{"id":5601,"date":"2026-05-14T03:41:36","date_gmt":"2026-05-14T03:41:36","guid":{"rendered":"https:\/\/lp.szlogic.cn\/knowledge-center\/rj45-connector-high-temperature-thermoplastic-housing\/"},"modified":"2026-05-25T09:00:46","modified_gmt":"2026-05-25T09:00:46","slug":"rj45-connector-high-temperature-thermoplastic-housing","status":"publish","type":"post","link":"https:\/\/lp.szlogic.cn\/ru\/knowledge-center\/rj45-connector-high-temperature-thermoplastic-housing","title":{"rendered":"Choosing the Right High-Temperature Thermoplastic Materials for RJ45 Connector Housing"},"content":{"rendered":"<figure class=\"wp-block-image aligncenter size-large\"><img fetchpriority=\"high\" decoding=\"async\" width=\"1200\" height=\"712\" src=\"https:\/\/lp.szlogic.cn\/wp-content\/uploads\/2026\/05\/6f7bfcaf15314c0991af8ceb474cb848.jpg\" alt=\"Thermoplastic Materials for RJ45 Connector Housing\" class=\"wp-image-5599\" srcset=\"https:\/\/lp.szlogic.cn\/wp-content\/uploads\/2026\/05\/6f7bfcaf15314c0991af8ceb474cb848.jpg 1200w, https:\/\/lp.szlogic.cn\/wp-content\/uploads\/2026\/05\/6f7bfcaf15314c0991af8ceb474cb848-300x178.jpg 300w, https:\/\/lp.szlogic.cn\/wp-content\/uploads\/2026\/05\/6f7bfcaf15314c0991af8ceb474cb848-1024x608.jpg 1024w, https:\/\/lp.szlogic.cn\/wp-content\/uploads\/2026\/05\/6f7bfcaf15314c0991af8ceb474cb848-768x456.jpg 768w, https:\/\/lp.szlogic.cn\/wp-content\/uploads\/2026\/05\/6f7bfcaf15314c0991af8ceb474cb848-18x12.jpg 18w\" sizes=\"(max-width: 1200px) 100vw, 1200px\" \/><\/figure>\n\n\n\n<p class=\"wp-block-paragraph\">As Ethernet-based applications evolve to meet the demands of <strong>higher speeds, tighter integration, and harsher environments<\/strong>, <a target=\"_blank\" rel=\"\" href=\"https:\/\/www.l-p.com\/store-17492-integrated-rj45-connector.htm\">RJ45 connectors<\/a> must offer more than just electrical connectivity\u2014they must also withstand thermal, mechanical, and chemical stress. One key factor behind this resilience is the choice of housing material, especially in high-temperature applications such as <strong>reflow soldering, industrial automation, and automotive networking<\/strong>.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">In this article, we\u2019ll explore common <strong>high-temperature thermoplastic materials<\/strong> used for RJ45 connector housings, compare their properties, and provide guidance to engineers and buyers on making the right selection.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\" > Key Requirements for RJ45 Housing Materials<\/h3>\n\n\n\n<ul class=\"wp-block-list\">\n<li><p><strong>High Heat Resistance<\/strong> \u2013 Often up to 260\u2013265\u00b0C (for 5 seconds in reflow soldering)<\/p><\/li><li><p><strong>Flame Retardant<\/strong> \u2013 UL94 V-0 certified<\/p><\/li><li><p><strong>Dimensional Stability<\/strong> \u2013 Essential for tight pin alignment, especially in SMT designs<\/p><\/li><li><p><strong>Good Moldability<\/strong> \u2013 For precision injection molding and volume production<\/p><\/li><li><p><strong>RoHS\/REACH Compliance<\/strong><\/p><\/li>\n<\/ul>\n\n\n\n<blockquote class=\"wp-block-quote is-layout-flow wp-block-quote-is-layout-flow\"><p>&#x1f50d; Note: Short-term heat resistance refers to soldering peak conditions (typically 5 seconds); it is not the same as long-term continuous use temperature (<strong>RTI<\/strong>).