{"id":1659,"date":"2026-03-28T09:17:02","date_gmt":"2026-03-28T01:17:02","guid":{"rendered":"https:\/\/jkrglo.com\/?p=1659"},"modified":"2026-10-23T13:55:41","modified_gmt":"2026-10-23T05:55:41","slug":"what-is-the-3w-rule-in-pcb","status":"publish","type":"post","link":"https:\/\/jkrglo.com\/de\/what-is-the-3w-rule-in-pcb\/","title":{"rendered":"What is the 3W rule in PCB?"},"content":{"rendered":"\t\t<div data-elementor-type=\"wp-post\" data-elementor-id=\"1659\" class=\"elementor elementor-1659\" data-elementor-post-type=\"post\">\n\t\t\t\t<div class=\"elementor-element elementor-element-2197b92e e-flex e-con-boxed e-con e-parent\" data-id=\"2197b92e\" data-element_type=\"container\" data-e-type=\"container\">\n\t\t\t\t\t<div class=\"e-con-inner\">\n\t\t<div class=\"elementor-element elementor-element-63d9be44 e-con-full e-flex e-con e-child\" data-id=\"63d9be44\" data-element_type=\"container\" data-e-type=\"container\">\n\t\t\t\t<div class=\"elementor-element elementor-element-23e7bd4e elementor-widget elementor-widget-breadcrumbs\" data-id=\"23e7bd4e\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"breadcrumbs.default\">\n\t\t\t\t\t<p id=\"breadcrumbs\"><span><span><a href=\"https:\/\/jkrglo.com\/\">HOME<\/a><\/span><\/span><\/p>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t<div class=\"elementor-element elementor-element-24a9843c e-flex e-con-boxed e-con e-parent\" data-id=\"24a9843c\" data-element_type=\"container\" data-e-type=\"container\">\n\t\t\t\t\t<div class=\"e-con-inner\">\n\t\t<div class=\"elementor-element elementor-element-3d8692ff e-con-full e-flex e-con e-child\" data-id=\"3d8692ff\" data-element_type=\"container\" data-e-type=\"container\">\n\t\t<div class=\"elementor-element elementor-element-1558e31d e-con-full e-flex e-con e-child\" data-id=\"1558e31d\" data-element_type=\"container\" data-e-type=\"container\">\n\t\t\t\t<div class=\"elementor-element elementor-element-750f0992 elementor-widget elementor-widget-heading\" data-id=\"750f0992\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"heading.default\">\n\t\t\t\t\t<h1 class=\"elementor-heading-title elementor-size-default\">The 3W Rule in PCB Design: Why 90% of Engineers Get It Wrong (And How To Fix It)<\/h1>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t<div class=\"elementor-element elementor-element-2f148d1d e-con-full e-flex e-con e-child\" data-id=\"2f148d1d\" data-element_type=\"container\" data-e-type=\"container\">\n\t\t<div class=\"elementor-element elementor-element-1572d357 e-con-full e-flex e-con e-child\" data-id=\"1572d357\" data-element_type=\"container\" data-e-type=\"container\">\n\t\t\t\t<div class=\"elementor-element elementor-element-573558fb elementor-widget elementor-widget-post-info\" data-id=\"573558fb\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"post-info.default\">\n\t\t\t\t\t\t\t<ul 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data-settings=\"{&quot;background_background&quot;:&quot;classic&quot;}\">\n\t\t\t\t<\/div>\n\t\t<div class=\"elementor-element elementor-element-5f95b952 e-con-full e-flex e-con e-child\" data-id=\"5f95b952\" data-element_type=\"container\" data-e-type=\"container\">\n\t\t<div class=\"elementor-element elementor-element-16bb70ed e-con-full e-flex e-con e-child\" data-id=\"16bb70ed\" data-element_type=\"container\" data-e-type=\"container\">\n\t\t\t\t<div class=\"elementor-element elementor-element-63347ff4 elementor-widget elementor-widget-text-editor\" data-id=\"63347ff4\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t\t\t\t\t\t<div data-page-id=\"On0jfNld3d6I7ecMLyzcfgHXnYb\" data-lark-html-role=\"root\" data-docx-has-block-data=\"false\">\n<div class=\"ace-line ace-line old-record-id-AX0efyGQXdVFtFcRvpnc2pLmnoB\">\n<div data-page-id=\"On0jfNld3d6I7ecMLyzcfgHXnYb\" data-lark-html-role=\"root\" data-docx-has-block-data=\"false\">\n<div class=\"ace-line ace-line old-record-id-AX0efyGQXdVFtFcRvpnc2pLmnoB\">The <a href=\"https:\/\/jkrglo.com\/fr4-pcb\/\">PCB<\/a> 3W rule is a simple spacing guideline answering <em>What is the 3W rule in PCB?<\/em>: keep the distance between the centers of adjacent high-speed traces at least 3x the trace width. It cuts crosstalk by ~70% in most designs, but it\u2019s not a one-size-fits-all fix\u2014blindly following it will waste board space or fail in high-frequency applications.<\/div>\n<\/div>\n<\/div>\n<\/div>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t<div class=\"elementor-element elementor-element-4227374 e-con-full e-flex e-con e-child\" data-id=\"4227374\" data-element_type=\"container\" data-e-type=\"container\">\n\t\t<div class=\"elementor-element elementor-element-5a531e8 e-con-full e-flex e-con e-child\" data-id=\"5a531e8\" data-element_type=\"container\" data-e-type=\"container\">\n\t\t\t\t<div class=\"elementor-element elementor-element-8d9cf1a elementor-widget elementor-widget-text-editor\" data-id=\"8d9cf1a\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t\t\t\t\t\t<div data-page-id=\"On0jfNld3d6I7ecMLyzcfgHXnYb\" data-lark-html-role=\"root\" data-docx-has-block-data=\"false\">\n<div class=\"ace-line ace-line old-record-id-AX0efyGQXdVFtFcRvpnc2pLmnoB\">\n<div data-page-id=\"On0jfNld3d6I7ecMLyzcfgHXnYb\" data-lark-html-role=\"root\" data-docx-has-block-data=\"false\">\n<div class=\"ace-line ace-line old-record-id-AX0efyGQXdVFtFcRvpnc2pLmnoB\">After 10 years debugging signal integrity failures on production lines, I\u2019ve seen one mistake repeat more than any other: engineers either ignore the 3W rule entirely, or treat it like an unbreakable law of physics. Both will cost you time, money, and a whole lot of late nights re-spinning boards. If you\u2019re new to the fundamentals and need a refresher on core PCB structure, check out our previous post: <a href=\"https:\/\/jkrglo.com\/what-is-the-pcb-board\/\"><em>What is the PCB board?<\/em><\/a> before diving deeper.<\/div>\n<\/div>\n<\/div>\n<\/div>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t<div class=\"elementor-element elementor-element-49cdd19 e-con-full e-flex e-con e-child\" data-id=\"49cdd19\" data-element_type=\"container\" data-e-type=\"container\" data-settings=\"{&quot;background_background&quot;:&quot;classic&quot;}\">\n\t\t\t\t<div class=\"elementor-element elementor-element-10fe561 elementor-widget-divider--view-line elementor-widget elementor-widget-divider\" data-id=\"10fe561\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"divider.default\">\n\t\t\t\t\t\t\t<div class=\"elementor-divider\">\n\t\t\t<span class=\"elementor-divider-separator\">\n\t\t\t\t\t\t<\/span>\n\t\t<\/div>\n\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t<div class=\"elementor-element elementor-element-19da297d e-con-full e-flex e-con e-child\" data-id=\"19da297d\" data-element_type=\"container\" data-e-type=\"container\">\n\t\t<div class=\"elementor-element elementor-element-13091022 e-con-full e-flex e-con e-child\" data-id=\"13091022\" data-element_type=\"container\" data-e-type=\"container\">\n\t\t\t\t<div class=\"elementor-element elementor-element-35e03e28 elementor-widget