{"id":5824,"date":"2026-04-22T15:52:33","date_gmt":"2026-04-22T07:52:33","guid":{"rendered":"https:\/\/txjpcba.com\/?p=5824"},"modified":"2026-04-22T18:16:03","modified_gmt":"2026-04-22T10:16:03","slug":"what-is-mixed-pcb-assembly","status":"publish","type":"post","link":"https:\/\/txjpcba.com\/ja\/what-is-mixed-pcb-assembly\/","title":{"rendered":"\u6df7\u5408PCB\u30a2\u30bb\u30f3\u30d6\u30ea\u3068\u306f\u4f55\u3067\u3059\u304b\uff1f"},"content":{"rendered":"<h2 data-start=\"0\" data-end=\"31\"><strong data-start=\"0\" data-end=\"31\">Mixed PCB Assembly<\/strong><\/h2>\n<p data-start=\"33\" data-end=\"373\">Mixed PCB Assembly is a manufacturing approach that combines both <strong data-start=\"99\" data-end=\"142\"><a href=\"https:\/\/txjpcba.com\/ja\/smt%e3%82%a2%e3%82%bb%e3%83%b3%e3%83%96%e3%83%aa%e3%83%bc%e3%82%b5%e3%83%bc%e3%83%93%e3%82%b9\/\">SMT\u30a2\u30bb\u30f3\u30d6\u30ea<\/a> (Surface Mount Technology)<\/strong> and through-hole technology (THT) on the same printed circuit board. In modern <a href=\"https:\/\/txjpcba.com\/ja\/pcb%e3%82%a2%e3%82%bb%e3%83%b3%e3%83%96%e3%83%aa\/\"><strong data-start=\"222\" data-end=\"238\">PCB\u30a2\u30bb\u30f3\u30d6\u30ea<\/strong><\/a>, this hybrid method is widely used to achieve the best balance between compact design, production efficiency, and mechanical strength.<\/p>\n<p data-start=\"375\" data-end=\"597\">Instead of relying on a single assembly method, mixed PCB Assembly integrates the advantages of SMT Assembly\u2014such as high-speed automation and miniaturization\u2014with the durability and reliability of through-hole components.<\/p>\n<figure id=\"attachment_5874\" aria-describedby=\"caption-attachment-5874\" style=\"width: 800px\" class=\"wp-caption aligncenter\"><img fetchpriority=\"high\" decoding=\"async\" class=\"size-full wp-image-5874\" src=\"https:\/\/txjpcba.com\/wp-content\/uploads\/2026\/04\/What-is-mixed-PCB-assembly.jpg\" alt=\"\u6df7\u5408PCB\u30a2\u30bb\u30f3\u30d6\u30ea\u3068\u306f\" width=\"800\" height=\"597\" srcset=\"https:\/\/txjpcba.com\/wp-content\/uploads\/2026\/04\/What-is-mixed-PCB-assembly.jpg 800w, https:\/\/txjpcba.com\/wp-content\/uploads\/2026\/04\/What-is-mixed-PCB-assembly-300x224.jpg 300w, https:\/\/txjpcba.com\/wp-content\/uploads\/2026\/04\/What-is-mixed-PCB-assembly-768x573.jpg 768w, https:\/\/txjpcba.com\/wp-content\/uploads\/2026\/04\/What-is-mixed-PCB-assembly-16x12.jpg 16w\" sizes=\"(max-width: 800px) 100vw, 800px\" \/><figcaption id=\"caption-attachment-5874\" class=\"wp-caption-text\">\u6df7\u5408PCB\u30a2\u30bb\u30f3\u30d6\u30ea\u3068\u306f<\/figcaption><\/figure>\n<h2 data-section-id=\"1ij2cdp\" data-start=\"599\" data-end=\"629\">Why Use Mixed PCB Assembly?<\/h2>\n<p data-start=\"631\" data-end=\"861\">In real-world electronic designs, not all components are suitable for SMT Assembly. While small and lightweight components work well with surface mounting, larger or high-power components often require stronger mechanical support.<\/p>\n<p data-start=\"863\" data-end=\"895\">Mixed PCB Assembly is used when:<\/p>\n<ul data-start=\"897\" data-end=\"1190\">\n<li data-section-id=\"18mq062\" data-start=\"897\" data-end=\"981\">The design includes both SMD (surface mount devices) and through-hole components<\/li>\n<li data-section-id=\"1pepm4g\" data-start=\"982\" data-end=\"1055\">High mechanical strength is required (e.g., connectors, transformers)<\/li>\n<li data-section-id=\"19tl3wi\" data-start=\"1056\" data-end=\"1118\">The product must withstand vibration or harsh environments<\/li>\n<li data-section-id=\"jdohzo\" data-start=\"1119\" data-end=\"1190\">Electrical performance and structural reliability are both critical<\/li>\n<\/ul>\n<p data-start=\"1192\" data-end=\"1288\">This makes mixed PCB Assembly a practical solution for complex and high-performance electronics.