{"id":11321,"date":"2026-07-26T04:33:22","date_gmt":"2026-07-26T04:33:22","guid":{"rendered":"https:\/\/ic-vendor.com\/xfl4020-222mec\/"},"modified":"2026-07-26T04:33:22","modified_gmt":"2026-07-26T04:33:22","slug":"xfl4020-222mec","status":"publish","type":"post","link":"https:\/\/ic-vendor.com\/zh\/xfl4020-222mec\/","title":{"rendered":"XFL4020-222MEC"},"content":{"rendered":"

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

The Coilcraft XFL4020-222MEC is a shielded power inductor. 2.2uH, +\/-20%, 3.20A saturation current, low DCR in a 4.0×4.0x2.0mm shielded package.<\/p>\n

\u4e3b\u8981\u89c4\u683c<\/h2>\n\n\n\n\n\n\n\n\n\n
Inductance<\/td>\n2.2 uH<\/td>\n<\/tr>\n
Tolerance<\/td>\n+\/-20%<\/td>\n<\/tr>\n
Saturation Current<\/td>\n3.20A (Isat @ 30% rolloff)<\/td>\n<\/tr>\n
Rated Current<\/td>\n2.55A (Irms, 40C rise)<\/td>\n<\/tr>\n
DCR<\/td>\n52 mOhm typ<\/td>\n<\/tr>\n
Self-Resonant Freq<\/td>\n60 MHz typ<\/td>\n<\/tr>\n
Operating Temp<\/td>\n-40 to +125C<\/td>\n<\/tr>\n
\u5305\u88c5<\/td>\n4.0×4.0x2.0mm shielded<\/td>\n<\/tr>\n<\/table>\n

\u7279\u70b9<\/h2>\n
    \n
  • Fully shielded for low EMI<\/li>\n
  • 2.2uH for step-down DC-DC<\/li>\n
  • 3.20A high saturation current<\/li>\n
  • Low 52 mOhm DCR<\/li>\n
  • Flat top for pick-and-place<\/li>\n
  • RoHS compliant<\/li>\n<\/ul>\n

    \u5e94\u7528<\/h2>\n
      \n
    • Step-down DC-DC converter<\/li>\n
    • Multi-phase buck regulator<\/li>\n
    • Point-of-load power supply<\/li>\n
    • FPGA\/CPU core voltage regulator<\/li>\n<\/ul>","protected":false},"excerpt":{"rendered":"

      Product Overview The Coilcraft XFL4020-222MEC is a shielded power inductor. 2.2uH, +\/-20%, 3.20A saturation current, low DCR in a 4.0×4.0×2.0mm shielded package. Key Specifications Inductance 2.2 uH Tolerance +\/-20% Saturation Current 3.20A (Isat @ 30% rolloff) Rated Current 2.55A (Irms, 40C rise) DCR 52 mOhm typ Self-Resonant Freq 60 MHz typ Operating Temp -40 to […]<\/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":[2596],"chip_brand":[134],"class_list":["post-11321","post","type-post","status-publish","format-standard","hentry","category-integrated-circuits-ics","category-mosfets","tag-xfl4020-222mec","chip_brand-microchip"],"acf":{"brief_explanation":"2.2uH shielded inductor, 3.20A Isat, 4x4x2mm, -40 to 125C","date_code":"","package_case":"4.0x4.0x2.0mm shielded SMD","in_stock":5246,"datasheet":"https:\/\/www.coilcraft.com\/xfl4020.html","price":"$0.30 @ 3ku","product_introduction":"The XFL4020-222MEC from Coilcraft is a 2.2uH shielded power inductor in a 4.0x4.0x2.0mm package. The fully shielded construction contains magnetic flux within the ferrite core, minimizing EMI coupling to nearby traces. 3.20A saturation current and 52 mOhm DCR provide efficient energy storage for multi-MHz step-down DC-DC converters in computing and telecom applications.","working_principle":"A flat-wire coil wound on a ferrite drum core with a ferrite shield plate covering the top and sides. The shield returns magnetic flux that would otherwise leak from the top, creating a nearly closed magnetic circuit. The flat wire minimizes AC winding loss (skin effect) at high switching frequencies. Energy E=0.5*L*I^2 is stored in the ferrite core gap during the switch-on period and delivered to the load during switch-off.","pin_description":"
      Terminal<\/th>Name<\/th>Description<\/th><\/tr>
      1<\/td>T1<\/td>Winding start<\/td><\/tr>
      2<\/td>T2<\/td>Winding end<\/td><\/tr><\/table>","application_scenarios":"
      • CPU core voltage buck<\/li>
      • FPGA POL regulator<\/li>
      • USB PD buck converter<\/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\/11321","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=11321"}],"version-history":[{"count":0,"href":"https:\/\/ic-vendor.com\/zh\/wp-json\/wp\/v2\/posts\/11321\/revisions"}],"wp:attachment":[{"href":"https:\/\/ic-vendor.com\/zh\/wp-json\/wp\/v2\/media?parent=11321"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/ic-vendor.com\/zh\/wp-json\/wp\/v2\/categories?post=11321"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/ic-vendor.com\/zh\/wp-json\/wp\/v2\/tags?post=11321"},{"taxonomy":"chip_brand","embeddable":true,"href":"https:\/\/ic-vendor.com\/zh\/wp-json\/wp\/v2\/chip_brand?post=11321"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}