span>Mehrschichtige Boards<span class=\"ez-toc-section-end\"><\/span><\/h3><p>Weit verbreitet f\u00fcr:<\/p><ul class=\"wp-block-list\"><li>Server<\/li>\n\n<li>Medizinische Ger\u00e4te<\/li>\n\n<li>Ausr\u00fcstung f\u00fcr die Vernetzung<\/li>\n\n<li>Eingebettete Systeme<\/li><\/ul><p>Moderne Mehrschichtplatinen mit 4 bis 20 Schichten werden \u00fcblicherweise aus FR4-Laminaten und Prepregs hergestellt.<\/p><h2 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"Common_FR4_Material_Properties\"><\/span>Typische Materialeigenschaften von FR4<span class=\"ez-toc-section-end\"><\/span><\/h2><p>Obwohl die Spezifikationen je nach Hersteller variieren, weisen Standard-FR4-Materialien in der Regel die folgenden Eigenschaften auf.<\/p><figure class=\"wp-block-table\"><table class=\"has-fixed-layout\"><tbody><tr><th>Eigentum<\/th><th>Typischer Wert<\/th><\/tr><tr><td>Dielektrizit\u00e4tskonstante (Dk)<\/td><td>4.2-4.8<\/td><\/tr><tr><td>Verlustfaktor (Df)<\/td><td>0.015-0.025<\/td><\/tr><tr><td>Glas\u00fcbergangstemperatur<\/td><td>130\u2013170 \u00b0C<\/td><\/tr><tr><td>W\u00e4rmeleitf\u00e4higkeit<\/td><td>0,3\u20130,4 W\/m\u00b7K<\/td><\/tr><tr><td>Volumenwiderstand<\/td><td>&gt;10\u00b9\u00b2 \u03a9\u00b7cm<\/td><\/tr><tr><td>Brandschutzklasse<\/td><td>UL94 V-0<\/td><\/tr><\/tbody><\/table><\/figure><p>Diese Werte eignen sich f\u00fcr die meisten elektronischen Produkte mit niedriger und mittlerer Geschwindigkeit.<\/p><div class=\"wp-block-image\"><figure class=\"aligncenter size-full\"><img loading=\"lazy\" decoding=\"async\" width=\"600\" height=\"402\" src=\"https:\/\/www.topfastpcb.com\/wp-content\/uploads\/2026\/06\/FR4-PCB-1.jpg\" alt=\"FR4-Leiterplatte\" class=\"wp-image-5914\" srcset=\"https:\/\/www.topfastpcb.com\/wp-content\/uploads\/2026\/06\/FR4-PCB-1.jpg 600w, https:\/\/www.topfastpcb.com\/wp-content\/uploads\/2026\/06\/FR4-PCB-1-300x201.jpg 300w, https:\/\/www.topfastpcb.com\/wp-content\/uploads\/2026\/06\/FR4-PCB-1-18x12.jpg 18w\" sizes=\"auto, (max-width: 600px) 100vw, 600px\" \/><\/figure><\/div><h2 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"Standard_TG_and_High_TG_FR4\"><\/span>FR4 mit Standard-TG und hohem TG<span class=\"ez-toc-section-end\"><\/span><\/h2><p>Ein wichtiger Parameter von FR4 ist die Glas\u00fcbergangstemperatur (TG).<\/p><h3 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"Standard_TG_Materials\"><\/span>Standard-TG-Materialien<span class=\"ez-toc-section-end\"><\/span><\/h3><p>Typische TG-Werte liegen zwischen 130 \u00b0C und 140 \u00b0C.<\/p><p>Die Anwendungen umfassen:<\/p><ul class=\"wp-block-list\"><li>Unterhaltungselektronik<\/li>\n\n<li>Haushaltsger\u00e4te<\/li>\n\n<li>Allgemeine Industrieprodukte<\/li><\/ul><h3 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"High_TG_Materials\"><\/span>Materialien mit hohem TG-Wert<span class=\"ez-toc-section-end\"><\/span><\/h3><p>Laminate mit hohem TG-Wert weisen in der Regel Werte \u00fcber 170 \u00b0C auf.<\/p><p>Sie bieten eine bessere Leistung unter folgenden Bedingungen:<\/p><ul class=\"wp-block-list\"><li>Bleifreie Montage<\/li>\n\n<li>Hohe Betriebstemperaturen<\/li>\n\n<li>Mehrere Reflow-Zyklen<\/li><\/ul><p>Materialien mit hohem TG-Wert kommen h\u00e4ufig vor in:<\/p><ul class=\"wp-block-list\"><li>Kfz-Elektronik<\/li>\n\n<li>Stromversorgungen<\/li>\n\n<li>Server<\/li>\n\n<li>Telekommunikationsger\u00e4te<\/li><\/ul><p><em>Interner Link: <a href=\"https:\/\/www.topfastpcb.com\/de\/blog\/high-tg-fr4-pcb\/\">FR4-Leiterplatte mit hohem TG-Wert<\/a><\/em><\/p><h2 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"Advantages_of_FR4\"><\/span>Vorteile von FR4<span class=\"ez-toc-section-end\"><\/span><\/h2><p>Mehrere Faktoren machen FR4 zum branchenweit am h\u00e4ufigsten verwendeten Substrat.