<\/p>\n<h2 data-section-id=\"1bvc724\" data-start=\"1290\" data-end=\"1319\">Mixed PCB Assembly Process<\/h2>\n<p data-start=\"1321\" data-end=\"1432\">The mixed PCB Assembly process typically follows a carefully planned sequence to ensure quality and efficiency:<\/p>\n<p data-start=\"1434\" data-end=\"1629\"><strong data-start=\"1434\" data-end=\"1456\">SMT Assembly First<\/strong><br data-start=\"1456\" data-end=\"1459\" \/>In most cases, SMT Assembly is performed first. Solder paste is applied, components are placed using pick-and-place machines, and the board goes through reflow soldering.<\/p>\n<p data-start=\"1631\" data-end=\"1816\"><strong data-start=\"1631\" data-end=\"1667\">Through-Hole Component Insertion<\/strong><br data-start=\"1667\" data-end=\"1670\" \/>After SMT Assembly, through-hole components are inserted into pre-drilled holes. This can be done manually or using automated insertion equipment.<\/p>\n<p data-start=\"1818\" data-end=\"2007\"><strong data-start=\"1818\" data-end=\"1859\">Wave Soldering or Selective Soldering<\/strong><br data-start=\"1859\" data-end=\"1862\" \/>Through-hole components are soldered using wave soldering or selective soldering techniques, depending on the design and production requirements.<\/p>\n<p data-start=\"2009\" data-end=\"2230\"><strong data-start=\"2009\" data-end=\"2035\">Inspection and Testing<\/strong><br data-start=\"2035\" data-end=\"2038\" \/>The final PCB Assembly undergoes inspection processes such as AOI, X-ray inspection, and functional testing to ensure all components are correctly installed and the board operates as intended.<\/p>\n<p align=\"center\"><a href=\"\/ja\/%e3%83%97%e3%83%aa%e3%83%b3%e3%83%88%e5%9f%ba%e6%9d%bf%e3%82%a2%e3%82%bb%e3%83%b3%e3%83%96%e3%83%aa%e3%81%ae%e8%a6%8b%e7%a9%8d%e3%82%82%e3%82%8a%e3%82%92%e5%8f%96%e3%82%8b\/\"><button style=\"background: black; color: white; padding: 8px 20px; border: none; cursor: pointer;\">PCB\u30a2\u30bb\u30f3\u30d6\u30ea\u306e\u304a\u898b\u7a4d\u3082\u308a<\/button><\/a><\/p>\n<h2 data-section-id=\"1qk7nd2\" data-start=\"2232\" data-end=\"2267\">Advantages of Mixed PCB Assembly<\/h2>\n<p data-start=\"2269\" data-end=\"2322\">Mixed PCB Assembly offers several important benefits:<\/p>\n<p data-start=\"2324\" data-end=\"2468\"><strong data-start=\"2324\" data-end=\"2346\">Design Flexibility<\/strong><br data-start=\"2346\" data-end=\"2349\" \/>Engineers can choose the most suitable mounting method for each component, optimizing both performance and reliability.<\/p>\n<p data-start=\"2470\" data-end=\"2597\"><strong data-start=\"2470\" data-end=\"2502\">Improved Mechanical Strength<\/strong><br data-start=\"2502\" data-end=\"2505\" \/>Through-hole components provide strong anchoring, especially for connectors and heavy parts.<\/p>\n<p data-start=\"2599\" data-end=\"2734\"><strong data-start=\"2599\" data-end=\"2618\">High Efficiency<\/strong><br data-start=\"2618\" data-end=\"2621\" \/>SMT Assembly ensures fast and automated placement of smaller components, improving overall production efficiency.<\/p>\n<p data-start=\"2736\" data-end=\"2874\"><strong data-start=\"2736\" data-end=\"2760\">Enhanced Reliability<\/strong><br data-start=\"2760\" data-end=\"2763\" \/>Combining both technologies results in a more robust and durable product, especially in demanding environments.<\/p>\n<h2 data-section-id=\"z6dyvi\" data-start=\"2876\" data-end=\"2911\">Challenges of Mixed PCB Assembly<\/h2>\n<p data-start=\"2913\" data-end=\"2996\">While mixed PCB Assembly is highly effective, it also introduces some complexities:<\/p>\n<ul data-start=\"2998\" data-end=\"3219\">\n<li data-section-id=\"1c5852j\" data-start=\"2998\" data-end=\"3070\">More complicated manufacturing process compared to pure SMT Assembly<\/li>\n<li data-section-id=\"14pp5x7\" data-start=\"3071\" data-end=\"3123\">Requires careful process planning and sequencing<\/li>\n<li data-section-id=\"fmhmft\" data-start=\"3124\" data-end=\"3181\">Higher production cost due to multiple assembly steps<\/li>\n<li data-section-id=\"s9kxiy\" data-start=\"3182\" data-end=\"3219\">Increased inspection requirements<\/li>\n<\/ul>\n<p data-start=\"3221\" data-end=\"3349\">Manufacturers must have strong expertise in both PCB Assembly and SMT Assembly to successfully manage mixed technology projects.