{"id":42365,"date":"2026-06-15T21:56:47","date_gmt":"2026-06-16T02:56:47","guid":{"rendered":"https:\/\/flex.com\/?post_type=resource&#038;p=42365"},"modified":"2026-06-15T21:56:49","modified_gmt":"2026-06-16T02:56:49","slug":"bmr684-800-w-quarter-brick-dc-dc-converter-for-telecom-rfpa-and-datacom-applications","status":"publish","type":"resource","link":"https:\/\/flex.com\/zh\/resources\/bmr684-800-w-quarter-brick-dc-dc-converter-for-telecom-rfpa-and-datacom-applications","title":{"rendered":"BMR684\uff1a800W\u56db\u5206\u4e4b\u4e00\u7816\u578bDC\/DC\u8f6c\u6362\u5668\uff0c\u9002\u7528\u4e8e\u7535\u4fe1\u5c04\u9891\u529f\u7387\u653e\u5927\u5668\u548c\u6570\u636e\u901a\u4fe1\u5e94\u7528"},"content":{"rendered":"<div id=\"overscroll-top\" style=\"background-color: #eaeef4;\"><\/div>\n<div class=\"resource-header block\">\n\t<div class=\"container\">\n\t\t<div class=\"breadcrumb\">\n\t\t\t<a title=\"Homepage\" href=\"\/\">Flex<\/a>\n\t\t\t<svg xmlns=\"http:\/\/www.w3.org\/2000\/svg\" viewBox=\"0 0 384 512\"><path d=\"M365.3 256l-22.6 22.6-192 192L128 493.3 82.7 448l22.6-22.6L274.7 256 105.4 86.6 82.7 64 128 18.7l22.6 22.6 192 192L365.3 256z\"\/><\/svg>\n\t\t\t<a title=\"Resources\" href=\"\/resources\">Resources<\/a>\n\t\t\t<svg xmlns=\"http:\/\/www.w3.org\/2000\/svg\" viewBox=\"0 0 384 512\"><path d=\"M365.3 256l-22.6 22.6-192 192L128 493.3 82.7 448l22.6-22.6L274.7 256 105.4 86.6 82.7 64 128 18.7l22.6 22.6 192 192L365.3 256z\"\/><\/svg>\n\t\t\t<a title=\"BMR684: 800 W quarter-brick DC\/DC converter for telecom RFPA and datacom applications\">BMR684: 800 W quarter-brick DC\/DC converter for telecom RFPA and datacom applications<\/a>\n\t\t<\/div>\n\t\t<h1>BMR684: 800 W quarter-brick DC\/DC converter for telecom RFPA and datacom applications<\/h1>\n\t\t\t\t<div class=\"separator\"><\/div>\n\t\t<div class=\"details\">\n\t\t\t\t\t\t\t\t\t<div class=\"date detail\">\n\t\t\t\tPosted on<br>\n\t\t\t\t15 6 \u6708, 2026\t\t\t<\/div>\n\t\t\t\t\t\t<div class=\"categories\">\n\t\t\t\t<div class=\"categories-wrapper\">\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<span class=\"cat-tag\">Product<\/span>\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\n\t\t\t\t\t\t\t\t\t\t\t\t\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<a class=\"cat-tag\" data-cat-level=\"2\" data-destination=\"\/industries\/communications#resources\" href=\"\/industries\/communications#resources\">Communications<\/a>\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\n\t\t\t\t\t\t\t\t\t\t\t\n\t\t\t\t\t\t\t\t\t\t\t\t\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<a class=\"cat-tag\" data-cat-level=\"2\" data-destination=\"https:\/\/flex.com\/products\/power-modules#resources\" href=\"https:\/\/flex.com\/products\/power-modules#resources\">Power Modules<\/a>\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\n\t\t\t\t\t\t\t\t\t<\/div>\n\t\t\t<\/div>\n\t\t<\/div>\n\t\t\t<\/div>\n<\/div>\n\n\n\n<div class=\"sidebar block normal-sidebar\">\n\t<div class=\"container\">\n\t\t<div class=\"content\">\n\t\t\t\n\n<p><a href=\"https:\/\/flex.com\/products\/power-modules\" data-type=\"page\" data-id=\"33867\">Flex Power Modules<\/a> has introduced a new variant of the BMR684, a quarter-brick isolated DC\/DC converter designed for <a href=\"https:\/\/flex.com\/downloads\/telecom-dc-dc-solutions-brochure\">telecom radio frequency power amplifier (RFPA) applications<\/a>. <\/p>\n\n\n\n<p>The <a href=\"https:\/\/flex.com\/products\/power-modules\/series\/bmr684?order=asc&amp;order_by=part_number&amp;order_type=primary&amp;tableOnly=true&amp;series=Power%20Modules&amp;meta=series_ref:BMR684\">BMR6841120\/201<\/a> module delivers 800 W\u2014an increase of 14% over the previous generation\u2014while operating across a 36 V to 75 V input range and 50 V output. This enables telecom power system designers to achieve higher power density within a quarter-brick package, avoiding the need for a larger converter footprint.