{"id":11203,"date":"2026-07-25T03:08:43","date_gmt":"2026-07-25T03:08:43","guid":{"rendered":"https:\/\/ic-vendor.com\/drq74-101-r\/"},"modified":"2026-07-25T03:08:43","modified_gmt":"2026-07-25T03:08:43","slug":"drq74-101-r","status":"publish","type":"post","link":"https:\/\/ic-vendor.com\/ar\/drq74-101-r\/","title":{"rendered":"DRQ74-101-R"},"content":{"rendered":"

\u0646\u0638\u0631\u0629 \u0639\u0627\u0645\u0629 \u0639\u0644\u0649 \u0627\u0644\u0645\u0646\u062a\u062c<\/h2>\n

The Wurth Elektronik DRQ74-101-R is a 100\u00b5H coupled power inductor (1:1 turns ratio) in a 7.4×7.4mm shielded SMD package. Designed for SEPIC, Cuk, and flyback converter applications requiring coupled inductance.<\/p>\n

\u0627\u0644\u0645\u0648\u0627\u0635\u0641\u0627\u062a \u0627\u0644\u0631\u0626\u064a\u0633\u064a\u0629<\/h2>\n\n\n\n\n\n\n\n\n\n\n
Inductance<\/td>\n100 \u00b5H per winding<\/td>\n<\/tr>\n
Tolerance<\/td>\n\u00b130%<\/td>\n<\/tr>\n
Turns Ratio<\/td>\n1:1<\/td>\n<\/tr>\n
Rated Current<\/td>\n~0.45A per winding<\/td>\n<\/tr>\n
Saturation Current<\/td>\n~0.7A<\/td>\n<\/tr>\n
DCR Max<\/td>\n~1.73 \u03a9 per winding<\/td>\n<\/tr>\n
Operating Voltage<\/td>\n80 VDC max<\/td>\n<\/tr>\n
\u062f\u0631\u062c\u0629 \u062d\u0631\u0627\u0631\u0629 \u0627\u0644\u062a\u0634\u063a\u064a\u0644<\/td>\n-40 \u062f\u0631\u062c\u0629 \u0645\u0626\u0648\u064a\u0629 \u0625\u0644\u0649 +125 \u062f\u0631\u062c\u0629 \u0645\u0626\u0648\u064a\u0629<\/td>\n<\/tr>\n
\u0627\u0644\u062d\u0632\u0645\u0629<\/td>\n7.3×7.3×3.1mm SMD<\/td>\n<\/tr>\n<\/table>\n

\u0627\u0644\u0645\u064a\u0632\u0627\u062a<\/h2>\n
    \n
  • Coupled inductor with 1:1 turns ratio<\/li>\n
  • Magnetically shielded construction<\/li>\n
  • High saturation current capability<\/li>\n
  • Low coupling capacitance<\/li>\n

Compact 7.4mm square footprint<\/td>\n
  • RoHS compliant<\/li>\n<\/ul>\n

    \u0627\u0644\u062a\u0637\u0628\u064a\u0642\u0627\u062a<\/h2>\n
      \n
    • SEPIC and Cuk converter coupled inductor<\/li>\n
    • Flyback converter transformer<\/li>\n
    • PI filter and common-mode choke<\/li>\n
    • Multi-phase buck inductor<\/li>\n<\/ul>","protected":false},"excerpt":{"rendered":"