<\/p>\n<h2 data-section-id=\"f55f1w\" data-start=\"3351\" data-end=\"3393\">Mixed PCB Assembly vs Pure SMT Assembly<\/h2>\n<p data-start=\"3395\" data-end=\"3418\"><strong data-start=\"3395\" data-end=\"3418\">Mixed PCB Assembly:<\/strong><\/p>\n<ul data-start=\"3420\" data-end=\"3603\">\n<li data-section-id=\"mnajvn\" data-start=\"3420\" data-end=\"3471\">Combines SMT Assembly and through-hole assembly<\/li>\n<li data-section-id=\"wvl2rh\" data-start=\"3472\" data-end=\"3509\">Offers better mechanical strength<\/li>\n<li data-section-id=\"l3x8nv\" data-start=\"3510\" data-end=\"3563\">Suitable for complex and high-reliability designs<\/li>\n<li data-section-id=\"11aw50t\" data-start=\"3564\" data-end=\"3603\">Slightly higher cost and complexity<\/li>\n<\/ul>\n<p data-start=\"3605\" data-end=\"3627\"><strong data-start=\"3605\" data-end=\"3627\">SMT Assembly Only:<\/strong><\/p>\n<ul data-start=\"3629\" data-end=\"3818\">\n<li data-section-id=\"4aywqs\" data-start=\"3629\" data-end=\"3669\">Uses only surface-mounted components<\/li>\n<li data-section-id=\"1gvy1w7\" data-start=\"3670\" data-end=\"3722\">Faster and more cost-effective for large volumes<\/li>\n<li data-section-id=\"uo6ye6\" data-start=\"3723\" data-end=\"3765\">Ideal for compact consumer electronics<\/li>\n<li data-section-id=\"6amrag\" data-start=\"3766\" data-end=\"3818\">Limited mechanical strength for large components<\/li>\n<\/ul>\n<h2 data-section-id=\"ttv54n\" data-start=\"3820\" data-end=\"3857\">Applications of Mixed PCB Assembly<\/h2>\n<p data-start=\"3859\" data-end=\"3961\">Mixed PCB Assembly is commonly used in industries where both performance and durability are essential:<\/p>\n<ul data-start=\"3963\" data-end=\"4141\">\n<li data-section-id=\"ctzb40\" data-start=\"3963\" data-end=\"4009\">Automotive electronics and control systems<\/li>\n<li data-section-id=\"1me5um2\" data-start=\"4010\" data-end=\"4045\">Industrial automation equipment<\/li>\n<li data-section-id=\"o96z31\" data-start=\"4046\" data-end=\"4083\">Power supplies and energy systems<\/li>\n<li data-section-id=\"hfuu7c\" data-start=\"4084\" data-end=\"4103\">\u533b\u7642\u6a5f\u5668<\/li>\n<li data-section-id=\"vhcq45\" data-start=\"4104\" data-end=\"4141\">\u822a\u7a7a\u5b87\u5b99\u30fb\u9632\u885b\u30a8\u30ec\u30af\u30c8\u30ed\u30cb\u30af\u30b9<\/li>\n<\/ul>\n<p data-start=\"4143\" data-end=\"4243\">These applications often require a combination of compact circuitry and robust physical connections.<\/p>\n<h2 data-section-id=\"1csjoyu\" data-start=\"4245\" data-end=\"4275\">Role in Modern PCB Assembly<\/h2>\n<p data-start=\"4277\" data-end=\"4496\">As electronic products become more advanced, mixed PCB Assembly has become increasingly important. It allows manufacturers to leverage the speed of SMT Assembly while maintaining the strength of through-hole components.<\/p>\n<p data-start=\"4498\" data-end=\"4641\">Many modern PCB Assembly projects are no longer purely SMT-based but instead rely on mixed technology to meet demanding technical requirements.<\/p>\n<h2 data-section-id=\"8dtpi\" data-start=\"4643\" data-end=\"4656\">\u7d50\u8ad6<\/h2>\n<p data-start=\"4658\" data-end=\"4950\">Mixed PCB Assembly is a hybrid approach that combines SMT Assembly and through-hole technology to create high-performance, reliable, and durable electronic products. By integrating the strengths of both methods, it offers the flexibility needed for complex designs and demanding applications.<\/p>\n<p data-start=\"4952\" data-end=\"5096\">For companies seeking optimized performance and reliability, mixed PCB Assembly is often the best solution within modern PCB Assembly processes.