{"id":10598,"date":"2026-07-20T06:38:45","date_gmt":"2026-07-20T06:38:45","guid":{"rendered":"https:\/\/ic-vendor.com\/cdr7d28mnnp-470nc\/"},"modified":"2026-07-20T06:38:45","modified_gmt":"2026-07-20T06:38:45","slug":"cdr7d28mnnp-470nc","status":"publish","type":"post","link":"https:\/\/ic-vendor.com\/ar\/cdr7d28mnnp-470nc\/","title":{"rendered":"CDR7D28MNNP-470NC"},"content":{"rendered":"

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

The CDR7D28MNNP-470NC is a 47\u00b5H shielded SMD power inductor with 1.05A saturation current and 275m\u03a9 maximum DC resistance. Featuring a metal composite core and compact 7.6 x 7.6 x 3.0mm package, it is designed for DC-DC converters and power management applications requiring low EMI and high efficiency.<\/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\n
Inductance<\/td>\n47\u00b5H<\/td>\n<\/tr>\n
Tolerance<\/td>\n\u00b125%<\/td>\n<\/tr>\n
Saturation Current (Isat)<\/td>\n1.05A<\/td>\n<\/tr>\n
DC Resistance (DCR)<\/td>\n275m\u03a9 (maximum)<\/td>\n<\/tr>\n
Core Type<\/td>\nMetal composite (shielded)<\/td>\n<\/tr>\n
Test Frequency<\/td>\n100 kHz<\/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>\n7.6 x 7.6 x 3.0 mm (SMD)<\/td>\n<\/tr>\n
Mounting<\/td>\n\u0627\u0644\u062a\u0631\u0643\u064a\u0628 \u0639\u0644\u0649 \u0627\u0644\u0633\u0637\u062d<\/td>\n<\/tr>\n
Packing<\/td>\nTape & Reel<\/td>\n<\/tr>\n<\/table>\n

\u0627\u0644\u0645\u064a\u0632\u0627\u062a<\/h2>\n
    \n
  • 47\u00b5H inductance with metal composite shielded core<\/li>\n
  • 1.05A saturation current for moderate power applications<\/li>\n
  • Low DC resistance: 275m\u03a9 maximum for high efficiency<\/li>\n
  • Magnetically shielded construction minimizes EMI<\/li>\n
  • Compact 7.6 x 7.6 x 3.0mm footprint<\/li>\n
  • Metal composite core for stable inductance vs. temperature<\/li>\n
  • Compatible with lead-free reflow soldering<\/li>\n
  • Suitable for high-frequency switching up to 1 MHz<\/li>\n<\/ul>\n

    \u0627\u0644\u062a\u0637\u0628\u064a\u0642\u0627\u062a<\/h2>\n
      \n
    • DC-DC buck\/boost converters<\/li>\n
    • Point-of-load voltage regulators<\/li>\n
    • Power management for FPGA and ASIC supplies<\/li>\n
    • \u0623\u062c\u0647\u0632\u0629 \u0645\u062d\u0645\u0648\u0644\u0629 \u062a\u0639\u0645\u0644 \u0628\u0627\u0644\u0628\u0637\u0627\u0631\u064a\u0629<\/li>\n
    • Industrial control system power supplies<\/li>\n
    • Set-top box and networking equipment<\/li>\n<\/ul>","protected":false},"excerpt":{"rendered":"