elementor-widget-heading\" data-id=\"35e03e28\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"heading.default\">\n\t\t\t\t\t<h2 class=\"elementor-heading-title elementor-size-default\">Why Most People Get The 3W Rule Wrong<\/h2>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t<div class=\"elementor-element elementor-element-50ae7fa3 e-con-full e-flex e-con e-child\" data-id=\"50ae7fa3\" data-element_type=\"container\" data-e-type=\"container\">\n\t\t<div class=\"elementor-element elementor-element-71158c07 e-con-full e-flex e-con e-child\" data-id=\"71158c07\" data-element_type=\"container\" data-e-type=\"container\">\n\t\t\t\t<div class=\"elementor-element elementor-element-1a48eb27 elementor-widget elementor-widget-text-editor\" data-id=\"1a48eb27\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t\t\t\t\t\t<div data-page-id=\"On0jfNld3d6I7ecMLyzcfgHXnYb\" data-lark-html-role=\"root\" data-docx-has-block-data=\"false\">\n<div class=\"ace-line ace-line old-record-id-AX0efyGQXdVFtFcRvpnc2pLmnoB\">\n<div data-page-id=\"On0jfNld3d6I7ecMLyzcfgHXnYb\" data-lark-html-role=\"root\" data-docx-has-block-data=\"false\">\n<div class=\"ace-line ace-line old-record-id-BT5kfhWgHdywXVcMVz8cJIr1nGg\">Here\u2019s the thing no textbook tells you: the 3W rule wasn\u2019t invented to be a design mandate. It was a quick, back-of-the-napkin guideline from the 1990s, when most high-speed designs topped out at 100Mbps. It still works, but only if you understand what it\u2019s actually doing.<\/div>\n<\/div>\n<\/div>\n<\/div>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t<div class=\"elementor-element elementor-element-788880b e-con-full e-flex e-con e-child\" data-id=\"788880b\" data-element_type=\"container\" data-e-type=\"container\">\n\t\t<div class=\"elementor-element elementor-element-8f14f58 e-con-full e-flex e-con e-child\" data-id=\"8f14f58\" data-element_type=\"container\" data-e-type=\"container\">\n\t\t\t\t<div class=\"elementor-element elementor-element-3f520f3 elementor-widget elementor-widget-text-editor\" data-id=\"3f520f3\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t\t\t\t\t\t<div data-page-id=\"On0jfNld3d6I7ecMLyzcfgHXnYb\" data-lark-html-role=\"root\" data-docx-has-block-data=\"false\">\n<div class=\"ace-line ace-line old-record-id-AX0efyGQXdVFtFcRvpnc2pLmnoB\">\n<div data-page-id=\"On0jfNld3d6I7ecMLyzcfgHXnYb\" data-lark-html-role=\"root\" data-docx-has-block-data=\"false\">\n<div class=\"ace-line ace-line old-record-id-BT5kfhWgHdywXVcMVz8cJIr1nGg\">\n<p data-path-to-node=\"6\">The rule targets electromagnetic field coupling between traces. About 70% of a trace\u2019s electric field is contained within a 3x width area around the trace. Space traces outside that, and you eliminate most crosstalk. But if your reference plane is broken, that field spreads everywhere, and 3W spacing does nothing. I\u2019ve seen engineers spend weeks tweaking trace spacing, only to ignore a 0.5mm split in the ground plane that\u2019s causing 90% of their crosstalk. It\u2019s like locking your front door but leaving the window wide open.<\/p>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t<div class=\"elementor-element elementor-element-b7d6ffd e-con-full e-flex e-con e-child\" data-id=\"b7d6ffd\" data-element_type=\"container\" data-e-type=\"container\">\n\t\t<div class=\"elementor-element elementor-element-0d4deb9 e-con-full e-flex e-con e-child\" data-id=\"0d4deb9\" data-element_type=\"container\" data-e-type=\"container\">\n\t\t\t\t<div class=\"elementor-element elementor-element-3ea45ff elementor-widget elementor-widget-text-editor\" data-id=\"3ea45ff\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t\t\t\t\t\t<div data-page-id=\"On0jfNld3d6I7ecMLyzcfgHXnYb\" data-lark-html-role=\"root\" data-docx-has-block-data=\"false\">\n<div class=\"ace-line ace-line old-record-id-AX0efyGQXdVFtFcRvpnc2pLmnoB\">\n<div data-page-id=\"On0jfNld3d6I7ecMLyzcfgHXnYb\" data-lark-html-role=\"root\" data-docx-has-block-data=\"false\">\n<div class=\"ace-line ace-line old-record-id-BT5kfhWgHdywXVcMVz8cJIr1nGg\">\n<p data-path-to-node=\"6\">Last year, a client brought in a failing automotive telematics design. Their team had followed the 3W rule to the letter for every high-speed CAN-FD trace, but 12% of their prototype boards failed EMC testing, and signal dropouts happened at temperatures above 85\u00b0C. When we pulled up the layout, the problem was obvious:<\/p>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t<div class=\"elementor-element elementor-element-de32a33 e-con-full e-flex e-con e-child\" data-id=\"de32a33\" data-element_type=\"container\" data-e-type=\"container\">\n\t\t<div class=\"elementor-element elementor-element-a3bb03e e-con-full e-flex e-con e-child\" data-id=\"a3bb03e\" data-element_type=\"container\" data-e-type=\"container\">\n\t\t\t\t<div class=\"elementor-element elementor-element-fec7d78 elementor-widget elementor-widget-text-editor\" data-id=\"fec7d78\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t\t\t\t\t\t<div data-page-id=\"On0jfNld3d6I7ecMLyzcfgHXnYb\" data-lark-html-role=\"root\" data-docx-has-block-data=\"false\">\n<div class=\"ace-line ace-line old-record-id-AX0efyGQXdVFtFcRvpnc2pLmnoB\">\n<div data-page-id=\"On0jfNld3d6I7ecMLyzcfgHXnYb\" data-lark-html-role=\"root\" data-docx-has-block-data=\"false\">\n<div class=\"ace-line ace-line old-record-id-BT5kfhWgHdywXVcMVz8cJIr1nGg\">\n<p data-path-to-node=\"6\">they\u2019d applied 3W spacing to every trace, even low-speed GPIO lines, wasting 18% of the board space that could have gone to a solid ground plane. Worse, they\u2019d ignored that the 3W rule only works when your traces have a continuous reference plane\u2014theirs had a split in the ground plane directly under the high-speed lines, making the 3W spacing completely useless. We fixed the layout in 2 days, re-spun the boards, and had 0 failures in the next batch.<\/p>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t<div class=\"elementor-element elementor-element-14594a6 e-con-full e-flex e-con e-child\" data-id=\"14594a6\" data-element_type=\"container\" data-e-type=\"container\">\n\t\t<div class=\"elementor-element elementor-element-ffb61e0 e-con-full e-flex e-con e-child\" data-id=\"ffb61e0\" data-element_type=\"container\" data-e-type=\"container\">\n\t\t\t\t<div class=\"elementor-element elementor-element-fafce3e elementor-widget elementor-widget-heading\" data-id=\"fafce3e\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"heading.default\">\n\t\t\t\t\t<h2 class=\"elementor-heading-title elementor-size-default\">Correct vs. Misused 3W Rule: Core Differences<\/h2>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t<div class=\"elementor-element elementor-element-d5d7f90 e-con-full e-flex e-con e-child\" data-id=\"d5d7f90\" data-element_type=\"container\" data-e-type=\"container\">\n\t\t\t\t<div class=\"elementor-element elementor-element-d8050a8 elementor-widget elementor-widget-shortcode\" data-id=\"d8050a8\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"shortcode.default\">\n\t\t\t\t\t\t\t<div class=\"elementor-shortcode\">\n<div class=\"wpdt-c row wpDataTableContainerSimpleTable