<\/p><\/blockquote>\n\n\n\n<h3 class=\"wp-block-heading\" >Common High-Temperature Thermoplastics Used in RJ45 Housings<\/h3>\n\n\n\n<figure class=\"wp-block-table\">\n<table class=\"has-fixed-layout\">\n<colgroup><col style=\"width: 119px;\"\/><col style=\"min-width: 25px;\"\/><col style=\"width: 139px;\"\/><col style=\"width: 146px;\"\/><col style=\"width: 171px;\"\/><\/colgroup><tbody><tr><th colspan=\"1\" rowspan=\"1\" colwidth=\"119\"><p\/><p>Materials<\/p><\/th><th colspan=\"1\" rowspan=\"1\"><p>Full Name<\/p><\/th><th colspan=\"1\" rowspan=\"1\" colwidth=\"139\"><p>Thermal Limit (Short-Term)<\/p><\/th><th colspan=\"1\" rowspan=\"1\" colwidth=\"146\"><p>Applications<\/p><\/th><th colspan=\"1\" rowspan=\"1\" colwidth=\"171\"><p>Key Properties<\/p><\/th><\/tr><tr><td colspan=\"1\" rowspan=\"1\" colwidth=\"119\"><p><strong>PBT + GF<\/strong><\/p><\/td><td colspan=\"1\" rowspan=\"1\"><p>Polybutylene Terephthalate (Glass-Filled)<\/p><\/td><td colspan=\"1\" rowspan=\"1\" colwidth=\"139\"><p>~250\u2013265\u00b0C<br\/>(5 sec, wave soldering only)<\/p><\/td><td colspan=\"1\" rowspan=\"1\" colwidth=\"146\"><p>Through-hole, wave soldering<\/p><\/td><td colspan=\"1\" rowspan=\"1\" colwidth=\"171\"><p>Cost-effective, high mechanical strength, UL94 V-0. Not suitable for reflow soldering.<\/p><\/td><\/tr><tr><td colspan=\"1\" rowspan=\"1\" colwidth=\"119\"><p><strong>PA66 + GF<\/strong><\/p><\/td><td colspan=\"1\" rowspan=\"1\"><p>Nylon 66 (Glass-Filled)<\/p><\/td><td colspan=\"1\" rowspan=\"1\" colwidth=\"139\"><p>~240\u2013250\u00b0C <br\/>(5 sec, with proper drying)<\/p><\/td><td colspan=\"1\" rowspan=\"1\" colwidth=\"146\"><p>Modular jacks<\/p><\/td><td colspan=\"1\" rowspan=\"1\" colwidth=\"171\"><p>Tough and durable, but more moisture-sensitive. Needs moisture control before processing.<\/p><\/td><\/tr><tr><td colspan=\"1\" rowspan=\"1\" colwidth=\"119\"><p><strong>LCP<\/strong><\/p><\/td><td colspan=\"1\" rowspan=\"1\"><p>Liquid Crystal Polymer<\/p><\/td><td colspan=\"1\" rowspan=\"1\" colwidth=\"139\"><p>~260\u00b0C+<br\/>(reflow compatible)<\/p><\/td><td colspan=\"1\" rowspan=\"1\" colwidth=\"146\"><p>SMT RJ45, high-speed Ethernet<\/p><\/td><td colspan=\"1\" rowspan=\"1\" colwidth=\"171\"><p>Superior dimensional precision, low warpage, fast mold cycle, fully reflow capable.<\/p><\/td><\/tr><tr><td colspan=\"1\" rowspan=\"1\" colwidth=\"119\"><p><strong>PEEK<\/strong><\/p><\/td><td colspan=\"1\" rowspan=\"1\"><p>Polyether Ether Ketone<\/p><\/td><td colspan=\"1\" rowspan=\"1\" colwidth=\"139\"><p>~300\u00b0C<br\/>(short-term)<\/p><\/td><td colspan=\"1\" rowspan=\"1\" colwidth=\"146\"><p>Extreme environments<\/p><\/td><td colspan=\"1\" rowspan=\"1\" colwidth=\"171\"><p>Premium performance, high cost. Suitable for harsh conditions and long-term thermal loads.<\/p><\/td><\/tr><\/tbody>\n<\/table>\n<\/figure>\n\n\n\n<blockquote class=\"wp-block-quote is-layout-flow wp-block-quote-is-layout-flow\"><p>&#x1f4cc; Tip: Always distinguish between short-term soldering temperature limits and long-term service temperatures like <strong>RTI (Relative Thermal Index)<\/strong>.