<\/p>\n\n\n\n<p>Optimized for 48 \/ 50 Vin bus voltage architectures, the converter is well-suited for space-constrained designs where thermal performance and power density are critical. The converter achieves up to 96% efficiency at full load and supports baseplate operating temperatures of up to 100\u00b0C.<\/p>\n\n\n<div id=\"id_6a310322628fd\" class=\"media block\">\n\t<div class=\"container media-right content-top\">\n\t\t<div class=\"media\" style=\"left: 0px; min-width: 396px; max-width: 396px;\">\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<div class=\"image none\">\n\t\t\t\t\t\t\t<img decoding=\"async\" alt=\"BMR684\" src=\"https:\/\/flex.com\/wp-content\/uploads\/2025\/12\/BMR684-top-bottom-High-res-e1781542042988-1200x790.jpg\">\n\t\t\t\t\t\t<\/div>\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t\t<div class=\"content\" style=\"margin-right: 24px; margin-left: 0px;\">\n\t\t\t\t\n\n<p>A full-bridge topology and a thermal design optimized for heat dissipation enable reliable full-power operation in demanding applications. The module is designed for through-hole mounting using a wave solder process.<\/p>\n\n\n\n<p>The converter also features a PMBus interface for configuration and monitoring through the <a href=\"https:\/\/flex.com\/products\/power-modules\/flex-power-designer\" data-type=\"page\" data-id=\"33886\">Flex Power Designer tool<\/a>, supporting system-level control and fault reporting.<\/p>\n\n\n\t\t\t<\/div>\n\t\t\t<\/div>\n\t\n\t<script>\n\t(function () {\n\t\tlet hasRun_id_6a310322628fd = false;\n\t\tfunction updateVideoDisplay_id_6a310322628fd() {\n\t\t\tconst youtubeVideoId = \"\";\n\t\t\tconst bynderID = \"\";\n\t\t\tconst mediaType = \"image\";\n\t\t\tconst mediaVideoElement = document.getElementById('media-video-id_6a310322628fd');\n\t\t\tconst bodyClass = document.body?.className || '';\n\t\t\tlet currentLanguage = 'en';\n\t\t\t\n\t\t\tif (bodyClass.includes('translatepress-')) {\n\t\t\t\tconst match = bodyClass.match(\/translatepress-([a-z]{2})(?:_[A-Z]{2})?\/i);\n\t\t\t\tif (match) currentLanguage = match[1].toLowerCase();\n\t\t\t}\n\t\t\t\n\t\t\tconst isChineseLang = currentLanguage === 'zh';\n\t\t\tconsole.log('isChineseLang:', isChineseLang);\n\t\t\tconsole.log('Language detected:', currentLanguage);\n\t\t\tconst isValidYouTube = youtubeVideoId && \/^[A-Za-z0-9_-]{11}$\/.test(youtubeVideoId);\n\t\t\t\n\t\t\tif (!mediaVideoElement || mediaType !== \"video\") return;\n\t\t\tmediaVideoElement.innerHTML = ''; 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We appreciate your patience and look forward to sharing it with you soon.<\/p>\n\t\t\t\t\t<\/div>\n\t\t\t\t`;\n\t\t\t\tmediaVideoElement.appendChild(errorDiv);\n\t\t\t}\n\t\t}\n\t\t\n\t\tfunction runVideoInjection() {\n\t\t\tif (hasRun_id_6a310322628fd) return;\n\t\t\thasRun_id_6a310322628fd = true;\n\t\t\tupdateVideoDisplay_id_6a310322628fd();\n\t\t}\n\t\t\n\t\t\/\/ Always run on front-end\n\t\tif (document.readyState === 'loading') {\n\t\t\tdocument.addEventListener('DOMContentLoaded', runVideoInjection);\n\t\t} else {\n\t\t\trunVideoInjection();\n\t\t}\n\t\t\n\t\t\/\/ Also run in editor if available\n\t\tif (typeof wp !