{"id":10911,"date":"2026-07-21T04:03:44","date_gmt":"2026-07-21T04:03:44","guid":{"rendered":"https:\/\/ic-vendor.com\/820412711s9\/"},"modified":"2026-07-21T04:03:44","modified_gmt":"2026-07-21T04:03:44","slug":"820412711s9","status":"publish","type":"post","link":"https:\/\/ic-vendor.com\/es\/820412711s9\/","title":{"rendered":"820412711S9"},"content":{"rendered":"

Productos<\/h2>\n

The 820412711S9 is a wire wound ferrite chip inductor from Walsin Technology, part of the WLFW\/WFI series, designed for general-purpose applications requiring moderate inductance with low DCR and high Q factor. This inductor features a ferrite core construction in a compact surface-mount package, suitable for analog signal processing, LC filtering, EMI rejection, and noise suppression in a wide range of electronic circuits.<\/p>\n

Especificaciones<\/h2>\n\n\n\n\n\n\n\n\n\n
Tipo<\/td>\nWire Wound Ferrite Inductor<\/td>\n<\/tr>\n
Series<\/td>\nWLFW \/ WFI<\/td>\n<\/tr>\n
Core Material<\/td>\nFerrite<\/td>\n<\/tr>\n
Construction<\/td>\nWire Wound, Unshielded<\/td>\n<\/tr>\n
Temperatura de funcionamiento<\/td>\n-40\u00b0C ~ +125\u00b0C<\/td>\n<\/tr>\n
Aplicaci\u00f3n<\/td>\nGeneral Purpose<\/td>\n<\/tr>\n
Mounting<\/td>\nMontaje en superficie<\/td>\n<\/tr>\n
Fabricante<\/td>\nWalsin Technology<\/td>\n<\/tr>\n<\/table>\n

Caracter\u00edsticas<\/h2>\n
    \n
  • Wire wound construction with lower DCR and higher Q<\/li>\n
  • Ferrite core for effective EMI noise rejection<\/li>\n
  • General-purpose inductor for broad application coverage<\/li>\n
  • Standard chip size compatible with automated SMT assembly<\/li>\n
  • RoHS compliant and lead-free<\/li>\n<\/ul>\n

    Aplicaciones<\/h2>\n
      \n
    • LC filter networks for signal conditioning<\/li>\n
    • EMI rejection and noise suppression circuits<\/li>\n
    • Analog signal processing and impedance matching<\/li>\n
    • Power supply ripple filtering<\/li>\n
    • Consumer electronics and communication equipment<\/li>\n<\/ul>","protected":false},"excerpt":{"rendered":"

      Product Overview The 820412711S9 is a wire wound ferrite chip inductor from Walsin Technology, part of the WLFW\/WFI series, designed for general-purpose applications requiring moderate inductance with low DCR and high Q factor. This inductor features a ferrite core construction in a compact surface-mount package, suitable for analog signal processing, LC filtering, EMI rejection, and […]<\/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":[19,13],"tags":[2242],"chip_brand":[2181],"class_list":["post-10911","post","type-post","status-publish","format-standard","hentry","category-analog-linear-ics","category-integrated-circuits-ics","tag-820412711s9","chip_brand-walsin"],"acf":{"brief_explanation":"Wire wound ferrite chip inductor, WLFW series, general purpose, low DCR, high Q","date_code":"","package_case":"Surface Mount Chip Package","in_stock":3560,"datasheet":"https:\/\/www.passivecomponent.com\/products\/inductors\/","price":"","product_introduction":"The 820412711S9 from Walsin Technology is a wire wound ferrite chip inductor in the WLFW\/WFI series, designed for general-purpose electronic applications. Wire wound construction provides lower DC resistance and higher Q factor compared to multilayer alternatives, making it suitable for circuits requiring efficient energy storage and minimal resistive loss. The ferrite core material enables effective EMI noise rejection and suppression, while the compact surface-mount package supports automated PCB assembly. This inductor is widely used in LC filter networks, analog signal processing paths, and noise suppression circuits in consumer electronics and communication equipment.","working_principle":"The 820412711S9 operates on the principle of electromagnetic induction. A fine copper wire is wound around a ferrite core, creating a coil with defined inductance. When current flows through the coil, a magnetic field is generated in the ferrite core, storing energy proportional to \u00bdLI\u00b2. The ferrite core concentrates the magnetic flux, increasing inductance per unit volume compared to air-core designs. The wire wound construction inherently provides lower DCR than multilayer inductors because the copper wire has higher conductivity than the internal electrodes used in multilayer construction. In LC filter applications, the inductor works with capacitors to create frequency-selective networks that pass desired signals while attenuating unwanted noise. In EMI suppression, the inductor's impedance increases with frequency, blocking high-frequency noise from propagating through the circuit.","pin_description":"\n
      Pin<\/th>Name<\/th>Type<\/th>Function<\/th><\/tr>\n
      1<\/td>Terminal 1<\/td>Passive<\/td>Inductor winding connection<\/td><\/tr>\n
      2<\/td>Terminal 2<\/td>Passive<\/td>Inductor winding connection<\/td><\/tr>\n<\/table>\n

      Note: Inductors are non-polarized devices. Either terminal can serve as either end of the winding.<\/p>","application_scenarios":"

        \n
      • LC low-pass and band-pass filter networks in signal conditioning paths<\/li>\n
      • EMI noise suppression in power supply input\/output lines<\/li>\n
      • Impedance matching networks in RF and communication circuits<\/li>\n
      • Choke inductors for ripple filtering in DC power rails<\/li>\n
      • General-purpose energy storage in switching regulator circuits<\/li>\n<\/ul>","alternative_models":"\n
        Manufacturer<\/th>Part Number<\/th>Package<\/th>Notes<\/th><\/tr>\n
        Murata<\/td>LQG18HN series<\/td>0603<\/td>Wire wound ferrite inductor<\/td><\/tr>\n
        TDK<\/td>MLF1608 series<\/td>0603<\/td>Multilayer ferrite inductor<\/td><\/tr>\n
        Taiyo Yuden<\/td>LB2012 series<\/td>0805<\/td>Wire wound ferrite inductor<\/td><\/tr>\n
        Coilcraft<\/td>LPS4018 series<\/td>1812<\/td>Wire wound shielded inductor<\/td><\/tr>\n
        Bourns<\/td>CM322522 series<\/td>1210<\/td>Wire wound ferrite inductor<\/td><\/tr>\n<\/table>"},"_links":{"self":[{"href":"https:\/\/ic-vendor.com\/es\/wp-json\/wp\/v2\/posts\/10911","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/ic-vendor.com\/es\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/ic-vendor.com\/es\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/ic-vendor.com\/es\/wp-json\/wp\/v2\/users\/2"}],"replies":[{"embeddable":true,"href":"https:\/\/ic-vendor.com\/es\/wp-json\/wp\/v2\/comments?post=10911"}],"version-history":[{"count":0,"href":"https:\/\/ic-vendor.com\/es\/wp-json\/wp\/v2\/posts\/10911\/revisions"}],"wp:attachment":[{"href":"https:\/\/ic-vendor.com\/es\/wp-json\/wp\/v2\/media?parent=10911"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/ic-vendor.com\/es\/wp-json\/wp\/v2\/categories?post=10911"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/ic-vendor.com\/es\/wp-json\/wp\/v2\/tags?post=10911"},{"taxonomy":"chip_brand","embeddable":true,"href":"https:\/\/ic-vendor.com\/es\/wp-json\/wp\/v2\/chip_brand?post=10911"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}