<\/p><\/blockquote>\n\n\n\n<h3 class=\"wp-block-heading\" >PBT vs LCP: Which to Use?<\/h3>\n\n\n\n<figure class=\"wp-block-table\">\n<table class=\"has-fixed-layout\">\n<colgroup><col style=\"width: 226px;\"\/><col style=\"width: 278px;\"\/><col style=\"min-width: 25px;\"\/><\/colgroup><tbody><tr><th colspan=\"1\" rowspan=\"1\" colwidth=\"226\"><p>Property<\/p><\/th><th colspan=\"1\" rowspan=\"1\" colwidth=\"278\"><p><strong>PBT<\/strong><\/p><\/th><th colspan=\"1\" rowspan=\"1\"><p><strong>LCP<\/strong><\/p><\/th><\/tr><tr><td colspan=\"1\" rowspan=\"1\" colwidth=\"226\"><p>Cost<\/p><\/td><td colspan=\"1\" rowspan=\"1\" colwidth=\"278\"><p>Low<\/p><\/td><td colspan=\"1\" rowspan=\"1\"><p> Higher<\/p><\/td><\/tr><tr><td colspan=\"1\" rowspan=\"1\" colwidth=\"226\"><p>Soldering Compatibility<\/p><\/td><td colspan=\"1\" rowspan=\"1\" colwidth=\"278\"><p>Wave soldering only (265\u00b0C\/5 sec). Not for reflow.<\/p><\/td><td colspan=\"1\" rowspan=\"1\"><p>Full reflow compatible (JEDEC J-STD-020)<\/p><\/td><\/tr><tr><td colspan=\"1\" rowspan=\"1\" colwidth=\"226\"><p>Dimensional Stability<\/p><\/td><td colspan=\"1\" rowspan=\"1\" colwidth=\"278\"><p>Good<\/p><\/td><td colspan=\"1\" rowspan=\"1\"><p>Excellent<\/p><\/td><\/tr><tr><td colspan=\"1\" rowspan=\"1\" colwidth=\"226\"><p>Best For<\/p><\/td><td colspan=\"1\" rowspan=\"1\" colwidth=\"278\"><p>Standard RJ45, through-hole<\/p><\/td><td colspan=\"1\" rowspan=\"1\"><p>SMT, multi-port, high-speed<\/p><\/td><\/tr><\/tbody>\n<\/table>\n<\/figure>\n\n\n\n<h3 class=\"wp-block-heading\" > Real-World Examples from LINK-PP<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>1. LPJE101NNL<\/strong><\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><p><a target=\"_blank\" rel=\"\" href=\"https:\/\/www.l-p.com\/products\/469435.htm\">Product Page \u00bb<\/a><\/p><\/li><li><p><strong>Housing &amp; Insert Material<\/strong>: PBT, UL94 V-0<\/p><\/li><li><p><strong>Soldering Capability<\/strong>: Wave soldering, 265\u00b0C for 5 seconds<\/p><\/li><li><p><strong>Application<\/strong>: Through-hole magnetic RJ45 connector<\/p><\/li>\n<\/ul>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>2. LPJG19018CNL<\/strong><\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><p><a target=\"_blank\" rel=\"\" href=\"https:\/\/www.l-p.com\/products\/474226.htm\">Product Page \u00bb<\/a><\/p><\/li><li><p><strong>Housing Material<\/strong>: Thermoplastic <strong>LCP<\/strong><\/p><\/li><li><p><strong>Application<\/strong>: SMT-compatible RJ45 connector, reflow soldering supported<\/p><\/li>\n<\/ul>\n\n\n\n<h3 class=\"wp-block-heading\" >&#x1f6e0;&#xfe0f; Custom Material Support<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">At <a target=\"_blank\" rel=\"\" href=\"https:\/\/www.l-p.com\/\"><strong>LINK-PP<\/strong><\/a>, we understand that different industries\u2014from <strong>telecom<\/strong>, <strong>automotive<\/strong>, to <strong>industrial controls<\/strong>\u2014require specific material performance. That\u2019s why we offer:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><p>&#x2705; <strong>Custom RJ45 connector housing materials<\/strong><\/p><\/li><li><p>&#x2705; Engineering support for <strong>thermal, flame-retardant, or chemical-resistant applications<\/strong><\/p><\/li><li><p>&#x2705; Tailored solutions for SMT, PoE, or high-frequency Ethernet designs<\/p><\/li>\n<\/ul>\n\n\n\n<blockquote class=\"wp-block-quote is-layout-flow wp-block-quote-is-layout-flow\"><p><strong>&#x1f4e9; Have a specific material requirement? <\/strong><a target=\"_blank\" rel=\"\" href=\"https:\/\/www.l-p.com\/page\/contactus.htm\"><strong>Contact LINK-PP<\/strong><\/a><strong> for custom options.