wpDataTables wpDataTablesWrapper\n\"\n    >\n        <table id=\"wpdtSimpleTable-29\"\n           style=\"border-collapse:collapse;\n                   border-spacing:0px;\"\n           class=\"wpdtSimpleTable wpDataTable\"\n           data-column=\"3\"\n           data-rows=\"5\"\n           data-wpID=\"29\"\n           data-responsive=\"0\"\n           data-has-header=\"1\">\n\n                    <thead>        <tr class=\"wpdt-cell-row \" >\n                                <th class=\"wpdt-cell wpdt-align-left wpdt-bold\"\n                                            data-cell-id=\"A1\"\n                    data-col-index=\"0\"\n                    data-row-index=\"0\"\n                    style=\" width:33.333333333333%;                    padding:10px;\n                    \"\n                    >\n                                        Scenario                    <\/th>\n                                                <th class=\"wpdt-cell wpdt-align-left wpdt-bold\"\n                                            data-cell-id=\"B1\"\n                    data-col-index=\"1\"\n                    data-row-index=\"0\"\n                    style=\" width:33.333333333333%;                    padding:10px;\n                    \"\n                    >\n                                        3W Rule Applied Correctly                    <\/th>\n                                                <th class=\"wpdt-cell wpdt-align-left wpdt-bold\"\n                                            data-cell-id=\"C1\"\n                    data-col-index=\"2\"\n                    data-row-index=\"0\"\n                    style=\" width:33.333333333333%;                    padding:10px;\n                    \"\n                    >\n                                        3W Rule Misapplied                    <\/th>\n                                        <\/tr>\n                    <tbody>        <tr class=\"wpdt-cell-row \" >\n                                <td class=\"wpdt-cell wpdt-align-left\"\n                                            data-cell-id=\"A2\"\n                    data-col-index=\"0\"\n                    data-row-index=\"1\"\n                    style=\"                    padding:10px;\n                    \"\n                    >\n                                        High-Speed Single-Ended Traces (100Mbps - 10Gbps)                    <\/td>\n                                                <td class=\"wpdt-cell wpdt-align-left\"\n                                            data-cell-id=\"B2\"\n                    data-col-index=\"1\"\n                    data-row-index=\"1\"\n                    style=\"                    padding:10px;\n                    \"\n                    >\n                                        Spaced 3x trace width center-to-center, with continuous solid reference plane; crosstalk reduced by 65-75%                    <\/td>\n                                                <td class=\"wpdt-cell wpdt-align-left\"\n                                            data-cell-id=\"C2\"\n                    data-col-index=\"2\"\n                    data-row-index=\"1\"\n                    style=\"                    padding:10px;\n                    \"\n                    >\n                                        Spaced edge-to-edge instead of center-to-center; no reference plane; crosstalk reduction drops below 20%                    <\/td>\n                                        <\/tr>\n                            <tr class=\"wpdt-cell-row \" >\n                                <td class=\"wpdt-cell wpdt-align-left\"\n                                            data-cell-id=\"A3\"\n                    data-col-index=\"0\"\n                    data-row-index=\"2\"\n                    style=\"                    padding:10px;\n                    \"\n                    >\n                                        Differential Pairs                    <\/td>\n                                                <td class=\"wpdt-cell wpdt-align-left\"\n                                            data-cell-id=\"B3\"\n                    data-col-index=\"1\"\n                    data-row-index=\"2\"\n                    style=\"                    padding:10px;\n                    \"\n                    >\n                                        3W spacing applied between adjacent pairs, not within the pair; maintains impedance and minimizes pair-to-pair crosstalk                    <\/td>\n                                                <td class=\"wpdt-cell wpdt-align-left\"\n                                            data-cell-id=\"C3\"\n                    data-col-index=\"2\"\n                    data-row-index=\"2\"\n                    style=\"                    padding:10px;\n                    \"\n                    >\n                                        3W spacing applied within the differential pair; breaks 100ohm impedance, causes signal skew and massive EMI                    <\/td>\n                                        <\/tr>\n                            <tr class=\"wpdt-cell-row \" >\n                                <td class=\"wpdt-cell wpdt-align-left\"\n                                            data-cell-id=\"A4\"\n                    data-col-index=\"0\"\n                    data-row-index=\"3\"\n                    style=\"                    padding:10px;\n                    \"\n                    >\n                                        Low-Speed Traces (<1Mbps, GPIO, Power Control)                    <\/td>\n                                                <td class=\"wpdt-cell wpdt-align-left\"\n                                            data-cell-id=\"B4\"\n                    data-col-index=\"1\"\n                    data-row-index=\"3\"\n                    style=\"                    padding:10px;\n                    \"\n                    >\n                                        3W rule skipped entirely; uses minimal spacing to free up board space for grounding and thermal relief                    <\/td>\n                                                <td class=\"wpdt-cell wpdt-align-left\"\n                                            data-cell-id=\"C4\"\n                    data-col-index=\"2\"\n                    data-row-index=\"3\"\n                    style=\"                    padding:10px;\n                    \"\n                    >\n                                        Blind 3W spacing applied to all traces; wastes 15-25% of usable board space, increases layer count unnecessarily                    <\/td>\n                                        <\/tr>\n                            <tr class=\"wpdt-cell-row \" >\n                                <td class=\"wpdt-cell wpdt-align-left\"\n                                            data-cell-id=\"A5\"\n                    data-col-index=\"0\"\n                    data-row-index=\"4\"\n                    style=\"                    padding:10px;\n                    \"\n                    >\n                                        RF\/High-Frequency Designs (>10GHz)                    <\/td>\n                                                <td class=\"wpdt-cell wpdt-align-left\"\n                                            data-cell-id=\"B5\"\n                    data-col-index=\"1\"\n                    data-row-index=\"4\"\n                    style=\"                    padding:10px;\n                    \"\n                    >\n                                        3W rule used as a starting point, upgraded to 5W+ spacing with grounded guard traces for critical RF paths                    <\/td>\n                                                <td class=\"wpdt-cell wpdt-align-left\"\n                                            data-cell-id=\"C5\"\n                    data-col-index=\"2\"\n                    data-row-index=\"4\"\n                    style=\"                    padding:10px;\n                    \"\n                    >\n                                        3W rule treated as final design rule; insufficient isolation leads to signal loss, harmonic distortion, and EMC failures                    <\/td>\n                                        <\/tr>\n                    <\/table>\n<\/div><style id='wpdt-custom-style-29'>\n<\/style>\n<\/div>\n\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t<div class=\"elementor-element elementor-element-c9b0912 e-con-full e-flex e-con e-child\" data-id=\"c9b0912\" data-element_type=\"container\" data-e-type=\"container\">\n\t\t<div class=\"elementor-element elementor-element-fd27eae e-con-full e-flex e-con e-child\" data-id=\"fd27eae\" data-element_type=\"container\" data-e-type=\"container\">\n\t\t\t\t<div class=\"elementor-element elementor-element-385245f elementor-widget elementor-widget-heading\" data-id=\"385245f\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"heading.default\">\n\t\t\t\t\t<h2 class=\"elementor-heading-title elementor-size-default\">2026 PCB Design Trend: The Death Of The Universal 3W Rule<\/h2>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t<div class=\"elementor-element elementor-element-2622040 e-con-full e-flex e-con e-child\" data-id=\"2622040\" data-element_type=\"container\" data-e-type=\"container\">\n\t\t<div class=\"elementor-element elementor-element-97d5e23 e-con-full e-flex e-con e-child\" data-id=\"97d5e23\" data-element_type=\"container\" data-e-type=\"container\">\n\t\t\t\t<div class=\"elementor-element elementor-element-a617f17 elementor-widget elementor-widget-text-editor\" data-id=\"a617f17\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t\t\t\t\t\t<div data-page-id=\"On0jfNld3d6I7ecMLyzcfgHXnYb\" data-lark-html-role=\"root\" data-docx-has-block-data=\"false\">\n<div class=\"ace-line ace-line old-record-id-AX0efyGQXdVFtFcRvpnc2pLmnoB\">\n<div data-page-id=\"On0jfNld3d6I7ecMLyzcfgHXnYb\" data-lark-html-role=\"root\" data-docx-has-block-data=\"false\">\n<div class=\"ace-line ace-line old-record-id-BT5kfhWgHdywXVcMVz8cJIr1nGg\">\n<div data-page-id=\"On0jfNld3d6I7ecMLyzcfgHXnYb\" data-lark-html-role=\"root\" data-docx-has-block-data=\"false\">\n<div class=\"ace-line ace-line old-record-id-JXNMf5m9YdhPnjcHWBAcgeVpnjh\">\n<div data-page-id=\"On0jfNld3d6I7ecMLyzcfgHXnYb\" data-lark-html-role=\"root\" data-docx-has-block-data=\"false\">\n<div class=\"ace-line ace-line old-record-id-OgeMfov1VdTuRUc4j6dcRUSQneK\">Looking at 2026 design trends, we\u2019re seeing a clear shift in how the 3W rule is applied across the industry. Our internal data from over 200 client projects this year shows that 62% of high-volume automotive and industrial PCB designs are moving away from a universal 3W rule, and instead using dynamic spacing: 3W for mid-speed signals (1-5Gbps), 5W for 10Gbps+ high-speed lines, and 1.5W for low-speed traces.<\/div>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t<div class=\"elementor-element elementor-element-9c7958f e-con-full e-flex e-con e-child\" data-id=\"9c7958f\" data-element_type=\"container\" data-e-type=\"container\">\n\t\t<div class=\"elementor-element elementor-element-11ec3fb e-con-full e-flex e-con e-child\" data-id=\"11ec3fb\" data-element_type=\"container\" data-e-type=\"container\">\n\t\t\t\t<div class=\"elementor-element elementor-element-b8a75b7 elementor-widget elementor-widget-text-editor\" data-id=\"b8a75b7\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t\t\t\t\t\t<div data-page-id=\"On0jfNld3d6I7ecMLyzcfgHXnYb\" data-lark-html-role=\"root\" data-docx-has-block-data=\"false\">\n<div class=\"ace-line ace-line old-record-id-AX0efyGQXdVFtFcRvpnc2pLmnoB\">\n<div data-page-id=\"On0jfNld3d6I7ecMLyzcfgHXnYb\" data-lark-html-role=\"root\" data-docx-has-block-data=\"false\">\n<div class=\"ace-line ace-line old-record-id-BT5kfhWgHdywXVcMVz8cJIr1nGg\">\n<div data-page-id=\"On0jfNld3d6I7ecMLyzcfgHXnYb\" data-lark-html-role=\"root\" data-docx-has-block-data=\"false\">\n<div class=\"ace-line ace-line old-record-id-JXNMf5m9YdhPnjcHWBAcgeVpnjh\">\n<div data-page-id=\"On0jfNld3d6I7ecMLyzcfgHXnYb\" data-lark-html-role=\"root\" data-docx-has-block-data=\"false\">\n<div class=\"ace-line ace-line old-record-id-OgeMfov1VdTuRUc4j6dcRUSQneK\">This shift is driven by the rise of compact AI edge modules, which need to fit more functionality into smaller form factors while passing strict automotive EMC standards. We expect this dynamic spacing approach to become the default for 78% of commercial PCB designs by the end of 2027, as more design tools integrate AI-powered spacing recommendations that replace rigid, one-size-fits-all rules.<\/div>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t<div class=\"elementor-element elementor-element-f7831ee e-con-full e-flex e-con e-child\" data-id=\"f7831ee\" data-element_type=\"container\" data-e-type=\"container\">\n\t\t<div class=\"elementor-element elementor-element-59ea64d e-con-full e-flex e-con e-child\" data-id=\"59ea64d\" data-element_type=\"container\" data-e-type=\"container\">\n\t\t\t\t<div class=\"elementor-element elementor-element-82bf80b elementor-widget elementor-widget-heading\" data-id=\"82bf80b\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"heading.default\">\n\t\t\t\t\t<h2 class=\"elementor-heading-title elementor-size-default\">From The Production Line: The Only Time You Should Break The 3W Rule<\/h2>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t<div class=\"elementor-element elementor-element-0b83e72 e-con-full e-flex e-con e-child\" data-id=\"0b83e72\" data-element_type=\"container\" data-e-type=\"container\">\n\t\t<div class=\"elementor-element elementor-element-8ea7665 e-con-full e-flex e-con e-child\" data-id=\"8ea7665\" data-element_type=\"container\" data-e-type=\"container\">\n\t\t\t\t<div class=\"elementor-element elementor-element-11a0f12 elementor-widget elementor-widget-text-editor\" data-id=\"11a0f12\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t\t\t\t\t\t<div data-page-id=\"On0jfNld3d6I7ecMLyzcfgHXnYb\" data-lark-html-role=\"root\" data-docx-has-block-data=\"false\">\n<div class=\"ace-line ace-line old-record-id-AX0efyGQXdVFtFcRvpnc2pLmnoB\">\n<div data-page-id=\"On0jfNld3d6I7ecMLyzcfgHXnYb\" data-lark-html-role=\"root\" data-docx-has-block-data=\"false\">\n<div