<\/p><h3 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"Cost_Efficiency\"><\/span>Kosteneffizienz<span class=\"ez-toc-section-end\"><\/span><\/h3><p>FR4 ist deutlich kosteng\u00fcnstiger als HF-Laminate und Spezialwerkstoffe.<\/p><h3 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"Mature_Manufacturing_Process\"><\/span>Ausgereifter Fertigungsprozess<span class=\"ez-toc-section-end\"><\/span><\/h3><p>Praktisch jeder Leiterplattenhersteller bietet die Fertigung von FR4-Leiterplatten an.<\/p><h3 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"Mechanical_Stability\"><\/span>Mechanische Stabilit\u00e4t<span class=\"ez-toc-section-end\"><\/span><\/h3><p>Die Glasfaserkonstruktion sorgt f\u00fcr hervorragende Steifigkeit und Formstabilit\u00e4t.<\/p><h3 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"Wide_Availability\"><\/span>Breite Verf\u00fcgbarkeit<span class=\"ez-toc-section-end\"><\/span><\/h3><p>Gro\u00dfe Anbieter wie Shengyi, Kingboard, ITEQ und Isola bieten zahlreiche FR4-Produktfamilien an.<\/p><h3 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"Suitable_for_Most_Applications\"><\/span>F\u00fcr die meisten Anwendungen geeignet<span class=\"ez-toc-section-end\"><\/span><\/h3><p>Bei Frequenzen unterhalb von mehreren Gigahertz erf\u00fcllt FR4 in der Regel die elektrischen Anforderungen, ohne dass dabei \u00fcberm\u00e4\u00dfige Kosten entstehen.<\/p><h2 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"Limitations_of_FR4\"><\/span>Einschr\u00e4nkungen von FR4<span class=\"ez-toc-section-end\"><\/span><\/h2><p>Trotz seiner Vielseitigkeit ist FR4 nicht f\u00fcr jede Anwendung geeignet.<\/p><h3 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"Higher_Signal_Loss\"><\/span>H\u00f6herer Signalverlust<span class=\"ez-toc-section-end\"><\/span><\/h3><p>Im Vergleich zu verlustarmen Laminaten weist FR4 bei hohen Frequenzen einen h\u00f6heren dielektrischen Verlust auf.<\/p><h3 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"Limited_Thermal_Conductivity\"><\/span>Begrenzte W\u00e4rmeleitf\u00e4higkeit<span class=\"ez-toc-section-end\"><\/span><\/h3><p>Die W\u00e4rmeableitung ist relativ schlecht.<\/p><h3 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"Dk_Variation\"><\/span>Dk-Variation<span class=\"ez-toc-section-end\"><\/span><\/h3><p>Die Dielektrizit\u00e4tskonstante \u00e4ndert sich in Abh\u00e4ngigkeit von der Frequenz und den Fertigungsbedingungen, was sich auf die Impedanzkonsistenz auswirken kann.<\/p><h3 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"Not_Ideal_for_RF_Applications\"><\/span>Nicht ideal f\u00fcr HF-Anwendungen<span class=\"ez-toc-section-end\"><\/span><\/h3><p>F\u00fcr Mikrowellen- und Millimeterwellen-Konstruktionen sind h\u00e4ufig spezielle Materialien erforderlich.<\/p><h2 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"Popular_FR4_Material_Brands\"><\/span>Beliebte Marken f\u00fcr FR4-Material<span class=\"ez-toc-section-end\"><\/span><\/h2><p>Mehrere Laminathersteller dominieren den Markt.<\/p><h3 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"Shengyi\"><\/span>Shengyi<span class=\"ez-toc-section-end\"><\/span><\/h3><p>In Asien weit verbreitet und f\u00fcr seine gleichbleibende Qualit\u00e4t bekannt.<\/p><h3 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"Kingboard\"><\/span>Kingboard<span class=\"ez-toc-section-end\"><\/span><\/h3><p>Einer der weltweit gr\u00f6\u00dften Anbieter von Leiterplattenlaminaten.