{"id":10456,"date":"2026-07-20T04:00:41","date_gmt":"2026-07-20T04:00:41","guid":{"rendered":"https:\/\/ic-vendor.com\/mcbf7344-472ku\/"},"modified":"2026-07-20T04:00:41","modified_gmt":"2026-07-20T04:00:41","slug":"mcbf7344-472ku","status":"publish","type":"post","link":"https:\/\/ic-vendor.com\/es\/mcbf7344-472ku\/","title":{"rendered":"MCBF7344-472KU"},"content":{"rendered":"

Productos<\/h2>\n

The MCBF7344-472KU from Multicomp Pro is a shielded SMD power inductor with 4.7mH inductance, \u00b110% tolerance (K), and a robust 7344 case size (18.54 x 15.24 x 12mm). Featuring a wirewound ferrite core construction with 0.22mm enameled wire, it achieves 0.4A RMS current rating with 4.8\u03a9 maximum DC resistance. The shielded design effectively contains magnetic flux for EMI-sensitive applications, operating from -40\u00b0C to +125\u00b0C.<\/p>\n

Especificaciones<\/h2>\n\n\n\n\n\n\n\n\n\n\n\n\n\n
Inductance<\/td>\n4.7 mH<\/td>\n<\/tr>\n
Tolerance<\/td>\n\u00b110% (K)<\/td>\n<\/tr>\n
RMS Current (Irms)<\/td>\n0.4 A (40\u00b0C temp rise)<\/td>\n<\/tr>\n
DC Resistance (DCR)<\/td>\n4.8 \u03a9 max (4.09\u03a9 typ)<\/td>\n<\/tr>\n
Test Frequency<\/td>\n100 kHz, 0.25V<\/td>\n<\/tr>\n
Core Material<\/td>\nFerrite (DR12.7 x 10C)<\/td>\n<\/tr>\n
Wire Specification<\/td>\n0.22mm diameter, UEWF 155\u00b0C class<\/td>\n<\/tr>\n
Construction<\/td>\nWirewound, shielded<\/td>\n<\/tr>\n
Case Size<\/td>\n7344 (18.54 x 15.24 x 12mm max)<\/td>\n<\/tr>\n
Mounting<\/td>\nMontaje en superficie<\/td>\n<\/tr>\n
Temperatura de funcionamiento<\/td>\n-40\u00b0C to +125\u00b0C (including self-heating)<\/td>\n<\/tr>\n
Termination<\/td>\nLead-free Sn99.3\/Cu0.7<\/td>\n<\/tr>\n<\/table>\n

Caracter\u00edsticas<\/h2>\n
    \n
  • High inductance value: 4.7mH in a standard 7344 footprint<\/li>\n
  • Shielded construction minimizes EMI radiation to nearby components<\/li>\n
  • 155\u00b0C class enameled wire for reliable high-temperature operation<\/li>\n
  • Lead-free termination (Sn99.3\/Cu0.7) for RoHS-compliant assembly<\/li>\n
  • \u00b110% tolerance (K grade) for precise circuit design<\/li>\n
  • Tested per J-STD-020B MSL 3 moisture sensitivity standards<\/li>\n<\/ul>\n

    Aplicaciones<\/h2>\n
      \n
    • EMI filter inductors in switching power supply input stages<\/li>\n
    • PFC (Power Factor Correction) boost inductors in AC-DC converters<\/li>\n
    • Audio crossover network inductors for speaker systems<\/li>\n
    • Industrial control system noise suppression filters<\/li>\n
    • Telecommunication equipment signal isolation circuits<\/li>\n<\/ul>","protected":false},"excerpt":{"rendered":"