class=\"ace-line ace-line old-record-id-BT5kfhWgHdywXVcMVz8cJIr1nGg\">\n<div data-page-id=\"On0jfNld3d6I7ecMLyzcfgHXnYb\" data-lark-html-role=\"root\" data-docx-has-block-data=\"false\">\n<div class=\"ace-line ace-line old-record-id-JXNMf5m9YdhPnjcHWBAcgeVpnjh\">\n<div data-page-id=\"On0jfNld3d6I7ecMLyzcfgHXnYb\" data-lark-html-role=\"root\" data-docx-has-block-data=\"false\">\n<div class=\"ace-line ace-line old-record-id-OgeMfov1VdTuRUc4j6dcRUSQneK\">\n<div data-page-id=\"On0jfNld3d6I7ecMLyzcfgHXnYb\" data-lark-html-role=\"root\" data-docx-has-block-data=\"false\">\n<div class=\"ace-line ace-line old-record-id-R486f5CMedBo2ccaZjmcgnYhnmd\">\n<div data-page-id=\"On0jfNld3d6I7ecMLyzcfgHXnYb\" data-lark-html-role=\"root\" data-docx-has-block-data=\"false\">\n<div class=\"ace-line ace-line old-record-id-D4BBf2GkVdFkOGc0IepczSGdnPh\">\n<div data-page-id=\"On0jfNld3d6I7ecMLyzcfgHXnYb\" data-lark-html-role=\"root\" data-docx-has-block-data=\"false\">\n<div class=\"ace-line ace-line old-record-id-XCa0fHu0hdDCRHcHLbscFioInkf\">Let\u2019s get one thing straight: you don\u2019t need to apply the 3W rule to every trace on your board. In fact, doing so will almost always hurt your design more than it helps.<\/div>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t<div class=\"elementor-element elementor-element-fdd06d5 e-con-full e-flex e-con e-child\" data-id=\"fdd06d5\" data-element_type=\"container\" data-e-type=\"container\">\n\t\t<div class=\"elementor-element elementor-element-a519772 e-con-full e-flex e-con e-child\" data-id=\"a519772\" data-element_type=\"container\" data-e-type=\"container\">\n\t\t\t\t<div class=\"elementor-element elementor-element-306d291 elementor-widget elementor-widget-text-editor\" data-id=\"306d291\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t\t\t\t\t\t<div data-page-id=\"On0jfNld3d6I7ecMLyzcfgHXnYb\" data-lark-html-role=\"root\" data-docx-has-block-data=\"false\">\n<div class=\"ace-line ace-line old-record-id-AX0efyGQXdVFtFcRvpnc2pLmnoB\">\n<div data-page-id=\"On0jfNld3d6I7ecMLyzcfgHXnYb\" data-lark-html-role=\"root\" data-docx-has-block-data=\"false\">\n<div class=\"ace-line ace-line old-record-id-BT5kfhWgHdywXVcMVz8cJIr1nGg\">\n<div data-page-id=\"On0jfNld3d6I7ecMLyzcfgHXnYb\" data-lark-html-role=\"root\" data-docx-has-block-data=\"false\">\n<div class=\"ace-line ace-line old-record-id-JXNMf5m9YdhPnjcHWBAcgeVpnjh\">\n<div data-page-id=\"On0jfNld3d6I7ecMLyzcfgHXnYb\" data-lark-html-role=\"root\" data-docx-has-block-data=\"false\">\n<div class=\"ace-line ace-line old-record-id-OgeMfov1VdTuRUc4j6dcRUSQneK\">\n<div data-page-id=\"On0jfNld3d6I7ecMLyzcfgHXnYb\" data-lark-html-role=\"root\" data-docx-has-block-data=\"false\">\n<div class=\"ace-line ace-line old-record-id-R486f5CMedBo2ccaZjmcgnYhnmd\">\n<div data-page-id=\"On0jfNld3d6I7ecMLyzcfgHXnYb\" data-lark-html-role=\"root\" data-docx-has-block-data=\"false\">\n<div class=\"ace-line ace-line old-record-id-D4BBf2GkVdFkOGc0IepczSGdnPh\">\n<div data-page-id=\"On0jfNld3d6I7ecMLyzcfgHXnYb\" data-lark-html-role=\"root\" data-docx-has-block-data=\"false\">\n<div class=\"ace-line ace-line old-record-id-XCa0fHu0hdDCRHcHLbscFioInkf\">\n<div data-page-id=\"On0jfNld3d6I7ecMLyzcfgHXnYb\" data-lark-html-role=\"root\" data-docx-has-block-data=\"false\">\n<div class=\"ace-line ace-line old-record-id-YjdxflKVKdtelZcDWYEcazNDnbc\">You can safely ignore the 3W rule for:<\/div>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t<div class=\"elementor-element elementor-element-e4a6928 e-con-full e-flex e-con e-child\" data-id=\"e4a6928\" data-element_type=\"container\" data-e-type=\"container\">\n\t\t<div class=\"elementor-element elementor-element-a9c5b5d e-con-full e-flex e-con e-child\" data-id=\"a9c5b5d\" data-element_type=\"container\" data-e-type=\"container\">\n\t\t\t\t<div class=\"elementor-element elementor-element-e19dc02 elementor-widget elementor-widget-text-editor\" data-id=\"e19dc02\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t\t\t\t\t\t<div data-page-id=\"On0jfNld3d6I7ecMLyzcfgHXnYb\" data-lark-html-role=\"root\" data-docx-has-block-data=\"false\">\n<div class=\"ace-line ace-line old-record-id-AX0efyGQXdVFtFcRvpnc2pLmnoB\">\n<div data-page-id=\"On0jfNld3d6I7ecMLyzcfgHXnYb\" data-lark-html-role=\"root\" data-docx-has-block-data=\"false\">\n<div class=\"ace-line ace-line old-record-id-BT5kfhWgHdywXVcMVz8cJIr1nGg\">\n<div data-page-id=\"On0jfNld3d6I7ecMLyzcfgHXnYb\" data-lark-html-role=\"root\" data-docx-has-block-data=\"false\">\n<div class=\"ace-line ace-line old-record-id-JXNMf5m9YdhPnjcHWBAcgeVpnjh\">\n<div data-page-id=\"On0jfNld3d6I7ecMLyzcfgHXnYb\" data-lark-html-role=\"root\" data-docx-has-block-data=\"false\">\n<div class=\"ace-line ace-line old-record-id-OgeMfov1VdTuRUc4j6dcRUSQneK\">\n<div data-page-id=\"On0jfNld3d6I7ecMLyzcfgHXnYb\" data-lark-html-role=\"root\" data-docx-has-block-data=\"false\">\n<div class=\"ace-line ace-line old-record-id-R486f5CMedBo2ccaZjmcgnYhnmd\">\n<div data-page-id=\"On0jfNld3d6I7ecMLyzcfgHXnYb\" data-lark-html-role=\"root\" data-docx-has-block-data=\"false\">\n<div class=\"ace-line ace-line old-record-id-D4BBf2GkVdFkOGc0IepczSGdnPh\">\n<div data-page-id=\"On0jfNld3d6I7ecMLyzcfgHXnYb\" data-lark-html-role=\"root\" data-docx-has-block-data=\"false\">\n<div class=\"ace-line ace-line old-record-id-XCa0fHu0hdDCRHcHLbscFioInkf\">\n<div data-page-id=\"On0jfNld3d6I7ecMLyzcfgHXnYb\" data-lark-html-role=\"root\" data-docx-has-block-data=\"false\">\n<div class=\"ace-line ace-line old-record-id-YjdxflKVKdtelZcDWYEcazNDnbc\">\n<ul>\n<li>Low-speed traces (&lt;1Mbps) with no sensitive analog components nearby<\/li>\n<li>Traces on inner layers with a solid ground plane on both sides (the planes contain the field, so 1.5-2W spacing is enough)<\/li>\n<li>High-density consumer designs like smart wearables, where board space is at a premium and you\u2019ve optimized your grounding scheme<\/li>\n<\/ul>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t<div class=\"elementor-element elementor-element-d7474c7 e-con-full e-flex e-con e-child\" data-id=\"d7474c7\" data-element_type=\"container\" data-e-type=\"container\">\n\t\t<div class=\"elementor-element elementor-element-d1d6b6b e-con-full e-flex e-con e-child\" data-id=\"d1d6b6b\" data-element_type=\"container\" data-e-type=\"container\">\n\t\t\t\t<div class=\"elementor-element elementor-element-e3b8e52 elementor-widget elementor-widget-text-editor\" data-id=\"e3b8e52\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t\t\t\t\t\t<div data-page-id=\"On0jfNld3d6I7ecMLyzcfgHXnYb\" data-lark-html-role=\"root\" data-docx-has-block-data=\"false\">\n<div class=\"ace-line ace-line old-record-id-AX0efyGQXdVFtFcRvpnc2pLmnoB\">\n<div data-page-id=\"On0jfNld3d6I7ecMLyzcfgHXnYb\" data-lark-html-role=\"root\" data-docx-has-block-data=\"false\">\n<div class=\"ace-line ace-line old-record-id-BT5kfhWgHdywXVcMVz8cJIr1nGg\">\n<div data-page-id=\"On0jfNld3d6I7ecMLyzcfgHXnYb\" data-lark-html-role=\"root\" data-docx-has-block-data=\"false\">\n<div class=\"ace-line ace-line old-record-id-JXNMf5m9YdhPnjcHWBAcgeVpnjh\">\n<div