{"id":188260,"date":"2025-08-25T14:52:54","date_gmt":"2025-08-25T07:52:54","guid":{"rendered":"https:\/\/techmaster.com.vn\/?post_type=product&#038;p=188260"},"modified":"2025-08-25T15:00:09","modified_gmt":"2025-08-25T08:00:09","slug":"keysight-e4990a-impedance-analyzer","status":"publish","type":"product","link":"https:\/\/techmaster.com.vn\/en\/keysight-e4990a-impedance-analyzer\/","title":{"rendered":"Keysight E4990A Impedance Analyzer"},"content":{"rendered":"<h2>Keysight E4990A Impedance Analyzer \u2013 20 Hz to 10\/20\/30\/50\/120 MHz<\/h2>\n<figure id=\"attachment_188255\" aria-describedby=\"caption-attachment-188255\" style=\"width: 1156px\" class=\"wp-caption alignnone\"><a href=\"https:\/\/techmaster.com.vn\/wp-content\/uploads\/2025\/08\/Keysight-E4990A-.png\"><img loading=\"lazy\" decoding=\"async\" class=\"size-full wp-image-188255\" src=\"https:\/\/techmaster.com.vn\/wp-content\/uploads\/2025\/08\/Keysight-E4990A-.png\" alt=\"Keysight E4990A \" width=\"1156\" height=\"770\" \/><\/a><figcaption id=\"caption-attachment-188255\" class=\"wp-caption-text\">Keysight E4990A<\/figcaption><\/figure>\n<h3 data-start=\"230\" data-end=\"526\">Overview<\/h3>\n<p data-start=\"230\" data-end=\"526\">The Keysight E4990A is a precision impedance analyzer covering 20 Hz to 120 MHz with best-in-class \u00b10.045% (typ.) accuracy. Featuring a built-in \u00b140 V DC bias and wide impedance range from 25 m\u2126 to 40 M\u2126, it is designed for component, semiconductor, and materials characterization.<\/p>\n<h3 data-start=\"528\" data-end=\"744\">Applications<\/h3>\n<ul>\n<li data-start=\"528\" data-end=\"744\">Passive component evaluation (capacitors, inductors, resistors)<\/li>\n<li data-start=\"528\" data-end=\"744\">Semiconductor and material characterization<\/li>\n<li data-start=\"528\" data-end=\"744\">Quality assurance and incoming inspection<\/li>\n<li data-start=\"528\" data-end=\"744\">R&amp;D and production line testing<\/li>\n<\/ul>\n<h3 data-start=\"746\" data-end=\"776\">Technical Specifications<\/h3>\n<ul data-start=\"777\" data-end=\"1352\">\n<li data-start=\"777\" data-end=\"846\">\n<p data-start=\"779\" data-end=\"846\">Frequency Options: 20 Hz to 10\/20\/30\/50\/120 MHz (upgradeable)<\/p>\n<\/li>\n<li data-start=\"847\" data-end=\"889\">\n<p data-start=\"849\" data-end=\"889\">Accuracy: \u00b10.08% (\u00b10.045% typical)<\/p>\n<\/li>\n<li data-start=\"890\" data-end=\"950\">\n<p data-start=\"892\" data-end=\"950\">Impedance Range: 25 m\u2126 to 40 M\u2126 (10% accuracy range)<\/p>\n<\/li>\n<li data-start=\"951\" data-end=\"1060\">\n<p data-start=\"953\" data-end=\"1060\">Measurement Parameters: |Z|, |Y|, \u03b8, R, X, G, B, L, C, D, Q, Complex Z, Complex Y, Vac, Iac, Vdc, Idc<\/p>\n<\/li>\n<li data-start=\"1061\" data-end=\"1119\">\n<p data-start=\"1063\" data-end=\"1119\">Built-in Bias Source: 0 V to \u00b140 V, 0 A to \u00b1100 mA<\/p>\n<\/li>\n<li data-start=\"1120\" data-end=\"1194\">\n<p data-start=\"1122\" data-end=\"1194\">Display: 10.4-inch color LCD with 4-channel \/ 4-trace touch screen<\/p>\n<\/li>\n<li data-start=\"1195\" data-end=\"1265\">\n<p data-start=\"1197\" data-end=\"1265\">Data Analysis: Equivalent circuit