      Product Overview The MCBF7344-472KU from Multicomp Pro is a shielded SMD power inductor with 4.7mH inductance, \u00b110% tolerance (K), and a robust 7344 case size (18.54 x 15.24 x 12mm). Featuring a wirewound ferrite core construction with 0.22mm enameled wire, it achieves 0.4A RMS current rating with 4.8\u03a9 maximum DC resistance. The shielded design effectively […]<\/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":[13,29],"tags":[1762],"chip_brand":[1761],"class_list":["post-10456","post","type-post","status-publish","format-standard","hentry","category-integrated-circuits-ics","category-power-management-ics-pmic","tag-mcbf7344-472ku","chip_brand-multicomp-pro"],"acf":{"brief_explanation":"4.7mH shielded SMD power inductor, 0.4A, 4.8\u03a9 DCR, 7344 case (18.54x15.24x12mm), ferrite core","date_code":"","package_case":"SMD 7344 (18.54 x 15.24 x 12mm max)","in_stock":2600,"datasheet":"https:\/\/www.farnell.com\/datasheets\/1289013.pdf","price":"$0.35 @ 1ku","product_introduction":"The MCBF7344-472KU from Multicomp Pro is a high-inductance shielded power inductor designed for EMI filtering, PFC, and noise suppression applications. With 4.7mH inductance in a 7344 case (18.54 x 15.24 x 12mm), it provides exceptional inductance density for line-frequency filtering and audio crossover applications. The wirewound ferrite core construction uses 0.22mm UEWF 155\u00b0C class enameled wire wound 302.5 turns, achieving 4.8\u03a9 maximum DC resistance. The shielded design contains magnetic flux within the component body, minimizing coupling to adjacent PCB traces. The lead-free Sn99.3\/Cu0.7 termination supports RoHS-compliant reflow soldering, while the -40\u00b0C to +125\u00b0C operating range ensures reliable performance in industrial environments.","working_principle":"1. High-Inductance Winding: The 4.7mH inductance is achieved through 302.5 turns of 0.22mm enameled copper wire wound on a ferrite core (DR12.7 x 10C). The high permeability ferrite material multiplies the air-core inductance by a factor of 1000+, enabling mH-range inductance in a compact footprint.\n2. Shielded Flux Path: The ferrite core provides a closed magnetic circuit that guides magnetic flux through the core material rather than through surrounding air. This shielded construction dramatically reduces radiated EMI compared to unshielded (bobbin) inductors.\n3. Current Handling: The 0.4A RMS current rating is limited by the 4.8\u03a9 DC resistance, which generates I\u00b2R heating. At rated current, the temperature rise is limited to 40\u00b0C above ambient. The 155\u00b0C wire insulation class provides thermal margin.\n4. Frequency Response: The 100kHz test frequency specification indicates the inductor is optimized for low-to-mid frequency applications. Above the self-resonant frequency, parasitic capacitance between windings causes the impedance to become capacitive.","pin_description":"
      Pin<\/th>Name<\/th>Function<\/th><\/tr>
      1<\/td>Terminal 1<\/td>Inductor terminal (non-polarized, SMD pad)<\/td><\/tr>
      2<\/td>Terminal 2<\/td>Inductor terminal (non-polarized, SMD pad)<\/td><\/tr><\/table>","application_scenarios":"
      • EMI common-mode filter inductor in AC line input of SMPS (50\/60Hz attenuation)<\/li>
      • Boost PFC inductor in 100W-300W AC-DC converter power supplies<\/li>
      • Audio crossover network low-pass filter for woofer drivers<\/li>
      • Industrial PLC analog input common-mode choke for noise rejection<\/li>
      • Telecom central office -48V DC power rail noise filter<\/li><\/ul>","alternative_models":"
        Manufacturer<\/th>Part Number<\/th>Case Size<\/th>Notes<\/th><\/tr>
        Multicomp Pro<\/td>MCBF7344-332KU<\/td>7344<\/td>3.3mH, 0.5A, same package<\/td><\/tr>
        Multicomp Pro<\/td>MCBF7344-682KU<\/td>7344<\/td>6.8mH, 0.32A, same package<\/td><\/tr>
        Wurth Elektronik<\/td>7447460472<\/td>7344<\/td>4.7mH, shielded, comparable<\/td><\/tr>
        Bourns<\/td>RLB0914-472KL<\/td>Radial<\/td>4.7mH, through-hole alternative<\/td><\/tr>
        TDK<\/td>SLF10145T-472K1R0<\/td>10x10mm<\/td>4.7mH, smaller shielded SMD<\/td><\/tr><\/table>"},"_links":{"self":[{"href":"https:\/\/ic-vendor.com\/es\/wp-json\/wp\/v2\/posts\/10456","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=10456"}],"version-history":[{"count":0,"href":"https:\/\/ic-vendor.com\/es\/wp-json\/wp\/v2\/posts\/10456\/revisions"}],"wp:attachment":[{"href":"https:\/\/ic-vendor.com\/es\/wp-json\/wp\/v2\/media?parent=10456"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/ic-vendor.com\/es\/wp-json\/wp\/v2\/categories?post=10456"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/ic-vendor.com\/es\/wp-json\/wp\/v2\/tags?post=10456"},{"taxonomy":"chip_brand","embeddable":true,"href":"https:\/\/ic-vendor.com\/es\/wp-json\/wp\/v2\/chip_brand?post=10456"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}