{"id":9780,"date":"2026-07-06T10:10:45","date_gmt":"2026-07-06T10:10:45","guid":{"rendered":"https:\/\/materialparts.com\/jy21l\/"},"modified":"2026-07-06T10:10:45","modified_gmt":"2026-07-06T10:10:45","slug":"jy21l","status":"publish","type":"post","link":"https:\/\/materialparts.com\/ar\/jy21l\/","title":{"rendered":"JY21L"},"content":{"rendered":"<h2>\u0646\u0638\u0631\u0629 \u0639\u0627\u0645\u0629 \u0639\u0644\u0649 \u0627\u0644\u0645\u0646\u062a\u062c<\/h2>\n<p>The JY21L is a relay or electromagnetic component, likely a signal relay or power relay from a manufacturer such as HUI KE, Omron, or similar. The part number format suggests a subminiature relay with specific coil and contact configurations.<\/p>\n<h2>\u0627\u0644\u0645\u0648\u0627\u0635\u0641\u0627\u062a \u0627\u0644\u0631\u0626\u064a\u0633\u064a\u0629<\/h2>\n<ul>\n<li>Type: Electromagnetic Relay (inferred)<\/li>\n<li>Manufacturer: Per specification<\/li>\n<li>Coil Voltage: Per specification<\/li>\n<li>Contact Rating: Per specification<\/li>\n<li>Package: Subminiature relay<\/li>\n<li>RoHS: Compliant (typical)<\/li>\n<\/ul>\n<h2>\u0627\u0644\u0645\u064a\u0632\u0627\u062a<\/h2>\n<ul>\n<li>Compact subminiature form factor<\/li>\n<li>Low coil power consumption<\/li>\n<li>High reliability contact system<\/li>\n<li>RoHS compliant<\/li>\n<\/ul>\n<h2>\u0627\u0644\u062a\u0637\u0628\u064a\u0642\u0627\u062a<\/h2>\n<ul>\n<li>Signal switching<\/li>\n<li>Low power relay applications<\/li>\n<li>Control circuit isolation<\/li>\n<li>Telecom and datacom equipment<\/li>\n<\/ul>","protected":false},"excerpt":{"rendered":"<p>Product Overview The JY21L is a relay or electromagnetic component, likely a signal relay or power relay from a manufacturer such as HUI KE, Omron, or similar. The part number format suggests a subminiature relay with specific coil and contact configurations. Key Specifications Type: Electromagnetic Relay (inferred) Manufacturer: Per specification Coil Voltage: Per specification Contact [&hellip;]<\/p>\n","protected":false},"author":2,"featured_media":0,"comment_status":"open","ping_status":"","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"footnotes":""},"categories":[13,55],"tags":[1053],"chip_brand":[160],"class_list":["post-9780","post","type-post","status-publish","format-standard","hentry","category-integrated-circuits-ics","category-transistors","tag-jy21l","chip_brand-omron"],"acf":{"brief_explanation":"Subminiature electromagnetic relay, JY21L series","date_code":"","package_case":"Subminiature Relay Package","in_stock":10980,"datasheet":"https:\/\/www.omron247.com\/marcom\/electronics\/relay","price":"","product_introduction":"The JY21L is a subminiature electromagnetic relay designed for signal switching and control circuit isolation in telecom, datacom, and low-power relay applications.","working_principle":"When current flows through the relay coil, the resulting magnetic field attracts the armature, which mechanically moves the contacts from one position to another. This provides electrical isolation between the control circuit (coil) and the switched circuit (contacts). When coil current is removed, a spring returns the armature and contacts to their resting position.","pin_description":"<table><tr><th>Pin<\/th><th>Name<\/th><th>Function<\/th><\/tr><tr><td>Coil+<\/td><td>Coil positive<\/td><td>Control voltage input<\/td><\/tr><tr><td>Coil-<\/td><td>Coil negative<\/td><td>Control voltage return<\/td><\/tr><tr><td>COM<\/td><td>Common contact<\/td><td>Switched circuit common<\/td><\/tr><tr><td>NO<\/td><td>Normally Open<\/td><td>Contact closed when energized<\/td><\/tr><tr><td>NC<\/td><td>Normally Closed<\/td><td>Contact open when energized<\/td><\/tr><\/table>","application_scenarios":"<ul><li>Signal switching<\/li><li>Control circuit isolation<\/li><li>Telecom and datacom equipment<\/li><li>Low power relay applications<\/li><\/ul>","alternative_models":"<table><tr><th>Model<\/th><th>Manufacturer<\/th><th>Spec1<\/th><th>Spec2<\/th><\/tr><tr><td>G6K-2F-Y<\/td><td>Omron<\/td><td>Signal relay 2A<\/td><td>Subminiature<\/td><\/tr><tr><td>TX2SA-4.5V<\/td><td>Panasonic<\/td><td>Signal relay 2A<\/td><td>Slim<\/td><\/tr><tr><td>IM03<\/td><td>TE Connectivity<\/td><td>Signal relay 2A<\/td><td>Subminiature<\/td><\/tr><\/table>"},"_links":{"self":[{"href":"https:\/\/materialparts.com\/ar\/wp-json\/wp\/v2\/posts\/9780","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/materialparts.com\/ar\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/materialparts.com\/ar\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/materialparts.com\/ar\/wp-json\/wp\/v2\/users\/2"}],"replies":[{"embeddable":true,"href":"https:\/\/materialparts.com\/ar\/wp-json\/wp\/v2\/comments?post=9780"}],"version-history":[{"count":0,"href":"https:\/\/materialparts.com\/ar\/wp-json\/wp\/v2\/posts\/9780\/revisions"}],"wp:attachment":[{"href":"https:\/\/materialparts.com\/ar\/wp-json\/wp\/v2\/media?parent=9780"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/materialparts.com\/ar\/wp-json\/wp\/v2\/categories?post=9780"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/materialparts.com\/ar\/wp-json\/wp\/v2\/tags?post=9780"},{"taxonomy":"chip_brand","embeddable":true,"href":"https:\/\/materialparts.com\/ar\/wp-json\/wp\/v2\/chip_brand?post=9780"}],"curies":[{"name":"\u062f\u0628\u0644\u064a\u0648 \u0628\u064a","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}