<\/p>\n<p align=\"center\"><a href=\"\/ja\/%e3%83%97%e3%83%aa%e3%83%b3%e3%83%88%e5%9f%ba%e6%9d%bf%e3%82%a2%e3%82%bb%e3%83%b3%e3%83%96%e3%83%aa%e3%81%ae%e8%a6%8b%e7%a9%8d%e3%82%82%e3%82%8a%e3%82%92%e5%8f%96%e3%82%8b\/\"><button style=\"background: black; color: white; padding: 8px 20px; border: none; cursor: pointer;\">PCB\u30a2\u30bb\u30f3\u30d6\u30ea\u306e\u304a\u898b\u7a4d\u3082\u308a<\/button><\/a><\/p>\n<p style=\"text-align: center;\">Need help with PCB assembly pricing and lead time? Request your quote today.<br \/>\nSMT\u3001DIP\u3001\u30d5\u30eb\u30bf\u30fc\u30f3\u30ad\u30fc\u30bd\u30ea\u30e5\u30fc\u30b7\u30e7\u30f3\u3092\u542b\u3080\u30d7\u30ed\u30d5\u30a7\u30c3\u30b7\u30e7\u30ca\u30eb\u306aPCB\u30a2\u30bb\u30f3\u30d6\u30ea\u30b5\u30fc\u30d3\u30b9\u3092\u63d0\u4f9b\u3057\u307e\u3059\u3002.<\/p>\n<p style=\"text-align: center;\">\u5229\u7528\u3067\u304d\u308b NDA \u2714 24 \u6642\u9593\u4ee5\u5185\u306e\u901f\u3044\u5f15\u7528\u8a9e\u53e5 \u2714 ISO \u306b\u3088\u3063\u3066\u8a3c\u660e\u3055\u308c\u308b\u5de5\u5834 \u2714 \u30ef\u30f3\u30b9\u30c8\u30c3\u30d7 PCB \u53ca\u3073 PCBA \u30b5\u30fc\u30d3\u30b9<\/p>","protected":false},"excerpt":{"rendered":"<p>Mixed PCB Assembly Mixed PCB Assembly is a manufacturing approach that combines both SMT Assembly (Surface Mount Technology) and through-hole [&hellip;]<\/p>","protected":false},"author":1,"featured_media":5874,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"site-sidebar-layout":"default","site-content-layout":"","ast-site-content-layout":"default","site-content-style":"default","site-sidebar-style":"default","ast-global-header-display":"","ast-banner-title-visibility":"","ast-main-header-display":"","ast-hfb-above-header-display":"","ast-hfb-below-header-display":"","ast-hfb-mobile-header-display":"","site-post-title":"","ast-breadcrumbs-content":"","ast-featured-img":"","footer-sml-layout":"","theme-transparent-header-meta":"default","adv-header-id-meta":"","stick-header-meta":"","header-above-stick-meta":"","header-main-stick-meta":"","header-below-stick-meta":"","astra-migrate-meta-layouts":"set","ast-page-background-enabled":"default","ast-page-background-meta":{"desktop":{"background-color":"var(--ast-global-color-5)","background-image":"","background-repeat":"repeat","background-position":"center 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center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""}},"footnotes":""},"categories":[71,445],"tags":[153,853,851,60,824,64,137,850,852],"class_list":["post-5824","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-faqs","category-pcb-assembly-faqs","tag-electronics-manufacturing","tag-hybrid-pcb-assembly","tag-mixed-pcb-assembly","tag-pcb-assembly","tag-pcb-assembly-process","tag-smt-assembly","tag-smt-pcb-assembly","tag-smt-vs-tht","tag-through-hole-assembly"],"_links":{"self":[{"href":"https:\/\/txjpcba.com\/ja\/wp-json\/wp\/v2\/posts\/5824","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/txjpcba.com\/ja\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/txjpcba.com\/ja\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/txjpcba.com\/ja\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/txjpcba.com\/ja\/wp-json\/wp\/v2\/comments?post=5824"}],"version-history":[{"count":2,"href":"https:\/\/txjpcba.com\/ja\/wp-json\/wp\/v2\/posts\/5824\/revisions"}],"predecessor-version":[{"id":5916,"href":"https:\/\/txjpcba.com\/ja\/wp-json\/wp\/v2\/posts\/5824\/revisions\/5916"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/txjpcba.com\/ja\/wp-json\/wp\/v2\/media\/5874"}],"wp:attachment":[{"href":"https:\/\/txjpcba.com\/ja\/wp-json\/wp\/v2\/media?parent=5824"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/txjpcba.com\/ja\/wp-json\/wp\/v2\/categories?post=5824"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/txjpcba.com\/ja\/wp-json\/wp\/v2\/tags?post=5824"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}