== 'undefined' && wp.domReady) {\n\t\t\twp.domReady(runVideoInjection);\n\t\t}\n\t})();\n\t<\/script>\n\t\n\t<script>\n\t\tdocument.addEventListener('DOMContentLoaded', function () {\n\t\t\t\n\t\t\t\/\/ Get the block element by ID\n\t\t\tvar blockElement = document.getElementById(\"id_6a310322628fd\");\n\t\t\tif (!blockElement) return;\n\t\n\t\t\t\/\/ Reveal the block\n\t\t\t(function ($) {\n\t\t\t\tScrollReveal().reveal(blockElement.querySelector(\".container .media\"), {origin: \"bottom\", distance: \"20px\", opacity: 1, duration: 1000});\n\t\t\t\tScrollReveal().reveal(blockElement.querySelector(\".container .content\"), {origin: \"bottom\", distance: \"20px\", opacity: 1, duration: 1000});\n\t\t\t}(jQuery));\n\t\t});\n\t<\/script>\n<\/div>\n\n<div class=\"spacer block\" style=\"height: 24px;\">\n\t<\/div>\n\n\n<p>Measuring 58.4 x 36.8 x 13.3 mm (2.30 x 1.45 x 0.52 in), the module provides 1500 VDC input-to-output isolation and includes built-in protections such as monotonic start-up, input under-voltage protection, output over-voltage protection, output short-circuit protection, and over-temperature protection. These features support stable operation and help protect both the converter and the system under fault conditions.<\/p>\n\n\n\n<p>The <a href=\"https:\/\/flex.com\/products\/power-modules\/series\/bmr684?order=asc&amp;order_by=part_number&amp;order_type=primary&amp;tableOnly=true&amp;series=Power%20Modules&amp;meta=series_ref:BMR684\">BMR6841120\/201<\/a> is in mass production, with samples available now.<\/p>\n\n\n\n<h3 class=\"wp-block-heading has-small-font-size\">More information<\/h3>\n\n\n\n<p class=\"link-arrow\"><a href=\"https:\/\/flex.com\/products\/power-modules\/series\/bmr684?order=asc&amp;order_by=part_number&amp;order_type=primary&amp;tableOnly=true&amp;series=Power%20Modules&amp;meta=series_ref:BMR684\">View the product page<\/a><\/p>\n\n\n\n<p class=\"link-arrow\"><a href=\"https:\/\/flex.com\/products\/power-modules\/contact-us\">Contact Flex Power Modules for more information<\/a><\/p>\n\n\n\n<h3 class=\"wp-block-heading has-small-font-size\">About Flex Power Modules<\/h3>\n\n\n\n<p><a href=\"https:\/\/flex.com\/products\/power-modules\" data-type=\"page\" data-id=\"33867\">Flex Power Modules<\/a>, a business line of Flex, is a leading manufacturer and solution provider of scalable DC\/DC power converters. The business primarily serves the data processing, communications, industrial and transportation markets with a wide range of both isolated and&nbsp;non-isolated,&nbsp;regulated&nbsp;and non-regulated solutions.&nbsp;<\/p>\n\n\n\t\t<\/div>\n\t\t<div class=\"sidebar normal-column\">\n\t\t\t\t\t\t\t\t\t<div class=\"post\">\n\t\t\t\t\t\t\t\t<a title=\"BMR317: A next-generation IBC designed for peak AI loads in an optimized footprint\" class=\"image\" href=\"https:\/\/flex.com\/zh\/resources\/bmr317-a-next-generation-ibc-designed-for-peak-ai-loads-in-an-optimized-footprint\" target=\"_self\">\n\t\t\t\t\t\t\t\t\t\t<img decoding=\"async\" alt=\"BMR317: A next-generation IBC designed for peak AI loads in an optimized footprint\" src=\"https:\/\/flex.com\/wp-content\/uploads\/2026\/05\/Product-Summary-BMR317-540x304.png\">\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<div