{"id":7026,"date":"2026-11-05T14:27:39","date_gmt":"2026-11-05T06:27:39","guid":{"rendered":"https:\/\/walta-electronic.com\/?p=7026"},"modified":"2026-11-05T14:27:39","modified_gmt":"2026-11-05T06:27:39","slug":"rj45-connector-integrated-vs-without-magnetics","status":"publish","type":"post","link":"https:\/\/walta-electronic.com\/tw\/rj45-connector-integrated-vs-without-magnetics\/","title":{"rendered":"RJ45\u9023\u63a5\u5668\u8981\u4e0d\u8981\u9078\u5167\u5efa\u78c1\u6027\uff1f\u548c\u7121\u78c1\u6027RJ45\u63d2\u5ea7\u5dee\u5728\u54ea"},"content":{"rendered":"<p>RJ45\u9023\u63a5\u5668\u9078\u5167\u5efa\u78c1\u6027\uff0c\u53ef\u7701\u677f\u9762\u8207\u96f6\u4ef6\uff1b\u9078\u7121\u78c1\u6027\u6b3e\uff0c\u9808\u5728\u677f\u4e0a\u53e6\u914d\u78c1\u6027\u5143\u4ef6\uff0c\u4f46\u6ffe\u6ce2\u8207\u4f48\u5c40\u53ef\u81ea\u884c\u8abf\u6574\u3002<\/p>\n<p>\u7db2\u8def\u57e0\u7684\u96f6\u4ef6\u6e05\u55ae\u88e1\uff0c\u7e3d\u6703\u5361\u5728\u540c\u4e00\u984c\uff1aRJ45\u9023\u63a5\u5668\u8981\u9078\u5167\u5efa\u78c1\u6027\u7684\uff0c\u9084\u662f\u9078\u7121\u78c1\u6027\u3001\u81ea\u5df1\u5728\u677f\u4e0a\u914d\u8b8a\u58d3\u5668\uff1f\u9078\u932f\u6703\u591a\u4ed8\u4ec0\u9ebc\u4ee3\u50f9\uff1f\u5167\u5efa\u6b3e\u7701\u677f\u9762\u3001\u5c11\u96f6\u4ef6\uff0c\u4f46\u78c1\u6027\u5143\u4ef6\u7684\u5c3a\u5bf8\u53d7\u5916\u6bbc\u9650\u5236\uff1b\u7121\u78c1\u6027\u6b3e\u5f48\u6027\u5927\uff0c\u4f48\u5c40\u548c\u9078\u578b\u537b\u90fd\u8981\u81ea\u5df1\u625b\uff01\u6587\u4e2d\u628a\u5169\u7a2e\u505a\u6cd5\u4f9d\u677f\u9762\u3001EMC\u3001\u91cd\u5de5\u8207\u8a2d\u8a08\u5f48\u6027\u9010\u9805\u5c0d\u7167\uff0c\u4f60\u53ef\u4ee5\u76f4\u63a5\u62ff\u81ea\u5df1\u7684\u689d\u4ef6\u53bb\u5957\u3002<\/p><div id=\"ez-toc-container\" class=\"ez-toc-v2_0_89 counter-hierarchy ez-toc-counter ez-toc-grey ez-toc-container-direction\">\n<div class=\"ez-toc-title-container\">\n<p class=\"ez-toc-title\" style=\"cursor:inherit\">\u6587\u7ae0\u76ee\u9304<\/p>\n<span class=\"ez-toc-title-toggle\"><a href=\"#\" class=\"ez-toc-pull-right ez-toc-btn ez-toc-btn-xs ez-toc-btn-default ez-toc-toggle\" aria-label=\"\u986f\u793a\/\u96b1\u85cf\u5167\u5bb9\u76ee\u9304\"><span class=\"ez-toc-js-icon-con\"><span class=\"\"><span class=\"eztoc-hide\" style=\"display:none;\">Toggle<\/span><span class=\"ez-toc-icon-toggle-span\"><svg style=\"fill: #999;color:#999\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\" class=\"list-377408\" width=\"20px\" height=\"20px\" viewbox=\"0 0 24 24\" fill=\"none\"><path d=\"M6 6H4v2h2V6zm14 0H8v2h12V6zM4 11h2v2H4v-2zm16 0H8v2h12v-2zM4 16h2v2H4v-2zm16 0H8v2h12v-2z\" fill=\"currentColor\"><\/path><\/svg><svg style=\"fill: #999;color:#999\" class=\"arrow-unsorted-368013\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\" width=\"10px\" height=\"10px\" viewbox=\"0 0 24 24\" version=\"1.2\" baseprofile=\"tiny\"><path d=\"M18.2 9.3l-6.2-6.3-6.2 6.3c-.2.2-.3.4-.3.7s.1.5.3.7c.2.2.4.3.7.3h11c.3 0 .5-.1.7-.3.2-.2.3-.5.3-.7s-.1-.5-.3-.7zM5.8 14.7l6.2 6.3 6.2-6.3c.2-.2.3-.5.3-.7s-.1-.5-.3-.7c-.2-.2-.4-.3-.7-.3h-11c-.3 0-.5.1-.7.3-.2.2-.3.5-.3.7s.1.5.3.7z\"\/><\/svg><\/span><\/span><\/span><\/a><\/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:\/\/walta-electronic.com\/tw\/rj45-connector-integrated-vs-without-magnetics\/#what-do-magnetics-do-in-an-rj45-connector\" >\u78c1\u6027\u5143\u4ef6\u5728RJ45\u9023\u63a5\u5668\u88e1\u8ca0\u8cac\u4ec0\u9ebc<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-2\" href=\"https:\/\/walta-electronic.com\/tw\/rj45-connector-integrated-vs-without-magnetics\/#structural-differences-between-rj45-jacks-with-and-without-integrated-magnetics