data-page-id=\"On0jfNld3d6I7ecMLyzcfgHXnYb\" data-lark-html-role=\"root\" data-docx-has-block-data=\"false\">\n<div class=\"ace-line ace-line old-record-id-OgeMfov1VdTuRUc4j6dcRUSQneK\">\n<div data-page-id=\"On0jfNld3d6I7ecMLyzcfgHXnYb\" data-lark-html-role=\"root\" data-docx-has-block-data=\"false\">\n<div class=\"ace-line ace-line old-record-id-R486f5CMedBo2ccaZjmcgnYhnmd\">\n<div data-page-id=\"On0jfNld3d6I7ecMLyzcfgHXnYb\" data-lark-html-role=\"root\" data-docx-has-block-data=\"false\">\n<div class=\"ace-line ace-line old-record-id-D4BBf2GkVdFkOGc0IepczSGdnPh\">\n<div data-page-id=\"On0jfNld3d6I7ecMLyzcfgHXnYb\" data-lark-html-role=\"root\" data-docx-has-block-data=\"false\">\n<div class=\"ace-line ace-line old-record-id-XCa0fHu0hdDCRHcHLbscFioInkf\">\n<div data-page-id=\"On0jfNld3d6I7ecMLyzcfgHXnYb\" data-lark-html-role=\"root\" data-docx-has-block-data=\"false\">\n<div class=\"ace-line ace-line old-record-id-YjdxflKVKdtelZcDWYEcazNDnbc\">\n<p>On the flip side, you need to go beyond the 3W rule for:<\/p>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t<div class=\"elementor-element elementor-element-26fad51 e-con-full e-flex e-con e-child\" data-id=\"26fad51\" data-element_type=\"container\" data-e-type=\"container\">\n\t\t<div class=\"elementor-element elementor-element-fae08b0 e-con-full e-flex e-con e-child\" data-id=\"fae08b0\" data-element_type=\"container\" data-e-type=\"container\">\n\t\t\t\t<div class=\"elementor-element elementor-element-450fc6e elementor-widget elementor-widget-text-editor\" data-id=\"450fc6e\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t\t\t\t\t\t<div data-page-id=\"On0jfNld3d6I7ecMLyzcfgHXnYb\" data-lark-html-role=\"root\" data-docx-has-block-data=\"false\">\n<div class=\"ace-line ace-line old-record-id-AX0efyGQXdVFtFcRvpnc2pLmnoB\">\n<div data-page-id=\"On0jfNld3d6I7ecMLyzcfgHXnYb\" data-lark-html-role=\"root\" data-docx-has-block-data=\"false\">\n<div class=\"ace-line ace-line old-record-id-BT5kfhWgHdywXVcMVz8cJIr1nGg\">\n<div data-page-id=\"On0jfNld3d6I7ecMLyzcfgHXnYb\" data-lark-html-role=\"root\" data-docx-has-block-data=\"false\">\n<div class=\"ace-line ace-line old-record-id-JXNMf5m9YdhPnjcHWBAcgeVpnjh\">\n<div data-page-id=\"On0jfNld3d6I7ecMLyzcfgHXnYb\" data-lark-html-role=\"root\" data-docx-has-block-data=\"false\">\n<div class=\"ace-line ace-line old-record-id-OgeMfov1VdTuRUc4j6dcRUSQneK\">\n<div data-page-id=\"On0jfNld3d6I7ecMLyzcfgHXnYb\" data-lark-html-role=\"root\" data-docx-has-block-data=\"false\">\n<div class=\"ace-line ace-line old-record-id-R486f5CMedBo2ccaZjmcgnYhnmd\">\n<div data-page-id=\"On0jfNld3d6I7ecMLyzcfgHXnYb\" data-lark-html-role=\"root\" data-docx-has-block-data=\"false\">\n<div class=\"ace-line ace-line old-record-id-D4BBf2GkVdFkOGc0IepczSGdnPh\">\n<div data-page-id=\"On0jfNld3d6I7ecMLyzcfgHXnYb\" data-lark-html-role=\"root\" data-docx-has-block-data=\"false\">\n<div class=\"ace-line ace-line old-record-id-XCa0fHu0hdDCRHcHLbscFioInkf\">\n<div data-page-id=\"On0jfNld3d6I7ecMLyzcfgHXnYb\" data-lark-html-role=\"root\" data-docx-has-block-data=\"false\">\n<div class=\"ace-line ace-line old-record-id-YjdxflKVKdtelZcDWYEcazNDnbc\">\n<ul>\n<li>RF designs above 10GHz<\/li>\n<li>High-speed memory interfaces like DDR5<\/li>\n<li>Designs that need to pass strict automotive or aerospace EMC standards For these, 5W+ spacing with grounded guard traces will give you the isolation you need.<\/li>\n<\/ul>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t<div class=\"elementor-element elementor-element-65a474e e-con-full e-flex e-con e-child\" data-id=\"65a474e\" data-element_type=\"container\" data-e-type=\"container\">\n\t\t<div class=\"elementor-element elementor-element-0cba084 e-con-full e-flex e-con e-child\" data-id=\"0cba084\" data-element_type=\"container\" data-e-type=\"container\">\n\t\t\t\t<div class=\"elementor-element elementor-element-18e2e0d elementor-widget elementor-widget-heading\" data-id=\"18e2e0d\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"heading.default\">\n\t\t\t\t\t<h2 class=\"elementor-heading-title elementor-size-default\">Real Q&amp;A: The Sharp Questions No Datasheet Will Answer<\/h2>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t<div class=\"elementor-element elementor-element-e688950 e-con-full e-flex e-con e-child\" data-id=\"e688950\" data-element_type=\"container\" data-e-type=\"container\">\n\t\t<div class=\"elementor-element elementor-element-5973495 e-con-full e-flex e-con e-child\" data-id=\"5973495\" data-element_type=\"container\" data-e-type=\"container\">\n\t\t\t\t<div class=\"elementor-element elementor-element-2d73c86 elementor-widget elementor-widget-text-editor\" data-id=\"2d73c86\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t\t\t\t\t\t<div data-page-id=\"On0jfNld3d6I7ecMLyzcfgHXnYb\" data-lark-html-role=\"root\" data-docx-has-block-data=\"false\">\n<div class=\"ace-line ace-line old-record-id-AX0efyGQXdVFtFcRvpnc2pLmnoB\">\n<div data-page-id=\"On0jfNld3d6I7ecMLyzcfgHXnYb\" data-lark-html-role=\"root\" data-docx-has-block-data=\"false\">\n<div class=\"ace-line ace-line old-record-id-BT5kfhWgHdywXVcMVz8cJIr1nGg\">\n<div data-page-id=\"On0jfNld3d6I7ecMLyzcfgHXnYb\" data-lark-html-role=\"root\" data-docx-has-block-data=\"false\">\n<div class=\"ace-line ace-line old-record-id-JXNMf5m9YdhPnjcHWBAcgeVpnjh\">\n<div data-page-id=\"On0jfNld3d6I7ecMLyzcfgHXnYb\" data-lark-html-role=\"root\" data-docx-has-block-data=\"false\">\n<div class=\"ace-line ace-line old-record-id-OgeMfov1VdTuRUc4j6dcRUSQneK\">\n<div data-page-id=\"On0jfNld3d6I7ecMLyzcfgHXnYb\" data-lark-html-role=\"root\" data-docx-has-block-data=\"false\">\n<div class=\"ace-line ace-line old-record-id-R486f5CMedBo2ccaZjmcgnYhnmd\">\n<div data-page-id=\"On0jfNld3d6I7ecMLyzcfgHXnYb\" data-lark-html-role=\"root\" data-docx-has-block-data=\"false\">\n<div class=\"ace-line ace-line old-record-id-D4BBf2GkVdFkOGc0IepczSGdnPh\">\n<div data-page-id=\"On0jfNld3d6I7ecMLyzcfgHXnYb\" data-lark-html-role=\"root\" data-docx-has-block-data=\"false\">\n<div class=\"ace-line ace-line old-record-id-XCa0fHu0hdDCRHcHLbscFioInkf\">\n<div data-page-id=\"On0jfNld3d6I7ecMLyzcfgHXnYb\" data-lark-html-role=\"root\" data-docx-has-block-data=\"false\">\n<div class=\"ace-line ace-line old-record-id-YjdxflKVKdtelZcDWYEcazNDnbc\">\n<p><strong>Q: If I follow the 3W rule perfectly, will my design pass EMC testing on the first try?