class=\"label\">\n\t\t\t\t\t\t\tProduct\t\t\t\t\t\t<\/div>\n\t\t\t\t\t\t\t\t\t<\/a>\n\t\t\t\t<a title=\"BMR317: A next-generation IBC designed for peak AI loads in an optimized footprint\" class=\"title\" href=\"https:\/\/flex.com\/zh\/resources\/bmr317-a-next-generation-ibc-designed-for-peak-ai-loads-in-an-optimized-footprint\" target=\"_self\">\n\t\t\t\t\tBMR317: A next-generation IBC designed for peak AI loads in an optimized footprint\t\t\t\t<\/a>\n\t\t\t<\/div>\n\t\t\t\t\t\t<div class=\"post\">\n\t\t\t\t\t\t\t\t<a title=\"Megawatt racks are coming: How 800 VDC architectures reduce losses and remove constraints\" class=\"image\" href=\"https:\/\/flex.com\/zh\/resources\/megawatt-racks-are-coming-how-800-vdc-architectures-reduce-losses-and-remove-constraints\" target=\"_self\">\n\t\t\t\t\t\t\t\t\t\t<img decoding=\"async\" alt=\"Megawatt racks in a data center server room supporting 800 VDC architectures for reduced loss\" src=\"https:\/\/flex.com\/wp-content\/uploads\/2026\/04\/Server-room-Data-Center--540x304.jpg\">\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<div class=\"label\">\n\t\t\t\t\t\t\tBlog\t\t\t\t\t\t<\/div>\n\t\t\t\t\t\t\t\t\t<\/a>\n\t\t\t\t<a title=\"Megawatt racks are coming: How 800 VDC architectures reduce losses and remove constraints\" class=\"title\" href=\"https:\/\/flex.com\/zh\/resources\/megawatt-racks-are-coming-how-800-vdc-architectures-reduce-losses-and-remove-constraints\" target=\"_self\">\n\t\t\t\t\tMegawatt racks are coming: How 800 VDC architectures reduce losses and remove constraints\t\t\t\t<\/a>\n\t\t\t<\/div>\n\t\t\t\t\t\t\t\t\t\t\t<\/div>\n\t<\/div>\n<\/div>\n\n<div class=\"spacer block\" style=\"height: 84px;\">\n\t<\/div>","protected":false},"excerpt":{"rendered":"<p>\u8fd9\u6b3e\u65b0\u578b BMR684 \u662f\u4e00\u6b3e 800W \u56db\u5206\u4e4b\u4e00\u7816\u9694\u79bb\u5f0f DC\/DC \u8f6c\u6362\u5668\uff0c\u4e13\u4e3a\u7535\u4fe1 RFPA \u5e94\u7528\u800c\u8bbe\u8ba1\u3002.<\/p>","protected":false},"author":3,"featured_media":42369,"template":"","categories":[38,97],"tags":[256],"content-type":[87],"class_list":["post-42365","resource","type-resource","status-publish","has-post-thumbnail","hentry","category-communications","category-power-modules","tag-bmr684","content-type-product"],"acf":[],"_links":{"self":[{"href":"https:\/\/flex.com\/zh\/wp-json\/wp\/v2\/resource\/42365","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/flex.com\/zh\/wp-json\/wp\/v2\/resource"}],"about":[{"href":"https:\/\/flex.com\/zh\/wp-json\/wp\/v2\/types\/resource"}],"author":[{"embeddable":true,"href":"https:\/\/flex.com\/zh\/wp-json\/wp\/v2\/users\/3"}],"version-history":[{"count":2,"href":"https:\/\/flex.com\/zh\/wp-json\/wp\/v2\/resource\/42365\/revisions"}],"predecessor-version":[{"id":42373,"href":"https:\/\/flex.com\/zh\/wp-json\/wp\/v2\/resource\/42365\/revisions\/42373"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/flex.com\/zh\/wp-json\/wp\/v2\/media\/42369"}],"wp:attachment":[{"href":"https:\/\/flex.com\/zh\/wp-json\/wp\/v2\/media?parent=42365"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/flex.com\/zh\/wp-json\/wp\/v2\/categories?post=42365"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/flex.com\/zh\/wp-json\/wp\/v2\/tags?post=42365"},{"taxonomy":"content-type","embeddable":true,"href":"https:\/\/flex.com\/zh\/wp-json\/wp\/v2\/content-type?post=42365"}],"curies":[{"name":"\u53ef\u6e7f\u6027\u7c89\u5242","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}