      Product Overview The Wurth Elektronik DRQ74-101-R is a 100\u00b5H coupled power inductor (1:1 turns ratio) in a 7.4×7.4mm shielded SMD package. Designed for SEPIC, Cuk, and flyback converter applications requiring coupled inductance. Key Specifications Inductance 100 \u00b5H per winding Tolerance \u00b130% Turns Ratio 1:1 Rated Current ~0.45A per winding Saturation Current ~0.7A DCR Max ~1.73 […]<\/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":[2477],"chip_brand":[136],"class_list":["post-11203","post","type-post","status-publish","format-standard","hentry","category-integrated-circuits-ics","category-mosfets","tag-drq74-101-r","chip_brand-vishay"],"acf":{"brief_explanation":"100uH coupled inductor, 1:1 ratio, 0.45A Irms, 7.3x7.3mm, shielded, -40 to 125C","date_code":"","package_case":"SMD (7.3x7.3x3.1mm)","in_stock":3400,"datasheet":"https:\/\/www.we-online.com\/components\/products\/datasheet\/744878101.pdf","price":"$1.50 @ 1ku","product_introduction":"The DRQ74-101-R from Wurth Elektronik is a 100\u00b5H coupled power inductor with 1:1 turns ratio in a 7.3x7.3x3.1mm shielded surface-mount package. The coupled winding design makes it ideal for SEPIC, Cuk, and flyback converter topologies where the coupled inductance reduces ripple current and component count. With 0.45A rated current, 1.73\u03a9 maximum DCR per winding, and 80VDC operating voltage, it supports a wide range of power conversion applications from -40\u00b0C to +125\u00b0C.","working_principle":"The DRQ74 uses two windings on a common ferrite core with 1:1 turns ratio. In a SEPIC converter, the coupled inductor provides the same voltage transformation as two separate inductors while reducing ripple current through mutual coupling. The magnetic coupling between windings (coupling coefficient k \u2248 0.98+) ensures that energy transfers efficiently between primary and secondary. The shielded construction contains magnetic flux to minimize EMI radiation to nearby circuit traces.","pin_description":"
      Pin<\/th>Name<\/th>Type<\/th>Description<\/th><\/tr>
      1<\/td>P1 Start<\/td>Passive<\/td>Winding 1 start<\/td><\/tr>
      2<\/td>P1 Finish<\/td>Passive<\/td>Winding 1 finish<\/td><\/tr>
      3<\/td>P2 Start<\/td>Passive<\/td>Winding 2 start<\/td><\/tr>
      4<\/td>P2 Finish<\/td>Passive<\/td>Winding 2 finish<\/td><\/tr><\/table>","application_scenarios":"
      • SEPIC converter coupled inductor<\/li>
      • Active Cuk converter inductor<\/li>
      • Low-power flyback transformer<\/li>
      • Common-mode noise filter<\/li><\/ul>","alternative_models":"
        Model<\/th>Manufacturer<\/th>Key Difference<\/th><\/tr>
        744878101<\/td>Wurth<\/td>WE-DD series equivalent<\/td><\/tr>
        DRQ127-101-R<\/td>Wurth<\/td>Larger 12.7mm package, higher current<\/td><\/tr><\/table>"},"_links":{"self":[{"href":"https:\/\/ic-vendor.com\/ar\/wp-json\/wp\/v2\/posts\/11203","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/ic-vendor.com\/ar\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/ic-vendor.com\/ar\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/ic-vendor.com\/ar\/wp-json\/wp\/v2\/users\/2"}],"replies":[{"embeddable":true,"href":"https:\/\/ic-vendor.com\/ar\/wp-json\/wp\/v2\/comments?post=11203"}],"version-history":[{"count":0,"href":"https:\/\/ic-vendor.com\/ar\/wp-json\/wp\/v2\/posts\/11203\/revisions"}],"wp:attachment":[{"href":"https:\/\/ic-vendor.com\/ar\/wp-json\/wp\/v2\/media?parent=11203"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/ic-vendor.com\/ar\/wp-json\/wp\/v2\/categories?post=11203"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/ic-vendor.com\/ar\/wp-json\/wp\/v2\/tags?post=11203"},{"taxonomy":"chip_brand","embeddable":true,"href":"https:\/\/ic-vendor.com\/ar\/wp-json\/wp\/v2\/chip_brand?post=11203"}],"curies":[{"name":"\u062f\u0628\u0644\u064a\u0648 \u0628\u064a","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}