analysis, limit line testing<\/p>\n<\/li>\n<li data-start=\"1266\" data-end=\"1352\">\n<p data-start=\"1268\" data-end=\"1352\">Speed: Enhanced measurement speed option (Opt. 001 for 10M\/20M\/30M\/50M models)<\/p>\n<\/li>\n<\/ul>\n<h3 data-start=\"1354\" data-end=\"1379\">Integrated Features<\/h3>\n<ul data-start=\"1380\" data-end=\"1629\">\n<li data-start=\"1380\" data-end=\"1439\">\n<p data-start=\"1382\" data-end=\"1439\">Wide frequency range suitable for diverse testing needs<\/p>\n<\/li>\n<li data-start=\"1440\" data-end=\"1511\">\n<p data-start=\"1442\" data-end=\"1511\">Built-in DC bias for advanced material and semiconductor evaluation<\/p>\n<\/li>\n<li data-start=\"1512\" data-end=\"1567\">\n<p data-start=\"1514\" data-end=\"1567\">Comprehensive data visualization and analysis tools<\/p>\n<\/li>\n<li data-start=\"1568\" data-end=\"1629\">\n<p data-start=\"1570\" data-end=\"1629\">Upgrade flexibility to expand test frequency capabilities<\/p>\n<\/li>\n<\/ul>\n","protected":false},"excerpt":{"rendered":"<h3>Highlight:<\/h3>\n<ul>\n<li>Five upgradable frequency options; 20 Hz to 10\/20\/30\/50\/120 MHz<\/li>\n<li>Basic impedance measurement accuracy of \u00b10.08% (\u00b10.045%, typ)<\/li>\n<li>25 m\u2126 to 40 M\u2126 wide impedance measurement range (10% measurement accuracy range)<\/li>\n<li>Measurement parameters: |Z|, |Y|, \u03b8, R, X, G, B, L, C, D, Q, Complex Z, Complex Y, Vac, Iac, Vdc, Idc<\/li>\n<li>Built-in DC bias range: 0 V to \u00b140 V, 0 A to \u00b1100 mA<\/li>\n<li>Enhanced measurement speed option (option 001, for 10M\/20M\/30M\/50M options only)<\/li>\n<li>4-channel and 4-trace on 10.4-inch color LCD with touch screen<\/li>\n<li>Data analysis function: Equivalent circuit analysis, limit line test<\/li>\n<\/ul>\n<p><span id=\"input_part_0\" class=\"\" data-mention=\"&lt;a href=&quot;&quot; target=&quot;&quot;&quot;&quot; class=&quot;button alert is-&quot;alert&quot; is-&quot;medium&quot;&quot;  &gt;\n    &lt;span&gt;&quot;E4990A&lt;\/span&gt;\n  &lt;\/a&gt;\n\"><a href=\"https:\/\/techmaster.com.vn\/wp-content\/uploads\/2025\/08\/E4990A-Impedance-Analyzer.pdf\" class=\"button alert is-alert is-medium\"  >\n    <span>E4990A Impedance Analyzer<\/span>\n  <\/a>\n<\/span><\/p>\n","protected":false},"featured_media":188255,"comment_status":"open","ping_status":"closed","template":"","meta":[],"product_brand":[],"product_cat":[260,274],"product_tag":[],"class_list":{"0":"post-188260","1":"product","2":"type-product","3":"status-publish","4":"has-post-thumbnail","6":"product_cat-measuring-instruments","7":"product_cat-electrical-measuring-instruments","9":"first","10":"instock","11":"shipping-taxable","12":"product-type-simple"},"yoast_head":"<!-- This site is optimized with the Yoast SEO Premium plugin v26.8 (Yoast SEO v26.8) - https:\/\/yoast.com\/product\/yoast-seo-premium-wordpress\/ -->\n<title>Keysight E4990A Impedance Analyzer - Techmaster Electronics JSC<\/title>\n<meta name=\"description\" content=\"Keysight E4990A Impedance Analyzer \u2013 precision 20 Hz to 120 MHz, wide impedance range, ideal for component, semiconductor, and materials testing.\" \/>\n<meta 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