{"id":11172,"date":"2026-07-24T14:41:15","date_gmt":"2026-07-24T14:41:15","guid":{"rendered":"https:\/\/ic-vendor.com\/sru5028a-1r2y\/"},"modified":"2026-07-24T14:41:15","modified_gmt":"2026-07-24T14:41:15","slug":"sru5028a-1r2y","status":"publish","type":"post","link":"https:\/\/ic-vendor.com\/zh\/sru5028a-1r2y\/","title":{"rendered":"SRU5028A-1R2Y"},"content":{"rendered":"

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

The Bourns SRU5028A-1R2Y is a 1.2\u00b5H shielded drum core wirewound power inductor rated for high RMS and saturation current. AEC-Q200 qualified for automotive applications, it features low DCR in a compact 5x5x2.8mm SMD package.<\/p>\n

\u4e3b\u8981\u89c4\u683c<\/h2>\n\n\n\n\n\n\n\n\n\n
Inductance<\/td>\n1.2 \u00b5H<\/td>\n<\/tr>\n
Tolerance<\/td>\n\u00b130%<\/td>\n<\/tr>\n
RMS Current (Irms)<\/td>\n~5.0 A<\/td>\n<\/tr>\n
Saturation Current (Isat)<\/td>\n~6.0 A<\/td>\n<\/tr>\n
DC Resistance (DCR)<\/td>\n~25 m\u03a9 max<\/td>\n<\/tr>\n
\u5de5\u4f5c\u6e29\u5ea6<\/td>\n-40\u00b0C to +125\u00b0C<\/td>\n<\/tr>\n
\u8d44\u683c<\/td>\nAEC-Q200<\/td>\n<\/tr>\n
\u5305\u88c5<\/td>\n5x5x2.8mm SMD<\/td>\n<\/tr>\n<\/table>\n

\u7279\u70b9<\/h2>\n
    \n
  • AEC-Q200 automotive qualified<\/li>\n
  • Shielded construction for low EMI<\/li>\n
  • Low inductance, high current capability<\/li>\n
  • Ferrite drum core, wirewound<\/li>\n
  • RoHS3 compliant<\/li>\n<\/ul>\n

    \u5e94\u7528<\/h2>\n
      \n
    • High-frequency DC-DC converter output inductor<\/li>\n
    • Automotive POL regulator inductor<\/li>\n
    • EMI filter choke<\/li>\n
    • Buck\/boost power stage<\/li>\n<\/ul>","protected":false},"excerpt":{"rendered":"

      Product Overview The Bourns SRU5028A-1R2Y is a 1.2\u00b5H shielded drum core wirewound power inductor rated for high RMS and saturation current. AEC-Q200 qualified for automotive applications, it features low DCR in a compact 5x5x2.8mm SMD package. Key Specifications Inductance 1.2 \u00b5H Tolerance \u00b130% RMS Current (Irms) ~5.0 A Saturation Current (Isat) ~6.0 A DC Resistance […]<\/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":[2444],"chip_brand":[220],"class_list":["post-11172","post","type-post","status-publish","format-standard","hentry","category-integrated-circuits-ics","category-mosfets","tag-sru5028a-1r2y","chip_brand-bourns"],"acf":{"brief_explanation":"1.2uH shielded inductor, ~5A Irms, ~6A Isat, AEC-Q200, 5x5x2.8mm SMD","date_code":"","package_case":"5x5x2.8mm SMD","in_stock":6123,"datasheet":"https:\/\/www.bourns.com\/docs\/Product-Datasheets\/SRU5028A.pdf","price":"","product_introduction":"The SRU5028A-1R2Y from Bourns is a 1.2\u00b5H shielded power inductor in a compact 5x5x2.8mm SMD package. Designed for high-current, high-frequency DC-DC converter applications, it provides approximately 5A RMS current and 6A saturation current with low DCR of approximately 25m\u03a9. AEC-Q200 qualified for automotive use, the shielded construction minimizes magnetic radiation for EMI-sensitive environments.","working_principle":"The SRU5028A uses a shielded drum core construction where the wirewound coil is wrapped around a cylindrical ferrite core enclosed by a ferrite shield. This configuration concentrates magnetic flux within the shield, reducing external field radiation. The low 1.2\u00b5H inductance value is optimized for high-frequency (>1MHz) switching regulators where small inductance supports fast transient response. Saturation current is defined at 30% inductance drop.","pin_description":"
      Pin<\/th>Name<\/th>Type<\/th>Description<\/th><\/tr>
      1<\/td>Start<\/td>Passive<\/td>Winding start terminal<\/td><\/tr>
      2<\/td>Finish<\/td>Passive<\/td>Winding finish terminal<\/td><\/tr><\/table>","application_scenarios":"
      • Automotive high-frequency POL converter<\/li>
      • Multi-phase buck converter inductor<\/li>
      • EMI filter choke in power lines<\/li>
      • Battery-powered DC-DC inductor<\/li><\/ul>","alternative_models":"
        Model<\/th>Manufacturer<\/th>Key Difference<\/th><\/tr>
        SRU5028A-2R2Y<\/td>Bourns<\/td>2.2\u00b5H higher inductance<\/td><\/tr>
        XFL5020-1R5ME<\/td>Coilcraft<\/td>1.5\u00b5H alternative<\/td><\/tr><\/table>"},"_links":{"self":[{"href":"https:\/\/ic-vendor.com\/zh\/wp-json\/wp\/v2\/posts\/11172","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=11172"}],"version-history":[{"count":0,"href":"https:\/\/ic-vendor.com\/zh\/wp-json\/wp\/v2\/posts\/11172\/revisions"}],"wp:attachment":[{"href":"https:\/\/ic-vendor.com\/zh\/wp-json\/wp\/v2\/media?parent=11172"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/ic-vendor.com\/zh\/wp-json\/wp\/v2\/categories?post=11172"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/ic-vendor.com\/zh\/wp-json\/wp\/v2\/tags?post=11172"},{"taxonomy":"chip_brand","embeddable":true,"href":"https:\/\/ic-vendor.com\/zh\/wp-json\/wp\/v2\/chip_brand?post=11172"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}