<\/strong><\/p>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t<div class=\"elementor-element elementor-element-51fa5a1 e-con-full e-flex e-con e-child\" data-id=\"51fa5a1\" data-element_type=\"container\" data-e-type=\"container\">\n\t\t<div class=\"elementor-element elementor-element-cc661d2 e-con-full e-flex e-con e-child\" data-id=\"cc661d2\" data-element_type=\"container\" data-e-type=\"container\">\n\t\t\t\t<div class=\"elementor-element elementor-element-da68cd3 elementor-widget elementor-widget-text-editor\" data-id=\"da68cd3\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t\t\t\t\t\t<div data-page-id=\"On0jfNld3d6I7ecMLyzcfgHXnYb\" data-lark-html-role=\"root\" data-docx-has-block-data=\"false\">\n<div class=\"ace-line ace-line old-record-id-AX0efyGQXdVFtFcRvpnc2pLmnoB\">\n<div data-page-id=\"On0jfNld3d6I7ecMLyzcfgHXnYb\" data-lark-html-role=\"root\" data-docx-has-block-data=\"false\">\n<div class=\"ace-line ace-line old-record-id-BT5kfhWgHdywXVcMVz8cJIr1nGg\">\n<div data-page-id=\"On0jfNld3d6I7ecMLyzcfgHXnYb\" data-lark-html-role=\"root\" data-docx-has-block-data=\"false\">\n<div class=\"ace-line ace-line old-record-id-JXNMf5m9YdhPnjcHWBAcgeVpnjh\">\n<div data-page-id=\"On0jfNld3d6I7ecMLyzcfgHXnYb\" data-lark-html-role=\"root\" data-docx-has-block-data=\"false\">\n<div class=\"ace-line ace-line old-record-id-OgeMfov1VdTuRUc4j6dcRUSQneK\">\n<div data-page-id=\"On0jfNld3d6I7ecMLyzcfgHXnYb\" data-lark-html-role=\"root\" data-docx-has-block-data=\"false\">\n<div class=\"ace-line ace-line old-record-id-R486f5CMedBo2ccaZjmcgnYhnmd\">\n<div data-page-id=\"On0jfNld3d6I7ecMLyzcfgHXnYb\" data-lark-html-role=\"root\" data-docx-has-block-data=\"false\">\n<div class=\"ace-line ace-line old-record-id-D4BBf2GkVdFkOGc0IepczSGdnPh\">\n<div data-page-id=\"On0jfNld3d6I7ecMLyzcfgHXnYb\" data-lark-html-role=\"root\" data-docx-has-block-data=\"false\">\n<div class=\"ace-line ace-line old-record-id-XCa0fHu0hdDCRHcHLbscFioInkf\">\n<div data-page-id=\"On0jfNld3d6I7ecMLyzcfgHXnYb\" data-lark-html-role=\"root\" data-docx-has-block-data=\"false\">\n<div class=\"ace-line ace-line old-record-id-YjdxflKVKdtelZcDWYEcazNDnbc\">\n<p>A: No. Stop lying to yourself. The 3W rule fixes one specific problem: trace-to-trace crosstalk. EMC failures can come from a dozen other places\u2014unterminated transmission lines, poor grounding, noisy power supplies, or bad connector placement. The 3W rule is a tool, not a guarantee. I\u2019ve seen designs that follow 3W to the letter fail EMC, and designs that ignore it entirely pass, because they nailed every other part of the signal integrity puzzle.<\/p>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t<div class=\"elementor-element elementor-element-f828e44 e-con-full e-flex e-con e-child\" data-id=\"f828e44\" data-element_type=\"container\" data-e-type=\"container\">\n\t\t<div class=\"elementor-element elementor-element-ea1d7d2 e-con-full e-flex e-con e-child\" data-id=\"ea1d7d2\" data-element_type=\"container\" data-e-type=\"container\">\n\t\t\t\t<div class=\"elementor-element elementor-element-edcf67d elementor-widget elementor-widget-text-editor\" data-id=\"edcf67d\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t\t\t\t\t\t<div data-page-id=\"On0jfNld3d6I7ecMLyzcfgHXnYb\" data-lark-html-role=\"root\" data-docx-has-block-data=\"false\">\n<div class=\"ace-line ace-line old-record-id-AX0efyGQXdVFtFcRvpnc2pLmnoB\">\n<div data-page-id=\"On0jfNld3d6I7ecMLyzcfgHXnYb\" data-lark-html-role=\"root\" data-docx-has-block-data=\"false\">\n<div class=\"ace-line ace-line old-record-id-BT5kfhWgHdywXVcMVz8cJIr1nGg\">\n<div data-page-id=\"On0jfNld3d6I7ecMLyzcfgHXnYb\" data-lark-html-role=\"root\" data-docx-has-block-data=\"false\">\n<div class=\"ace-line ace-line old-record-id-JXNMf5m9YdhPnjcHWBAcgeVpnjh\">\n<div data-page-id=\"On0jfNld3d6I7ecMLyzcfgHXnYb\" data-lark-html-role=\"root\" data-docx-has-block-data=\"false\">\n<div class=\"ace-line ace-line old-record-id-OgeMfov1VdTuRUc4j6dcRUSQneK\">\n<div data-page-id=\"On0jfNld3d6I7ecMLyzcfgHXnYb\" data-lark-html-role=\"root\" data-docx-has-block-data=\"false\">\n<div class=\"ace-line ace-line old-record-id-R486f5CMedBo2ccaZjmcgnYhnmd\">\n<div data-page-id=\"On0jfNld3d6I7ecMLyzcfgHXnYb\" data-lark-html-role=\"root\" data-docx-has-block-data=\"false\">\n<div class=\"ace-line ace-line old-record-id-D4BBf2GkVdFkOGc0IepczSGdnPh\">\n<div data-page-id=\"On0jfNld3d6I7ecMLyzcfgHXnYb\" data-lark-html-role=\"root\" data-docx-has-block-data=\"false\">\n<div class=\"ace-line ace-line old-record-id-XCa0fHu0hdDCRHcHLbscFioInkf\">\n<div data-page-id=\"On0jfNld3d6I7ecMLyzcfgHXnYb\" data-lark-html-role=\"root\" data-docx-has-block-data=\"false\">\n<div class=\"ace-line ace-line old-record-id-YjdxflKVKdtelZcDWYEcazNDnbc\"><strong>Q: My design software has the 3W rule built into the DRC checks. Should I just leave it on for all traces?<\/strong><\/div>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t<div class=\"elementor-element elementor-element-4a86d62 e-con-full e-flex e-con e-child\" data-id=\"4a86d62\" data-element_type=\"container\" data-e-type=\"container\">\n\t\t<div class=\"elementor-element elementor-element-781efd0 e-con-full e-flex e-con e-child\" data-id=\"781efd0\" data-element_type=\"container\" data-e-type=\"container\">\n\t\t\t\t<div class=\"elementor-element elementor-element-0561142 elementor-widget elementor-widget-text-editor\" data-id=\"0561142\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t\t\t\t\t\t<div data-page-id=\"On0jfNld3d6I7ecMLyzcfgHXnYb\" data-lark-html-role=\"root\" data-docx-has-block-data=\"false\">\n<div class=\"ace-line ace-line old-record-id-AX0efyGQXdVFtFcRvpnc2pLmnoB\">\n<div data-page-id=\"On0jfNld3d6I7ecMLyzcfgHXnYb\" data-lark-html-role=\"root\" data-docx-has-block-data=\"false\">\n<div class=\"ace-line ace-line old-record-id-BT5kfhWgHdywXVcMVz8cJIr1nGg\">\n<div data-page-id=\"On0jfNld3d6I7ecMLyzcfgHXnYb\" data-lark-html-role=\"root\" data-docx-has-block-data=\"false\">\n<div class=\"ace-line ace-line old-record-id-JXNMf5m9YdhPnjcHWBAcgeVpnjh\">\n<div data-page-id=\"On0jfNld3d6I7ecMLyzcfgHXnYb\" data-lark-html-role=\"root\" data-docx-has-block-data=\"false\">\n<div class=\"ace-line ace-line old-record-id-OgeMfov1VdTuRUc4j6dcRUSQneK\">\n<div data-page-id=\"On0jfNld3d6I7ecMLyzcfgHXnYb\" data-lark-html-role=\"root\" data-docx-has-block-data=\"false\">\n<div class=\"ace-line ace-line old-record-id-R486f5CMedBo2ccaZjmcgnYhnmd\">\n<div data-page-id=\"On0jfNld3d6I7ecMLyzcfgHXnYb\" data-lark-html-role=\"root\" data-docx-has-block-data=\"false\">\n<div class=\"ace-line ace-line old-record-id-D4BBf2GkVdFkOGc0IepczSGdnPh\">\n<div data-page-id=\"On0jfNld3d6I7ecMLyzcfgHXnYb\" data-lark-html-role=\"root\" data-docx-has-block-data=\"false\">\n<div class=\"ace-line ace-line old-record-id-XCa0fHu0hdDCRHcHLbscFioInkf\">\n<div data-page-id=\"On0jfNld3d6I7ecMLyzcfgHXnYb\" data-lark-html-role=\"root\" data-docx-has-block-data=\"false\">\n<div class=\"ace-line ace-line old-record-id-YjdxflKVKdtelZcDWYEcazNDnbc\">A: Only if you want to waste board space and raise your manufacturing costs. Most default DRC rules apply 3W spacing to every single trace, regardless of speed or function. For a typical 4-layer industrial board, that can add 20% more layer area, which can push you from a 4-layer to a 6-layer design\u2014adding 30-40% to your per-unit cost in high volume. Use the DRC as a guide, not a gospel. Turn off the universal 3W check, and only apply it to the high-speed traces that actually need it.