<\/strong><\/p><\/blockquote>\n\n\n\n<h3 class=\"wp-block-heading\" > Final Takeaways<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">Choosing the right <strong>high-temperature thermoplastic<\/strong> for your RJ45 connector housing is essential for:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><p>Ensuring compliance with <strong>UL<\/strong>, <strong>RoHS<\/strong>, and <strong>soldering standards<\/strong><\/p><\/li><li><p>Achieving <strong>long-term reliability<\/strong> in high-heat, high-frequency environments<\/p><\/li>\n<\/ul>\n\n\n\n<p class=\"wp-block-paragraph\">Supporting modern <strong>assembly processes<\/strong> like <a target=\"_blank\" rel=\"\" href=\"https:\/\/resources.l-p.com\/knowledge-center\/wave-soldering-vs-reflow-soldering-key-differences\"><strong>reflow soldering<\/strong> or <strong>wave soldering<\/strong><\/a><\/p>\n\n\n\n<blockquote class=\"wp-block-quote is-layout-flow wp-block-quote-is-layout-flow\"><p>&#x1f9e0; Remember: Match your material not just to the temperature rating, but to your <strong>soldering process<\/strong> and <strong>mechanical tolerance needs<\/strong>.<\/p><\/blockquote>","protected":false},"excerpt":{"rendered":"<p>Compare high-temperature thermoplastics like PBT, LCP, PA66 &#038; PEEK for RJ45 connectors. Learn material limits, soldering compatibility, and best use cases.<\/p>","protected":false},"author":1,"featured_media":5600,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"footnotes":""},"categories":[1],"tags":[22,25],"class_list":["post-5601","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-knowledge-center","tag-integrated-rj45-connectors","tag-modular-jack"],"blocksy_meta":[],"acf":[],"_links":{"self":[{"href":"https:\/\/lp.szlogic.cn\/ru\/wp-json\/wp\/v2\/posts\/5601","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/lp.szlogic.cn\/ru\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/lp.szlogic.cn\/ru\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/lp.szlogic.cn\/ru\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/lp.szlogic.cn\/ru\/wp-json\/wp\/v2\/comments?post=5601"}],"version-history":[{"count":2,"href":"https:\/\/lp.szlogic.cn\/ru\/wp-json\/wp\/v2\/posts\/5601\/revisions"}],"predecessor-version":[{"id":7519,"href":"https:\/\/lp.szlogic.cn\/ru\/wp-json\/wp\/v2\/posts\/5601\/revisions\/7519"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/lp.szlogic.cn\/ru\/wp-json\/wp\/v2\/media\/5600"}],"wp:attachment":[{"href":"https:\/\/lp.szlogic.cn\/ru\/wp-json\/wp\/v2\/media?parent=5601"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/lp.szlogic.cn\/ru\/wp-json\/wp\/v2\/categories?post=5601"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/lp.szlogic.cn\/ru\/wp-json\/wp\/v2\/tags?post=5601"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}