\" >\u5167\u5efa\u78c1\u6027\u8207\u7121\u78c1\u6027RJ45\u63d2\u5ea7\u7684\u7d50\u69cb\u5dee\u7570<\/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:\/\/walta-electronic.com\/tw\/rj45-connector-integrated-vs-without-magnetics\/#comparison-of-rj45-connectors-with-and-without-integrated-magnetics\" >\u5167\u5efa\u8207\u7121\u78c1\u6027RJ45\u9023\u63a5\u5668\u6bd4\u8f03<\/a><\/li><\/ul><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-4\" href=\"https:\/\/walta-electronic.com\/tw\/rj45-connector-integrated-vs-without-magnetics\/#four-factors-that-determine-whether-to-choose-integrated-magnetics\" >\u56db\u500b\u689d\u4ef6\u6c7a\u5b9a\u8981\u4e0d\u8981\u9078\u5167\u5efa\u78c1\u6027<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-5\" href=\"https:\/\/walta-electronic.com\/tw\/rj45-connector-integrated-vs-without-magnetics\/#specifications-and-layout-checks-for-both-approaches\" >\u5169\u7a2e\u505a\u6cd5\u5404\u81ea\u8981\u6838\u5c0d\u7684\u898f\u683c\u8207\u4f48\u5c40<\/a><ul class='ez-toc-list-level-3' ><li class='ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-6\" href=\"https:\/\/walta-electronic.com\/tw\/rj45-connector-integrated-vs-without-magnetics\/#when-choosing-integrated-magnetics-check-the-datasheet\" >\u9078\u5167\u5efa\u78c1\u6027\u6642\uff1a\u6838\u5c0d\u898f\u683c\u66f8<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-7\" href=\"https:\/\/walta-electronic.com\/tw\/rj45-connector-integrated-vs-without-magnetics\/#when-choosing-a-jack-without-magnetics-what-must-be-added-to-the-board\" >\u9078\u7121\u78c1\u6027\u63d2\u5ea7\u6642\uff1a\u677f\u4e0a\u8981\u88dc\u9f4a\u4ec0\u9ebc<\/a><\/li><\/ul><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-8\" href=\"https:\/\/walta-electronic.com\/tw\/rj45-connector-integrated-vs-without-magnetics\/#frequently-asked-questions\" >\u5e38\u898b\u554f\u984c<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-9\" href=\"https:\/\/walta-electronic.com\/tw\/rj45-connector-integrated-vs-without-magnetics\/#choosing-an-rj45-connector-with-or-without-integrated-magnetics-start-with-board-space-and-emc-margins\" >RJ45\u9023\u63a5\u5668\u9078\u5167\u5efa\u78c1\u6027\u6216\u7121\u78c1\u6027\uff0c\u5148\u770b\u677f\u9762\u8207EMC\u9918\u88d5<\/a><\/li><\/ul><\/nav><\/div>\n\n<hr \/>\n<h2><span class=\"ez-toc-section\" id=\"what-do-magnetics-do-in-an-rj45-connector\"><\/span><span style=\"font-size: 18pt;\">\u78c1\u6027\u5143\u4ef6\u5728RJ45\u9023\u63a5\u5668\u88e1\u8ca0\u8cac\u4ec0\u9ebc<\/span><span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p>\u78c1\u6027\u5143\u4ef6\u662f\u4e59\u592a\u7db2\u8def\u57e0\u4e0a\u7684\u8b8a\u58d3\u5668\u8207\u5171\u6a21\u627c\u6d41\u5708\uff0c\u4f4d\u7f6e\u5728 PHY\uff08\u5be6\u9ad4\u5c64\u6676\u7247\uff09\u8207\u7db2\u8def\u7dda\u4e4b\u9593\u3002\u8b8a\u58d3\u5668\u5728\u7db2\u8def\u7dda\u8207\u7cfb\u7d71\u4e4b\u9593\u5efa\u7acb\u96fb\u6c23\u9694\u96e2\uff0c\u5e38\u898b\u531d\u6578\u6bd4\u70ba 1:1\uff0c\u5be6\u969b\u9808\u4f9d PHY \u898f\u683c\u9078\u7528\uff1b\u5171\u6a21\u627c\u6d41\u5708\u5247\u8ca0\u8cac\u8870\u6e1b\u5169\u500b\u65b9\u5411\u7684\u5171\u6a21\u96dc\u8a0a\u3002<\/p>\n<p>\u4f9d IEEE 802.3\uff0c10\/100\/1000BASE-T \u57e0\u8981\u901a\u904e\u9694\u96e2\u8010\u58d3\u6e2c\u8a66\uff0c\u4f8b\u5982\u627f\u53d7 1,500 V \u4ea4\u6d41\uff0850 \u6216 60 Hz\uff09\u6301\u7e8c 1 \u5206\u9418\uff0c\u6a19\u6e96\u4e5f\u5141\u8a31\u6539\u7528 2,250 V \u76f4\u6d41\u6301\u7e8c 1 \u5206\u9418\u7684\u6e2c\u8a66\u3002\u6a19\u6e96\u6c92\u6709\u660e\u6587\u898f\u5b9a\u4e00\u5b9a\u8981\u7528\u78c1\u6027\u5143\u4ef6\uff0c\u4f46\u8b8a\u58d3\u5668\u80fd\u4ee5\u4f4e\u6210\u672c\u9054\u5230\u9019\u9805\u9694\u96e2\u8981\u6c42\uff0c\u662f\u6700\u5e38\u898b\u7684\u505a\u6cd5\u3002\u78c1\u6027\u5143\u4ef6\u4e00\u6b21\u8655\u7406\u56db\u4ef6\u4e8b\uff1a<\/p>\n<ul>\n<li>\u96fb\u6c23\u9694\u96e2\uff1a\u5728\u984d\u5b9a\u9694\u96e2\u80fd\u529b\u5167\uff0c\u963b\u9694\u7db2\u8def\u7dda\u8207\u7cfb\u7d71\u4e4b\u9593\u7684\u76f4\u63a5\u5c0e\u96fb\u8def\u5f91\u3002<\/li>\n<li>\u8a0a\u865f\u5e73\u8861\u8207\u5171\u6a21\u6291\u5236\uff1a\u6709\u52a9\u65bc\u7dad\u6301\u96d9\u7d5e\u7dda\u6bcf\u5c0d\u8a0a\u865f\u7684\u5e73\u8861\uff0c\u4e26\u8870\u6e1b\u4f86\u81ea\u5916\u754c\u8207\u677f\u4e0a\u7684\u5171\u6a21\u96dc\u8a0a\u3002<\/li>\n<li>\u963b\u6297\u5339\u914d\uff1a\u8b93 PHY \u8f38\u51fa\u8207\u7db2\u8def\u7dda\u7684\u963b\u6297\u929c\u63a5\u3002<\/li>\n<li>EMC \u6539\u5584\uff1a10\/100\/1000BASE-T \u591a\u4f7f\u7528\u975e\u906e\u853d\u96d9\u7d5e\u7dda\uff0c\u6c92\u6709\u88ab\u6ffe\u6389\u7684\u5171\u6a21\u96dc\u8a0a\u6703\u76f4\u63a5\u5f9e\u7dda\u4e0a\u8f3b\u5c04\u51fa\u53bb\u3002<\/li>\n<\/ul>\n<hr \/>\n<h2><span class=\"ez-toc-section\" id=\"structural-differences-between-rj45-jacks-with-and-without-integrated-magnetics\"><\/span><span style=\"font-size: 18pt;\">\u5167\u5efa\u78c1\u6027\u8207\u7121\u78c1\u6027RJ45\u63d2\u5ea7\u7684\u7d50\u69cb\u5dee\u7570<\/span><span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p class=\"translation-block\">\u5167\u5efa\u78c1\u6027RJ45\u63d2\u5ea7\u628a\u78c1\u6027\u5143\u4ef6\u5c01\u9032\u9023\u63a5\u5668\u5916\u6bbc\uff0c\u7121\u78c1\u6027RJ45\u63d2\u5ea7\u5247\u53ea\u6709\u63d2\u5ea7\u672c\u9ad4\uff0c\u78c1\u6027\u5143\u4ef6\u8981\u53e6\u5916\u710a\u5728 PCB \u4e0a\u3002\u5169\u7a2e\u505a\u6cd5\u7684\u5dee\u7570\u5982\u4e0b\u8868\u3002<\/p>\n<table style=\"border-collapse: collapse; width: 100%; border: 2px solid #1B474C;\">\n<caption style=\"text-align: left; padding: 0 0 10px 0; caption-side: top;\">\n<h3 style=\"margin: 0; font-weight: bold;\"><span class=\"ez-toc-section\" id=\"comparison-of-rj45-connectors-with-and-without-integrated-magnetics\"><\/span><span style=\"font-size: 14pt;\">\u5167\u5efa\u8207\u7121\u78c1\u6027RJ45\u9023\u63a5\u5668\u6bd4\u8f03<\/span><span class=\"ez-toc-section-end\"><\/span><\/h3>\n<\/caption>\n<thead>\n<tr>\n<th scope=\"col\" style=\"text-align: center; border: 1px solid #1B474C; padding: 8px; background-color: #2C6167; color: #ffffff; font-weight: bold;\">\u6bd4\u8f03\u9805\u76ee<\/th>\n<th scope=\"col\" style=\"text-align: center; border: 1px solid #1B474C; padding: 8px; background-color: #2C6167; color: #ffffff; font-weight: bold;\">\u5167\u5efa\u78c1\u6027RJ45\u63d2\u5ea7<\/th>\n<th scope=\"col\" style=\"text-align: center; border: 1px solid #1B474C; padding: 8px; background-color: #2C6167; color: #ffffff; font-weight: bold;\">\u7121\u78c1\u6027RJ45\u63d2\u5ea7\u642d\u914d\u5206\u96e2\u5f0f\u78c1\u6027\u5143\u4ef6<\/th>\n<\/tr>\n<\/thead>\n<tbody>\n<tr>\n<th scope=\"row\" style=\"text-align: center; border: 1px solid #1B474C; padding: 8px; background-color: #427C82; color: #ffffff; font-weight: bold;\">\u78c1\u6027\u5143\u4ef6\u4f4d\u7f6e<\/th>\n<td style=\"text-align: center; border: 1px solid #1B474C; padding: 8px; background-color: #ffffff; color: #333333;\">\u5c01\u5728\u63d2\u5ea7\u5916\u6bbc\u5167\uff0c\u8207\u63d2\u5ea7\u6210\u70ba\u540c\u4e00\u500b\u96f6\u4ef6<\/td>\n<td style=\"text-align: center; border: 1px solid #1B474C; padding: 8px; background-color: #ffffff; color: #333333;\">\u53e6\u6210\u7368\u7acb\u96f6\u4ef6\uff0c\u4f4d\u5728 PHY \u8207\u63d2\u5ea7\u4e4b\u9593\u7684 PCB \u4e0a<\/td>\n<\/tr>\n<tr>\n<th scope=\"row\" style=\"text-align: center; border: 1px solid #1B474C; padding: 8px; background-color: #427C82; color: #ffffff; font-weight: bold;\">\u96f6\u4ef6\u6578\u8207\u7d44\u88dd<\/th>\n<td style=\"text-align: center; border: 1px solid #1B474C; padding: 8px; background-color: #ffffff; color: #333333;\">\u96f6\u4ef6\u6578\u8f03\u5c11\uff0c\u7d44\u88dd\u6210\u672c\u8f03\u4f4e<\/td>\n<td style=\"text-align: center; border: 1px solid #1B474C; padding: 8px; background-color: #ffffff; color: #333333;\">\u96f6\u4ef6\u8f03\u591a\uff0c\u7d44\u88dd\u5de5\u5e8f\u8f03\u9577<\/td>\n<\/tr>\n<tr>\n<th scope=\"row\" style=\"text-align: center; border: 1px solid #1B474C; padding: 8px; background-color: #427C82; color: #ffffff; font-weight: bold;\">\u4f54\u677f\u9762\u7a4d<\/th>\n<td style=\"text-align: center; border: 1px solid #1B474C; padding: 8px; background-color: #ffffff; color: #333333;\">\u4f54\u677f\u9762\u7a4d\u8f03\u5c0f\uff0c\u9069\u5408\u5c0f\u578b\u88dd\u7f6e<\/td>\n<td style=\"text-align: center; border: 1px solid #1B474C; padding: 8px; background-color: #ffffff; color: #333333;\">\u63d2\u5ea7\u8207\u78c1\u6027\u5143\u4ef6\u5206\u958b\u4f54\u4f4d\uff0c\u9762\u7a4d\u8f03\u5927<\/td>\n<\/tr>\n<tr>\n<th scope=\"row\" style=\"text-align: center; border: 1px solid #1B474C; padding: 8px; background-color: #427C82; color: #ffffff; font-weight: bold;\">\u5171\u6a21\u6ffe\u6ce2\u8207\u4e32\u64fe<\/th>\n<td style=\"text-align: center; border: 1px solid #1B474C; padding: 8px; background-color: #ffffff; color: #333333;\">\u78c1\u82af\u901a\u5e38\u8f03\u5c0f\u4e14\u5f7c\u6b64\u9760\u8fd1\uff0c\u53ef\u80fd\u589e\u52a0\u4e32\u64fe\u8207\u640d\u8017\uff0c\u4e26\u9650\u5236\u5171\u6a21\u6ffe\u6ce2\u6548\u679c<\/td>\n<td style=\"text-align: center; border: 1px solid #1B474C; padding: 8px; background-color: #ffffff; color: #333333;\">\u53ef\u9078\u7528\u78c1\u82af\u8f03\u5927\u3001\u5167\u90e8\u8026\u5408\u8f03\u4f4e\u7684\u578b\u865f\uff0c\u589e\u52a0\u5171\u6a21\u6ffe\u6ce2\u7684\u8abf\u6574\u7a7a\u9593<\/td>\n<\/tr>\n<tr>\n<th scope=\"row\" style=\"text-align: center; border: 1px solid #1B474C; padding: 8px; background-color: #427C82; color: #ffffff; font-weight: bold;\">EMC \u906e\u853d<\/th>\n<td style=\"text-align: center; border: 1px solid #1B474C; padding: 8px; background-color: #ffffff; color: #333333;\">\u91d1\u5c6c\u5916\u6bbc\u5305\u4f4f\u6574\u500b\u6a21\u7d44\uff0c\u53ef\u906e\u853d\u7cfb\u7d71\u5167\u90e8\u96dc\u8a0a\u5c0d\u7dda\u7e9c\u5074\u8a0a\u865f\u7684\u5e72\u64fe<\/td>\n<td style=\"text-align: center; border: 1px solid #1B474C; padding: 8px; background-color: #ffffff; color: #333333;\">\u78c1\u6027\u5143\u4ef6\u5230\u63d2\u5ea7\u4e4b\u9593\u7684\u8d70\u7dda\u5728 PCB \u4e0a\uff0c\u8981\u9760\u4f48\u5c40\u907f\u958b\u96dc\u8a0a\u6e90<\/td>\n<\/tr>\n<tr>\n<th scope=\"row\" style=\"text-align: center; border: 1px solid #1B474C; padding: 8px; background-color: #427C82; color: #ffffff; font-weight: bold;\">\u751f\u7522\u6e2c\u8a66\u91cd\u5de5<\/th>\n<td style=\"text-align: center; border: 1px solid #1B474C; padding: 8px; background-color: #ffffff; color: #333333;\">\u78c1\u6027\u5143\u4ef6\u6216\u63d2\u5ea7\u51fa\u554f\u984c\u6642\u8f03\u96e3\u91cd\u5de5\uff0c\u5e38\u9808\u6574\u9846\u66f4\u63db<\/td>\n<td style=\"text-align: center; border: 1px solid #1B474C; padding: 8px; background-color: #ffffff; color: #333333;\">\u78c1\u6027\u5143\u4ef6\u5230\u63d2\u5ea7\u4e4b\u9593\u7684\u8d70\u7dda\u5728 PCB \u4e0a\uff0c\u8981\u9760\u4f48\u5c40\u907f\u958b\u96dc\u8a0a\u6e90<\/td>\n<\/tr>\n<tr>\n<th scope=\"row\" style=\"text-align: center; border: 1px solid #1B474C; padding: 