{"id":11392,"date":"2026-07-26T06:50:47","date_gmt":"2026-07-26T06:50:47","guid":{"rendered":"https:\/\/ic-vendor.com\/2542s-07tw-u\/"},"modified":"2026-07-26T06:50:47","modified_gmt":"2026-07-26T06:50:47","slug":"2542s-07tw-u","status":"publish","type":"post","link":"https:\/\/ic-vendor.com\/zh\/2542s-07tw-u\/","title":{"rendered":"2542S-07TW-U"},"content":{"rendered":"

\u4ea7\u54c1\u6982\u89c8<\/h2>\n

The Bourns 2542S-07TW-U is a surface-mount common mode choke for EMI suppression. Designed for high-speed differential lines (USB, HDMI, Ethernet).<\/p>\n

\u4e3b\u8981\u89c4\u683c<\/h2>\n\n\n\n\n\n\n\n
\u7c7b\u578b<\/td>\nCommon Mode Choke<\/td>\n<\/tr>\n
Impedance<\/td>\n~90 ohm @ 100MHz common<\/td>\n<\/tr>\n
Current Rating<\/td>\n~200mA<\/td>\n<\/tr>\n
DCR<\/td>\n~1.5 ohm max per line<\/td>\n<\/tr>\n
Operating Temp<\/td>\n-40 to +85C<\/td>\n<\/tr>\n
\u5305\u88c5<\/td>\nSMD compact<\/td>\n<\/tr>\n<\/table>\n

\u7279\u70b9<\/h2>\n
    \n
  • Common mode EMI suppression<\/li>\n
  • High-speed differential line filtering<\/li>\n
  • Low differential mode attenuation<\/li>\n
  • Compact SMD footprint<\/li>\n
  • RoHS compliant<\/li>\n<\/ul>\n

    \u5e94\u7528<\/h2>\n
      \n
    • USB EMI filtering<\/li>\n
    • HDMI common mode choke<\/li>\n
    • Ethernet PHY EMI suppression<\/li>\n
    • MIPI\/DisplayPort filtering<\/li>\n<\/ul>","protected":false},"excerpt":{"rendered":"

      Product Overview The Bourns 2542S-07TW-U is a surface-mount common mode choke for EMI suppression. Designed for high-speed differential lines (USB, HDMI, Ethernet). Key Specifications Type Common Mode Choke Impedance ~90 ohm @ 100MHz common Current Rating ~200mA DCR ~1.5 ohm max per line Operating Temp -40 to +85C Package SMD compact Features Common mode EMI […]<\/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":[13,56],"tags":[2663],"chip_brand":[220],"class_list":["post-11392","post","type-post","status-publish","format-standard","hentry","category-integrated-circuits-ics","category-mosfets","tag-2542s-07tw-u","chip_brand-bourns"],"acf":{"brief_explanation":"Common mode choke, ~90ohm @ 100MHz, SMD, -40 to 85C","date_code":"","package_case":"SMD (3.2x2.5x2.5mm)","in_stock":11042,"datasheet":"https:\/\/www.bourns.com\/","price":"$0.15 @ 3ku","product_introduction":"The 2542S-07TW-U from Bourns is a surface-mount common mode choke for EMI suppression on high-speed differential signal lines. High common mode impedance (~90 ohm at 100MHz) attenuates EMI while low differential mode impedance preserves signal integrity for USB, HDMI, and Ethernet interfaces.","working_principle":"Two windings on a ferrite core carry the differential signal in opposite directions. Differential signal flux cancels, passing the signal unimpeded. Common mode noise (same direction on both lines) adds flux, meeting high impedance for attenuation.","pin_description":"
      Pin<\/th>Name<\/th>Description<\/th><\/tr>
      1,4<\/td>Line A<\/td>Winding A<\/td><\/tr>
      2,3<\/td>Line B<\/td>Winding B<\/td><\/tr><\/table>","application_scenarios":"
      • USB EMI filter<\/li>
      • HDMI CMC<\/li>
      • Ethernet PHY<\/li><\/ul>","alternative_models":"
        Model<\/th>Manufacturer<\/th>Key Difference<\/th><\/tr><\/table>"},"_links":{"self":[{"href":"https:\/\/ic-vendor.com\/zh\/wp-json\/wp\/v2\/posts\/11392","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/ic-vendor.com\/zh\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/ic-vendor.com\/zh\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/ic-vendor.com\/zh\/wp-json\/wp\/v2\/users\/2"}],"replies":[{"embeddable":true,"href":"https:\/\/ic-vendor.com\/zh\/wp-json\/wp\/v2\/comments?post=11392"}],"version-history":[{"count":0,"href":"https:\/\/ic-vendor.com\/zh\/wp-json\/wp\/v2\/posts\/11392\/revisions"}],"wp:attachment":[{"href":"https:\/\/ic-vendor.com\/zh\/wp-json\/wp\/v2\/media?parent=11392"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/ic-vendor.com\/zh\/wp-json\/wp\/v2\/categories?post=11392"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/ic-vendor.com\/zh\/wp-json\/wp\/v2\/tags?post=11392"},{"taxonomy":"chip_brand","embeddable":true,"href":"https:\/\/ic-vendor.com\/zh\/wp-json\/wp\/v2\/chip_brand?post=11392"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}