<\/p><h3 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"ITEQ\"><\/span>ITEQ<span class=\"ez-toc-section-end\"><\/span><\/h3><p>Wird h\u00e4ufig f\u00fcr Netzwerk- und Industrieanwendungen eingesetzt.<\/p><h3 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"Isola\"><\/span>Insel<span class=\"ez-toc-section-end\"><\/span><\/h3><p>In Nordamerika beliebte und \u00e4u\u00dferst zuverl\u00e4ssige Produkte.<\/p><h3 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"Ventec\"><\/span>Ventec<span class=\"ez-toc-section-end\"><\/span><\/h3><p>Liefert Materialien f\u00fcr Hochgeschwindigkeitsanwendungen und das W\u00e4rmemanagement.<\/p><p>Verschiedene Hersteller bieten gleichwertige Werkstoffsorten an, wodurch Ingenieure die Kosten optimieren und die Flexibilit\u00e4t in der Lieferkette erh\u00f6hen k\u00f6nnen.<\/p><h2 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"Typical_Applications_of_FR4\"><\/span>Typische Anwendungsbereiche von FR4<span class=\"ez-toc-section-end\"><\/span><\/h2><p>FR4-Leiterplatten kommen in fast allen Bereichen der Elektronikindustrie zum Einsatz.<\/p><h3 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"Consumer_Electronics\"><\/span>Unterhaltungselektronik<span class=\"ez-toc-section-end\"><\/span><\/h3><ul class=\"wp-block-list\"><li>Intelligente Ger\u00e4te<\/li>\n\n<li>Haushaltsger\u00e4te<\/li>\n\n<li>Netzteile<\/li><\/ul><h3 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"Industrial_Equipment\"><\/span>Industrielle Ausr\u00fcstung<span class=\"ez-toc-section-end\"><\/span><\/h3><ul class=\"wp-block-list\"><li>PLC-Systeme<\/li>\n\n<li>Wechselrichter<\/li>\n\n<li>Automatisierungssteuerungen<\/li><\/ul><h3 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"Automotive_Electronics\"><\/span>Kfz-Elektronik<span class=\"ez-toc-section-end\"><\/span><\/h3><ul class=\"wp-block-list\"><li>Karosserie-Steuermodule<\/li>\n\n<li>Sensoren<\/li>\n\n<li>Infotainment-Systeme<\/li><\/ul><h3 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"Medical_Devices\"><\/span>Medizinische Ger\u00e4te<span class=\"ez-toc-section-end\"><\/span><\/h3><ul class=\"wp-block-list\"><li>\u00dcberwachungsger\u00e4te<\/li>\n\n<li>Tragbare Messger\u00e4te<\/li><\/ul><h3 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"Communication_Products\"><\/span>Kommunikationsprodukte<span class=\"ez-toc-section-end\"><\/span><\/h3><ul class=\"wp-block-list\"><li>Router<\/li>\n\n<li>Schalter<\/li>\n\n<li>Netzwerkmodule<\/li><\/ul><p>Sofern keine hohen Frequenzen oder extreme Temperaturen eine Rolle spielen, ist FR4 nach wie vor eine praktische und wirtschaftliche Wahl.<\/p><div class=\"wp-block-image\"><figure class=\"aligncenter size-full\"><img loading=\"lazy\" decoding=\"async\" width=\"600\" height=\"402\" src=\"https:\/\/www.topfastpcb.com\/wp-content\/uploads\/2026\/06\/FR4-PCB-2.jpg\" alt=\"FR4-Leiterplatte\" class=\"wp-image-5915\" srcset=\"https:\/\/www.topfastpcb.com\/wp-content\/uploads\/2026\/06\/FR4-PCB-2.jpg 600w, https:\/\/www.topfastpcb.com\/wp-content\/uploads\/2026\/06\/FR4-PCB-2-300x201.jpg 300w, https:\/\/www.topfastpcb.com\/wp-content\/uploads\/2026\/06\/FR4-PCB-2-18x12.jpg 18w\" sizes=\"auto, (max-width: 600px) 100vw, 600px\" \/><\/figure><\/div><h2 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"When_FR4_Is_No_Longer_Enough\"><\/span>Wenn FR4 nicht mehr ausreicht<span class=\"ez-toc-section-end\"><\/span><\/h2><p>Da die Datenraten und Frequenzen stetig steigen, sto\u00dfen Ingenieure h\u00e4ufig an die Grenzen des herk\u00f6mmlichen FR4.