<\/div>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t<div class=\"elementor-element elementor-element-1281d65 e-con-full e-flex e-con e-child\" data-id=\"1281d65\" data-element_type=\"container\" data-e-type=\"container\">\n\t\t\t\t<div class=\"elementor-element elementor-element-946ce32 elementor-widget-divider--view-line elementor-widget elementor-widget-divider\" data-id=\"946ce32\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"divider.default\">\n\t\t\t\t\t\t\t<div class=\"elementor-divider\">\n\t\t\t<span class=\"elementor-divider-separator\">\n\t\t\t\t\t\t<\/span>\n\t\t<\/div>\n\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t<div class=\"elementor-element elementor-element-f06b033 e-con-full e-flex e-con e-child\" data-id=\"f06b033\" data-element_type=\"container\" data-e-type=\"container\">\n\t\t<div class=\"elementor-element elementor-element-d9badfe e-con-full e-flex e-con e-child\" data-id=\"d9badfe\" data-element_type=\"container\" data-e-type=\"container\">\n\t\t\t\t<div class=\"elementor-element elementor-element-adcc6f8 elementor-widget elementor-widget-text-editor\" data-id=\"adcc6f8\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t\t\t\t\t\t<div data-page-id=\"On0jfNld3d6I7ecMLyzcfgHXnYb\" data-lark-html-role=\"root\" data-docx-has-block-data=\"false\">\n<div class=\"ace-line ace-line old-record-id-AX0efyGQXdVFtFcRvpnc2pLmnoB\">\n<div data-page-id=\"On0jfNld3d6I7ecMLyzcfgHXnYb\" data-lark-html-role=\"root\" data-docx-has-block-data=\"false\">\n<div class=\"ace-line ace-line old-record-id-BT5kfhWgHdywXVcMVz8cJIr1nGg\">\n<div data-page-id=\"On0jfNld3d6I7ecMLyzcfgHXnYb\" data-lark-html-role=\"root\" data-docx-has-block-data=\"false\">\n<div class=\"ace-line ace-line old-record-id-JXNMf5m9YdhPnjcHWBAcgeVpnjh\">\n<div data-page-id=\"On0jfNld3d6I7ecMLyzcfgHXnYb\" data-lark-html-role=\"root\" data-docx-has-block-data=\"false\">\n<div class=\"ace-line ace-line old-record-id-OgeMfov1VdTuRUc4j6dcRUSQneK\">\n<div data-page-id=\"On0jfNld3d6I7ecMLyzcfgHXnYb\" data-lark-html-role=\"root\" data-docx-has-block-data=\"false\">\n<div class=\"ace-line ace-line old-record-id-R486f5CMedBo2ccaZjmcgnYhnmd\">\n<div data-page-id=\"On0jfNld3d6I7ecMLyzcfgHXnYb\" data-lark-html-role=\"root\" data-docx-has-block-data=\"false\">\n<div class=\"ace-line ace-line old-record-id-D4BBf2GkVdFkOGc0IepczSGdnPh\">\n<div data-page-id=\"On0jfNld3d6I7ecMLyzcfgHXnYb\" data-lark-html-role=\"root\" data-docx-has-block-data=\"false\">\n<div class=\"ace-line ace-line old-record-id-XCa0fHu0hdDCRHcHLbscFioInkf\">\n<div data-page-id=\"On0jfNld3d6I7ecMLyzcfgHXnYb\" data-lark-html-role=\"root\" data-docx-has-block-data=\"false\">\n<div class=\"ace-line ace-line old-record-id-YjdxflKVKdtelZcDWYEcazNDnbc\">At the end of the day, the 3W rule is only as good as the engineer using it. It\u2019s not a magic bullet, but it\u2019s a powerful tool when you understand when and how to use it. If you\u2019re struggling with crosstalk, EMC failures, or just want to optimize your PCB layout for both performance and cost, our team of signal integrity experts with 10+ years of production line experience is here to help. Send us your design files or project requirements today, and we\u2019ll give you a no-nonsense review of your layout, with actionable fixes to get your design right on the first spin.<\/div>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t<div class=\"elementor-element elementor-element-2b49de3 e-con-full e-flex e-con e-child\" data-id=\"2b49de3\" data-element_type=\"container\" data-e-type=\"container\">\n\t\t<div class=\"elementor-element elementor-element-6e25eca e-con-full e-flex e-con e-child\" data-id=\"6e25eca\" data-element_type=\"container\" data-e-type=\"container\">\n\t\t\t\t<div class=\"elementor-element elementor-element-6711e33 elementor-widget elementor-widget-heading\" data-id=\"6711e33\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"heading.default\">\n\t\t\t\t\t<h2 class=\"elementor-heading-title elementor-size-default\">About US<\/h2>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t<div class=\"elementor-element elementor-element-b5dd9e1 e-con-full e-flex e-con e-child\" data-id=\"b5dd9e1\" data-element_type=\"container\" data-e-type=\"container\">\n\t\t<div class=\"elementor-element elementor-element-6d2aab8 e-con-full e-flex e-con e-child\" data-id=\"6d2aab8\" data-element_type=\"container\" data-e-type=\"container\">\n\t\t\t\t<div class=\"elementor-element elementor-element-72a5de8 elementor-widget elementor-widget-text-editor\" data-id=\"72a5de8\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t\t\t\t\t\t<div data-page-id=\"On0jfNld3d6I7ecMLyzcfgHXnYb\" data-lark-html-role=\"root\" data-docx-has-block-data=\"false\"><div class=\"ace-line ace-line old-record-id-AX0efyGQXdVFtFcRvpnc2pLmnoB\"><div data-page-id=\"On0jfNld3d6I7ecMLyzcfgHXnYb\" data-lark-html-role=\"root\" data-docx-has-block-data=\"false\"><div class=\"ace-line ace-line old-record-id-BT5kfhWgHdywXVcMVz8cJIr1nGg\"><div data-page-id=\"On0jfNld3d6I7ecMLyzcfgHXnYb\" data-lark-html-role=\"root\" data-docx-has-block-data=\"false\"><div class=\"ace-line ace-line old-record-id-JXNMf5m9YdhPnjcHWBAcgeVpnjh\"><div data-page-id=\"On0jfNld3d6I7ecMLyzcfgHXnYb\" data-lark-html-role=\"root\" data-docx-has-block-data=\"false\"><div class=\"ace-line ace-line old-record-id-OgeMfov1VdTuRUc4j6dcRUSQneK\"><div data-page-id=\"On0jfNld3d6I7ecMLyzcfgHXnYb\" data-lark-html-role=\"root\" data-docx-has-block-data=\"false\"><div class=\"ace-line ace-line old-record-id-R486f5CMedBo2ccaZjmcgnYhnmd\"><div data-page-id=\"On0jfNld3d6I7ecMLyzcfgHXnYb\" data-lark-html-role=\"root\" data-docx-has-block-data=\"false\"><div class=\"ace-line ace-line old-record-id-D4BBf2GkVdFkOGc0IepczSGdnPh\"><div data-page-id=\"On0jfNld3d6I7ecMLyzcfgHXnYb\" data-lark-html-role=\"root\" data-docx-has-block-data=\"false\"><div class=\"ace-line ace-line old-record-id-XCa0fHu0hdDCRHcHLbscFioInkf\"><div data-page-id=\"On0jfNld3d6I7ecMLyzcfgHXnYb\" data-lark-html-role=\"root\" data-docx-has-block-data=\"false\"><div class=\"ace-line ace-line old-record-id-YjdxflKVKdtelZcDWYEcazNDnbc\"><div data-page-id=\"On0jfNld3d6I7ecMLyzcfgHXnYb\" data-lark-html-role=\"root\" data-docx-has-block-data=\"false\"><div class=\"ace-line ace-line old-record-id-MoKEfKI4EdzEuPcCo3JcUGJMnac\"><div data-page-id=\"On0jfNld3d6I7ecMLyzcfgHXnYb\" data-lark-html-role=\"root\" data-docx-has-block-data=\"false\"><div class=\"ace-line ace-line old-record-id-HKXTfaw8Sd5zbxcNUYIc3xO7ndd\">Founded in 2012, JKRGLO strives to build a one-stop platform for the electronic industry chain. By integrating PCB manufacturing, component procurement and PCB assembly services, we enable digital PCBA processing. With increasing investment in innovation and digital systems, we have achieved rapid growth and emerged as a leading PCB and PCBA manufacturer in the industry, capable of rapidly producing high-reliability and cost-effective products.<\/div><div>\u00a0<\/div><div class=\"ace-line ace-line old-record-id-HKXTfaw8Sd5zbxcNUYIc3xO7ndd\"><a href=\"https:\/\/jkrglo.com\/about-us\/\">About US<\/a><\/div><\/div><\/div><\/div><\/div><\/div><\/div><\/div><\/div><\/div><\/div><\/div><\/div><\/div><\/div><\/div><\/div><\/div><\/div><\/div>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t<div class=\"elementor-element elementor-element-47e9ae48 e-con-full e-flex e-con e-child\" data-id=\"47e9ae48\" data-element_type=\"container\" data-e-type=\"container\" 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