8px; background-color: #427C82; color: #ffffff; font-weight: bold;\">\u8a2d\u8a08\u5f48\u6027<\/th>\n<td style=\"text-align: center; border: 1px solid #1B474C; padding: 8px; background-color: #ffffff; color: #333333;\">\u53ea\u80fd\u63a1\u7528\u6210\u54c1\u65e2\u5b9a\u7684\u78c1\u6027\u53c3\u6578<\/td>\n<td style=\"text-align: center; border: 1px solid #1B474C; padding: 8px; background-color: #ffffff; color: #333333;\">\u53ef\u81ea\u884c\u6311\u9078\u8b8a\u58d3\u5668\u8207\u6ffe\u6ce2\u5143\u4ef6\u7d44\u5408<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<p>\u4e0d\u540c\u578b\u865f\u7684\u78c1\u6027\u5143\u4ef6\uff0c\u96fb\u8def\u793a\u610f\u5716\u770b\u8d77\u4f86\u5e7e\u4e4e\u4e00\u6a23\uff0c\u5be6\u969b\u96fb\u6c23\u8207 EMC \u8868\u73fe\u4ecd\u53ef\u80fd\u5dee\u5f88\u591a\uff0c\u56e0\u70ba\u69cb\u9020\u54c1\u8cea\u6703\u5f71\u97ff\u8b8a\u58d3\u5668\u8207\u5171\u6a21\u627c\u6d41\u5708\u5169\u5074\u8a0a\u865f\u8def\u5f91\u4e4b\u9593\u7684\u8026\u5408\u3002\u5167\u5efa\u6b3e\u7684 EMC \u8868\u73fe\u4e5f\u8981\u770b\u7528\u5728\u4ec0\u9ebc\u7522\u54c1\u88e1\uff0c\u53ef\u80fd\u6bd4\u5206\u96e2\u5f0f\u597d\uff0c\u4e5f\u53ef\u80fd\u66f4\u5dee\u3002<\/p>\n<hr \/>\n<h2><span class=\"ez-toc-section\" id=\"four-factors-that-determine-whether-to-choose-integrated-magnetics\"><\/span><span style=\"font-size: 18pt;\">\u56db\u500b\u689d\u4ef6\u6c7a\u5b9a\u8981\u4e0d\u8981\u9078\u5167\u5efa\u78c1\u6027<\/span><span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p>\u8981\u4e0d\u8981\u9078\u5167\u5efa\u78c1\u6027\uff0c\u53ef\u4f9d\u677f\u9762\u8207\u96f6\u4ef6\u6578\u3001EMC \u8207\u4e32\u64fe\u9918\u88d5\u3001\u7522\u7dda\u91cd\u5de5\u3001\u78c1\u6027\u53c3\u6578\u8abf\u6574\u7a7a\u9593\u56db\u500b\u689d\u4ef6\u5224\u65b7\u3002<\/p>\n<ol>\n<li>\u677f\u9762\u8207\u96f6\u4ef6\u6578\uff1a\u677f\u9762\u7dca\u3001\u60f3\u6e1b\u5c11\u96f6\u4ef6\u8207\u7d44\u88dd\u5de5\u5e8f\uff0c\u9078\u5167\u5efa\u78c1\u6027\u3002\u7aef\u5b50\u6578\u53d7\u9650\u7684\u677f\u5b50\uff0c\u5728\u7b26\u5408 PHY \u63a5\u6cd5\u8981\u6c42\u6642\uff0c\u4e5f\u53ef\u4ee5\u8003\u616e\u628a\u5404\u5c0d PHY \u7aef\u4e2d\u5fc3\u62bd\u982d\u7368\u7acb\u7d93\u96fb\u5bb9\u53bb\u8026\u3001\u518d\u63a5\u5230\u55ae\u4e00\u63a5\u5730\u7aef\u5b50\u7684\u6574\u5408\u5f0f\u6a21\u7d44\u3002<\/li>\n<li>EMC \u8207\u4e32\u64fe\u9918\u88d5\uff1a\u60f3\u589e\u52a0\u5171\u6a21\u6ffe\u6ce2\u7684\u8abf\u6574\u7a7a\u9593\uff0c\u53ef\u9078\u5206\u96e2\u5f0f\u78c1\u6027\u5143\u4ef6\uff1b\u5167\u90e8\u8026\u5408\u8f03\u4f4e\u7684\u578b\u865f\u6709\u5229\u65bc\u6ffe\u6ce2\uff0c\u4f46\u78c1\u6027\u5143\u4ef6\u5230\u63d2\u5ea7\u4e4b\u9593\u7684\u8d70\u7dda\u8981\u9060\u96e2\u677f\u4e0a\u96dc\u8a0a\u6e90\u3002\u5167\u5efa\u6b3e\u7684\u91d1\u5c6c\u5916\u6bbc\u53ef\u906e\u853d\u7cfb\u7d71\u5167\u90e8\u96dc\u8a0a\uff0c\u8f03\u5c0f\u4e14\u9760\u8fd1\u7684\u78c1\u82af\u5247\u53ef\u80fd\u589e\u52a0\u4e32\u64fe\u8207\u640d\u8017\uff0c\u5169\u500b\u6548\u61c9\u8ab0\u5360\u4e0a\u98a8\uff0c\u8981\u770b\u5be6\u969b\u578b\u865f\u8207\u61c9\u7528\u3002<\/li>\n<li>\u7522\u7dda\u91cd\u5de5\uff1a\u9810\u671f\u751f\u7522\u6e2c\u8a66\u5f8c\u9700\u8981\u63db\u4ef6\uff0c\u9078\u7121\u78c1\u6027\u63d2\u5ea7\u642d\u5206\u96e2\u5f0f\u78c1\u6027\u5143\u4ef6\uff0c\u53ea\u63db\u6545\u969c\u90a3\u4e00\u9846\uff1b\u5167\u5efa\u6b3e\u51fa\u554f\u984c\u5e38\u6574\u9846\u66f4\u63db\uff0c\u91cd\u5de5\u6210\u672c\u8f03\u9ad8\u3002<\/li>\n<li>\u78c1\u6027\u53c3\u6578\u8abf\u6574\u7a7a\u9593\uff1a\u627e\u4e0d\u5230\u78c1\u6027\u53c3\u6578\u7b26\u5408 PHY \u8981\u6c42\u7684\u5167\u5efa\u6b3e\uff0c\u6216\u4e4b\u5f8c\u53ef\u80fd\u8981\u6539\u6ffe\u6ce2\u914d\u7f6e\uff0c\u9078\u7121\u78c1\u6027\u63d2\u5ea7\uff0c\u8b8a\u58d3\u5668\u8207\u5171\u6a21\u627c\u6d41\u5708\u53ef\u4ee5\u5206\u958b\u6311\u9078\u3002\u5167\u5efa\u6b3e\u7684\u78c1\u6027\u53c3\u6578\u5728\u51fa\u5ee0\u6642\u5df2\u56fa\u5b9a\u3002<\/li>\n<\/ol>\n<p>\u56db\u500b\u689d\u4ef6\u4e92\u76f8\u885d\u7a81\u6642\uff08\u4f8b\u5982\u677f\u9762\u7dca\u3001EMC \u9918\u88d5\u4e5f\u7dca\uff09\uff0c\u4ee5\u5be6\u969b\u7cfb\u7d71\u677f\u7684 EMC \u6e2c\u8a66\u7d50\u679c\u70ba\u6e96\uff0c\u4e0d\u8981\u53ea\u6191\u898f\u683c\u66f8\u7684\u793a\u610f\u5716\u4e0b\u7d50\u8ad6\u3002<\/p>\n<hr \/>\n<h2><span class=\"ez-toc-section\" id=\"specifications-and-layout-checks-for-both-approaches\"><\/span><span style=\"font-size: 18pt;\">\u5169\u7a2e\u505a\u6cd5\u5404\u81ea\u8981\u6838\u5c0d\u7684\u898f\u683c\u8207\u4f48\u5c40<\/span><span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p>\u5167\u5efa\u78c1\u6027\u8207\u7121\u78c1\u6027\u5169\u7a2eRJ45\u9023\u63a5\u5668\u505a\u6cd5\uff0c\u9078\u5b9a\u5f8c\u90fd\u8981\u56de\u5230\u898f\u683c\u66f8\u8207\u677f\u4e0a\u4f48\u5c40\u9010\u9805\u6838\u5c0d\u3002<\/p>\n<h3><span class=\"ez-toc-section\" id=\"when-choosing-integrated-magnetics-check-the-datasheet\"><\/span>\u9078\u5167\u5efa\u78c1\u6027\u6642\uff1a\u6838\u5c0d\u898f\u683c\u66f8<span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p>\u5167\u5efa\u78c1\u6027RJ45\u63d2\u5ea7\u7684\u78c1\u6027\u53c3\u6578\u51fa\u5ee0\u5373\u56fa\u5b9a\uff0c\u8981\u5148\u62ff PHY \u898f\u683c\u66f8\u7684\u78c1\u6027\u8981\u6c42\u53bb\u5c0d\u63d2\u5ea7\u898f\u683c\u66f8\uff0c\u9010\u9805\u6838\u5c0d\u56de\u6ce2\u640d\u8017\u3001\u531d\u6578\u6bd4\u516c\u5dee\u3001\u9694\u96e2\u8010\u58d3\uff0c\u4ee5\u53ca\u662f\u5426\u6a19\u793a\u652f\u63f4 PoE\u3002\u540c\u4e00\u500b\u96fb\u8def\u793a\u610f\u5716\u4e0b\u7684\u4e0d\u540c\u578b\u865f\uff0c\u8868\u73fe\u53ef\u80fd\u4e0d\u540c\uff0c\u91cf\u7522\u524d\u7528\u5be6\u969b\u7cfb\u7d71\u7684\u6e2c\u8a66\u7d50\u679c\u9a57\u8b49\uff0c\u6bd4\u53ea\u770b\u898f\u683c\u66f8\u6578\u5b57\u53ef\u9760\u3002<\/p>\n<h3><span class=\"ez-toc-section\" id=\"when-choosing-a-jack-without-magnetics-what-must-be-added-to-the-board\"><\/span>\u9078\u7121\u78c1\u6027\u63d2\u5ea7\u6642\uff1a\u677f\u4e0a\u8981\u88dc\u9f4a\u4ec0\u9ebc<span class=\"ez-toc-section-end\"><\/span><\/h3>\n<ul>\n<li>\u8b8a\u58d3\u5668\u8207\u5171\u6a21\u627c\u6d41\u5708\uff1a\u4f9d PHY \u898f\u683c\u66f8\u9078\u578b\uff0c\u710a\u5728 PHY \u8207\u63d2\u5ea7\u4e4b\u9593\u3002<\/li>\n<li>\u4e2d\u5fc3\u62bd\u982d\uff1aPHY \u7aef\u4e2d\u5fc3\u62bd\u982d\u7684\u63a5\u6cd5\u9808\u4f9d PHY \u898f\u683c\u66f8\u800c\u5b9a\u3002\u8a31\u591a\u96fb\u58d3\u6a21\u5f0f PHY \u8981\u6c42\u5404\u5c0d\u4e2d\u5fc3\u62bd\u982d\u5206\u5225\u7d93\u96fb\u5bb9\u63a5\u5730\uff0c\u4e0d\u5b9c\u81ea\u884c\u628a\u591a\u500b\u4e2d\u5fc3\u62bd\u982d\u4e26\u63a5\uff1b\u8a31\u591a\u96fb\u6d41\u6a21\u5f0f PHY \u5247\u8981\u6c42\u4e2d\u5fc3\u62bd\u982d\u63a5\u5230\u6307\u5b9a\u7684\u4f9b\u96fb\u96fb\u58d3\u3002\u4e0d\u53ef\u53ea\u6191\u9a45\u52d5\u578b\u5f0f\u6c7a\u5b9a\u63a5\u6cd5\u3002<\/li>\n<li>Bob Smith \u7d42\u7aef\uff1a\u63a5\u5728\u7dda\u7e9c\u7aef\u5404\u5c0d\u4e2d\u5fc3\u62bd\u982d\u7684\u5171\u6a21\u7d42\u7aef\u96fb\u963b\u7db2\u8def\uff0c\u7528\u4f86\u964d\u4f4e\u591a\u5c0d\u7dda\u4e4b\u9593\u7684\u5171\u6a21\u96fb\u6d41\uff1b\u96fb\u963b\u5171\u63a5\u9ede\u8207\u6a5f\u6bbc\u5730\u4e4b\u9593\u53e6\u63a5\u9ad8\u58d3\u96fb\u5bb9\uff0c\u6ffe\u9664\u7a7f\u904e\u8b8a\u58d3\u5668\u7684\u6b98\u7559\u96dc\u8a0a\u3002<\/li>\n<li>MDI \u8d70\u7dda\uff1a\u78c1\u6027\u5143\u4ef6\u6ffe\u6ce2\u4e4b\u5f8c\u5230\u63d2\u5ea7\u7684\u8d70\u7dda\uff0c\u8981\u907f\u958b\u677f\u4e0a\u96dc\u8a0a\u6e90\uff0c\u5426\u5247\u677f\u4e0a\u96dc\u8a0a\u6703\u8026\u5408\u5230\u5df2\u6ffe\u6ce2\u7684\u8a0a\u865f\u4e0a\uff0c\u9020\u6210 EMC \u554f\u984c\u3002<\/li>\n<\/ul>\n<hr \/>\n<h2><span class=\"ez-toc-section\" id=\"frequently-asked-questions\"><\/span><span style=\"font-size: 18pt;\">\u5e38\u898b\u554f\u984c<\/span><span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p>Q\uff1aRJ45\u9023\u63a5\u5668\u6c92\u6709\u5167\u5efa\u78c1\u6027\uff0c\u53ef\u4ee5\u76f4\u63a5\u63a5\u7db2\u8def\u55ce\uff1f<\/p>\n<p>A\uff1a\u901a\u5e38\u4e0d\u884c\u3002\u7121\u78c1\u6027RJ45\u9023\u63a5\u5668\u672c\u8eab\u4e0d\u542b\u8b8a\u58d3\u5668\uff0c\u5e38\u898b\u505a\u6cd5\u662f\u5728 PHY \u8207\u63d2\u5ea7\u4e4b\u9593\u53e6\u52a0\u78c1\u6027\u5143\u4ef6\u3002\u78c1\u6027\u5143\u4ef6\u8ca0\u8cac\u9694\u96e2\u8207\u5171\u6a21\u6291\u5236\uff0c\u6a19\u6e96\u6c92\u6709\u660e\u6587\u898f\u5b9a\u4e00\u5b9a\u8981\u7528\uff0c\u4f46\u78c1\u6027\u5143\u4ef6\u662f\u9054\u6210 1,500 V \u4ea4\u6d41\u9694\u96e2\u8010\u58d3\u6700\u5e38\u898b\u7684\u505a\u6cd5\u3002\u5c11\u6578\u5c01\u9589\u5f0f\u80cc\u677f\u6216\u77ed\u8ddd\u96e2\u4e92\u9023\u8a2d\u8a08\u6539\u7528\u96fb\u5bb9\u8026\u5408\uff0c\u4f46\u4e0d\u80fd\u50c5\u6191\u96fb\u5bb9\u8010\u58d3\u4fbf\u8996\u70ba\u7b26\u5408\u6a19\u6e96\u7684\u7db2\u8def\u57e0\uff1b\u9808\u4f9d PHY \u5ee0\u5546\u6307\u5f15\u9010\u6848\u9a57\u8b49\u9694\u96e2\u8207\u8a0a\u865f\u8868\u73fe\u3002\u524d\u8ff0\u4ea4\u6d41\u8207\u76f4\u6d41\u8010\u58d3\u6e2c\u8a66\u662f\u66ff\u4ee3\u9078\u9805\uff0c\u4e26\u975e\u5fc5\u9808\u540c\u6642\u901a\u904e\u3002<\/p>\n<p>Q\uff1aRJ45\u9023\u63a5\u5668\u8981\u652f\u63f4 PoE\uff0c\u78c1\u6027\u5143\u4ef6\u600e\u9ebc\u9078\uff1f<\/p>\n<p>A\uff1a\u652f\u63f4 PoE \u7684RJ45\u9023\u63a5\u5668\uff0c\u78c1\u6027\u5143\u4ef6\u8981\u9078\u898f\u683c\u66f8\u6a19\u793a\u652f\u63f4 PoE \u7684\u578b\u865f\u3002PoE \u4e0b\uff0cMDI \u4e0a\u7528\u4f86\u4f9b\u96fb\u7684\u7dda\u5c0d\u5e36\u6709\u5171\u6a21\u76f4\u6d41\u96fb\u58d3\uff0cBob Smith \u7d42\u7aef\u96fb\u963b\u5fc5\u9808\u7528 DC \u963b\u9694\u96fb\u5bb9\uff0c\u8207\u4f9b\u96fb\u7684\u76f4\u6d41\u96fb\u4f4d\u9694\u958b\u3002\u5167\u5efa\u78c1\u6027\u6216\u5206\u96e2\u5f0f\u90fd\u4e00\u6a23\uff0c\u9078\u578b\u6642\u5148\u78ba\u8a8d\u898f\u683c\u66f8\u7684 PoE \u6a19\u793a\u3002<\/p>\n<p>Q\uff1aRJ45\u9023\u63a5\u5668\u76848\u6838\u820712\u6838\u78c1\u6027\u5143\u4ef6\u600e\u9ebc\u9078\uff1f<\/p>\n<p>A\uff1a\u5728\u56db\u5c0d\u7dda\u7684\u5343\u5146\u4e59\u592a\u7db2\u8def\u78c1\u6027\u6a21\u7d44\u4e2d\uff0c8\u6838\u901a\u5e38\u5305\u542b\u6bcf\u5c0d\u7dda\u5404\u4e00\u9846\u8b8a\u58d3\u5668\u8207\u5171\u6a21\u627c\u6d41\u5708\uff0c12\u6838\u5247\u6bcf\u5c0d\u7dda\u53e6\u52a0\u4e00\u9846\u81ea\u8026\u8b8a\u58d3\u5668\uff0c\u5171\u4e09\u9846\u78c1\u82af\u30028\u6838\u901a\u5e38\u8f03\u4fbf\u5b9c\uff0c\u4f46\u53ef\u80fd\u9700\u8981\u8f03\u4ed4\u7d30\u7684\u4f48\u5c40\u8207 EMC \u8abf\u6574\uff1b12\u6838\u5728\u67d0\u4e9b\u96dc\u8a0a\u8f03\u5927\u7684\u7cfb\u7d71\u4e2d\u6709\u5229\u65bc\u8a2d\u8a08\u3002\u5169\u7a2e\u90fd\u8981\u4f9d PHY \u76f8\u5bb9\u6027\u3001\u662f\u5426\u652f\u63f4 PoE \u8207\u7cfb\u7d71\u5c64\u7d1a\u7684 EMC \u689d\u4ef6\u6c7a\u5b9a\uff0c\u4e0d\u80fd\u53ea\u6191\u78c1\u82af\u6578\u5224\u65b7\u3002<\/p>\n<p>Q\uff1a\u5171\u6a21\u627c\u6d41\u5708\u653e\u5728 PHY \u7aef\u9084\u662f\u7dda\u7e9c\u7aef\u6bd4\u8f03\u597d\uff1f<\/p>\n<p>A\uff1a\u4f4d\u7f6e\u9808\u4f9d\u6240\u9078 PHY \u7684\u898f\u683c\u66f8\u8207\u53c3\u8003\u8a2d\u8a08\u6c7a\u5b9a\u3002\u90e8\u5206\u5343\u5146\u4e59\u592a\u7db2\u8def PHY \u7684\u61c9\u7528\u6307\u5357\u5efa\u8b70\uff0c8\u6838\u78c1\u6027\u5143\u4ef6\u7684\u65b0\u8a2d\u8a08\u5c07\u5171\u6a21\u627c\u6d41\u5708\u653e\u5728\u8b8a\u58d3\u5668\u7684\u7dda\u7e9c\u7aef\uff0c\u56e0\u70ba\u76f8\u95dc\u6e2c\u8a66\u4e2d PHY \u7aef\u914d\u7f6e\u7684 PMA \u5408\u898f\u6ce2\u5f62\u6a21\u677f\u9918\u88d5\u8f03\u5c0f\uff1b\u9019\u4e0d\u662f\u6240\u6709 PHY \u7684\u901a\u7528\u898f\u5247\u3002\u5df2\u901a\u904e\u9069\u7528\u7cfb\u7d71\u6e2c\u8a66\u7684\u820a\u8a2d\u8a08\u4ecd\u53ef\u6cbf\u7528\u3002<\/p>\n<h2><span class=\"ez-toc-section\" id=\"choosing-an-rj45-connector-with-or-without-integrated-magnetics-start-with-board-space-and-emc-margins\"><\/span><span style=\"font-size: 18pt;\">RJ45\u9023\u63a5\u5668\u9078\u5167\u5efa\u78c1\u6027\u6216\u7121\u78c1\u6027\uff0c\u5148\u770b\u677f\u9762\u8207EMC\u9918\u88d5<\/span><span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p>RJ45\u9023\u63a5\u5668\u8981\u9078\u5167\u5efa\u78c1\u6027\u9084\u662f\u7121\u78c1\u6027\u6b3e\uff0c\u5148\u770b\u677f\u9762\u8207\u96f6\u4ef6\u6578\uff0c\u518d\u770b EMC \u9918\u88d5\u3001\u91cd\u5de5\u9700\u6c42\u8207\u78c1\u6027\u53c3\u6578\u7684\u8abf\u6574\u7a7a\u9593\u3002\u677f\u9762\u7dca\u3001\u60f3\u5c11\u96f6\u4ef6\u5c31\u9078\u5167\u5efa\u78c1\u6027\uff1b\u8981\u589e\u52a0\u5171\u6a21\u6ffe\u6ce2\u7684\u8abf\u6574\u7a7a\u9593\u3001\u53ef\u53ea\u63db\u55ae\u4e00\u96f6\u4ef6\uff0c\u5c31\u9078\u7121\u78c1\u6027\u63d2\u5ea7\u642d\u5206\u96e2\u5f0f\u78c1\u6027\u5143\u4ef6\u3002<\/p>\n<p class=\"translation-block\">\u78ba\u5b9a\u677f\u9762\u5c3a\u5bf8\u3001\u57e0\u6578\u8207\u901f\u7387\u3001\u662f\u5426\u4f9b PoE \u4e4b\u5f8c\uff0c\u53ef\u4ee5\u8aee\u8a62\u83ef\u5927\u96fb\u5b50\u3002\u73fe\u6210\u578b\u865f\u7684\u898f\u683c\u5c0d\u4e0d\u4e0a\u3001\u9700\u8981\u5ba2\u88fd\u5316\u9023\u63a5\u5668\u88fd\u9020\u5546\u5354\u52a9\u6642\uff0c\u83ef\u5927\u96fb\u5b50\u4ee5 OEM\uff0fODM \u63d0\u4f9b\u5f9e\u7522\u54c1\u8a2d\u8a08\u3001\u958b\u6a21\u3001\u6253\u6a23\u3001\u6e2c\u8a66\u5230\u91cf\u7522\u7684\u4e00\u689d\u9f8d\u652f\u63f4\uff0c\u53ef\u5e36\u8457\u6574\u7406\u597d\u7684\u9700\u6c42\u4f86\u96fb\u6216\u4f86\u4fe1\uff0c\u78ba\u8a8d\u5c0d\u61c9\u578b\u865f\u8207\u5ba2\u88fd\u53ef\u884c\u6027\u3002<\/p>\n<p><strong>\u83ef\u5927\u96fb\u5b50<\/strong><\/p>\n<p>\u96fb\u8a71\uff1a886-2-2657-7778<\/p>\n<p>Email: <a href=\"mailto:inquiry@walta.com.tw\">inquiry@walta.com.tw<\/a><\/p>\n<p>\u5730\u5740\uff1a\u53f0\u5317\u5e02\u5167\u6e56\u5340\u5167\u6e56\u8def\u4e00\u6bb5360\u5df715\u865f3\u6a13\u4e4b2<\/p>","protected":false},"excerpt":{"rendered":"<p>An RJ45 Connector with integrated magnetics saves board space and reduces component count. A version without magnetics requires separate magnetics on the board but allows you to adjust the filtering and layout. When preparing the parts list for an Ethernet port, the same question often arises: should you choose an RJ45 Connector with integrated magnetics [&hellip;]<\/p>\n","protected":false},"author":4,"featured_media":4354,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"_templately_pack_id":"","_templately_imported_at":"","_templately_source":"","_templately_import_session_id":"","footnotes":""},"categories":[30],"tags":[130,464],"class_list":["post-7026","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-product-blogs","tag-rj45-connector","tag-rj45-jack-without-magnetics"],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v28.8 - https:\/\/yoast.com\/product\/yoast-seo-wordpress\/ -->\n<title>Should You Choose an RJ45 Connector with Integrated Magnetics? 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