<\/p><p>Anwendungen wie zum Beispiel:<\/p><ul class=\"wp-block-list\"><li>5G-Infrastruktur<\/li>\n\n<li>Hochgeschwindigkeitsserver<\/li>\n\n<li>Radaranlagen<\/li>\n\n<li>RF-Module<\/li><\/ul><p>erfordert m\u00f6glicherweise Materialien mit:<\/p><ul class=\"wp-block-list\"><li>Geringerer dielektrischer Verlust<\/li>\n\n<li>Stabilere Dk-Werte<\/li>\n\n<li>Verbesserte thermische Leistung<\/li><\/ul><p>In diesen F\u00e4llen sind Rogers, PTFE, Megtron und andere verlustarme Materialien die geeignetere Wahl.<\/p><h2 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"FAQ\"><\/span>FAQ<span class=\"ez-toc-section-end\"><\/span><\/h2><div class=\"schema-faq wp-block-yoast-faq-block\"><div class=\"schema-faq-section\" id=\"faq-question-1782352025515\"><strong class=\"schema-faq-question\">F: Ist FR4 dasselbe wie Glasfaser?<\/strong> <p class=\"schema-faq-answer\">A: Nicht ganz. FR4 ist ein Verbundwerkstoff aus Glasfasergewebe und Epoxidharz. Die Glasfaser sorgt f\u00fcr Festigkeit, w\u00e4hrend das Harz die Isolierung gew\u00e4hrleistet.<\/p> <\/div> <div class=\"schema-faq-section\" id=\"faq-question-1782352037888\"><strong class=\"schema-faq-question\">F: Wie hoch ist die Dielektrizit\u00e4tskonstante von FR4?<\/strong> <p class=\"schema-faq-answer\">A: Die meisten FR4-Materialien weisen je nach Frequenz und Harzsystem eine Dielektrizit\u00e4tskonstante zwischen 4,2 und 4,8 auf.<\/p> <\/div> <div class=\"schema-faq-section\" id=\"faq-question-1782352051553\"><strong class=\"schema-faq-question\">F: Eignet sich FR4 f\u00fcr den Entwurf von Hochgeschwindigkeits-Leiterplatten?<\/strong> <p class=\"schema-faq-answer\">A: FR4 eignet sich gut f\u00fcr viele Anwendungen mit mittleren Geschwindigkeiten. F\u00fcr Schaltungen mit extrem hohen Geschwindigkeiten oder HF-Schaltungen sind m\u00f6glicherweise verlustarme Materialien erforderlich.<\/p> <\/div> <div class=\"schema-faq-section\" id=\"faq-question-1782352064778\"><strong class=\"schema-faq-question\">F: Was bedeutet \u201eHigh TG FR4\u201c?<\/strong> <p class=\"schema-faq-answer\">A: FR4 mit hohem TG bezeichnet Materialien mit einer Glas\u00fcbergangstemperatur von \u00fcber 170 \u00b0C, die eine verbesserte thermische Stabilit\u00e4t aufweisen.<\/p> <\/div> <div class=\"schema-faq-section\" id=\"faq-question-1782352077146\"><strong class=\"schema-faq-question\">F: Welche Unternehmen stellen FR4-Materialien her?<\/strong> <p class=\"schema-faq-answer\">A: Zu den wichtigsten Lieferanten z\u00e4hlen Shengyi, Kingboard, ITEQ, Isola und Ventec.<\/p> <\/div> <\/div>","protected":false},"excerpt":{"rendered":"<p>FR4 ist dank seiner ausgewogenen Kombination aus elektrischer Leistungsf\u00e4higkeit, mechanischer Festigkeit und Kosten das am h\u00e4ufigsten verwendete Leiterplattensubstrat. In diesem Artikel werden die Eigenschaften von FR4, Materialien mit hoher Glas\u00fcbergangstemperatur (TG) sowie die wichtigsten Laminatlieferanten erl\u00e4utert und es wird dargelegt, in welchen Bereichen FR4 nach wie vor die bevorzugte Wahl in der modernen Leiterplattenfertigung ist.<\/p>","protected":false},"author":1,"featured_media":5916,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[108],"tags":[483,484],"class_list":["post-5912","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-news","tag-fr4-pcb","tag-pcb-material"],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v25.1 - https:\/\/yoast.com\/wordpress\/plugins\/seo\/ -->\n<title>FR4 PCB Material Explained<\/title>\n<meta name=\"description\" content=\"Discover the properties, advantages, limitations, and applications of FR4 PCB material. 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