      Product Overview The CDR7D28MNNP-470NC is a 47\u00b5H shielded SMD power inductor with 1.05A saturation current and 275m\u03a9 maximum DC resistance. Featuring a metal composite core and compact 7.6 x 7.6 x 3.0mm package, it is designed for DC-DC converters and power management applications requiring low EMI and high efficiency. Key Specifications Inductance 47\u00b5H Tolerance \u00b125% […]<\/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":[57,13],"tags":[1937],"chip_brand":[1936],"class_list":["post-10598","post","type-post","status-publish","format-standard","hentry","category-insulated-gate-bipolar-transistors-igbt","category-integrated-circuits-ics","tag-cdr7d28mnnp-470nc","chip_brand-sumida"],"acf":{"brief_explanation":"47\u00b5H shielded SMD power inductor, 1.05A Isat, 275m\u03a9 DCR, metal composite, 7.6x7.6mm","date_code":"","package_case":"SMD 7.6 x 7.6 x 3.0 mm","in_stock":2840,"datasheet":"https:\/\/uploadcdn.oneyac.com\/attachments\/files\/brand_pdf\/sumidacorporation\/C6\/ED\/CDR7D28MN.pdf","price":"$0.42 @ 1ku","product_introduction":"The CDR7D28MNNP-470NC is a 47\u00b5H shielded surface-mount power inductor from the CDR7D28MN series. The device uses a metal composite core material that provides excellent magnetic shielding, preventing flux leakage that could interfere with nearby components. The inductor offers a saturation current of 1.05A and a maximum DC resistance of 275m\u03a9, making it suitable for moderate power DC-DC converter applications. The metal composite core maintains stable inductance across a wide temperature range and provides better saturation characteristics compared to traditional ferrite cores. The compact 7.6 x 7.6 x 3.0mm package enables high-density PCB layouts in portable and space-constrained applications.","working_principle":"The CDR7D28MNNP-470NC operates through electromagnetic energy storage in a switching converter:\n\n1. Energy Storage: During the switch-on phase of a DC-DC converter, current flows through the inductor coil, storing energy in the magnetic field of the metal composite core. The 47\u00b5H inductance determines the rate of current rise: di\/dt = V\/L. The metal composite core provides high saturation flux density, allowing high peak currents before inductance degradation occurs.\n\n2. Energy Release: During the switch-off phase, the inductor releases stored energy to the load through the freewheeling diode or synchronous rectifier. The low DC resistance (275m\u03a9) minimizes conduction losses (I\u00b2R), improving converter efficiency.\n\n3. Magnetic Shielding: The metal composite core material inherently shields the magnetic flux within the component body, reducing electromagnetic coupling to adjacent PCB traces and components. This enables tighter component placement without EMI concerns, critical for multi-phase and multi-output converter designs.","pin_description":"
      Pin<\/th>Name<\/th>Type<\/th>Function<\/th><\/tr>
      1<\/td>Terminal 1<\/td>Passive<\/td>Inductor terminal (no polarity)<\/td><\/tr>
      2<\/td>Terminal 2<\/td>Passive<\/td>Inductor terminal (no polarity)<\/td><\/tr><\/table>","application_scenarios":"
      • DC-DC converters: 47\u00b5H inductance suits step-down converters converting 12V to 3.3V at 0.5-1A load with 100-500 kHz switching frequency<\/li>
      • FPGA\/ASIC power: Shielded construction allows placement near sensitive digital ICs without magnetic interference affecting signal integrity<\/li>
      • Portable devices: 3.0mm profile and 7.6mm footprint enable use in tablets and ultrabooks where height clearance is limited<\/li>
      • Industrial control: Metal composite core maintains stable inductance from -40\u00b0C to +125\u00b0C for reliable operation in harsh environments<\/li><\/ul>","alternative_models":"
        Manufacturer<\/th>Part Number<\/th>Package<\/th>Notes<\/th><\/tr>
        Coilcraft<\/td>XAL7070-472MEC<\/td>7.3x7.3mm<\/td>4.7\u00b5H, shielded, high current<\/td><\/tr>
        Vishay<\/td>IHLP-6767GZ-47011<\/td>7x7mm<\/td>47\u00b5H, shielded<\/td><\/tr>
        TDK\/EPCOS<\/td>SPM6530T-470M<\/td>7.1x7.1mm<\/td>47\u00b5H, shielded<\/td><\/tr>
        Bourns<\/td>SRP7028A-470M<\/td>7.1x6.6mm<\/td>47\u00b5H, shielded<\/td><\/tr>
        W\u00fcrth<\/td>7443630470<\/td>7.3x7.3mm<\/td>47\u00b5H, shielded<\/td><\/tr>
        Murata<\/td>LQM2HPN470MJ0L<\/td>SMD<\/td>47\u00b5H, low profile<\/td><\/tr><\/table>"},"_links":{"self":[{"href":"https:\/\/ic-vendor.com\/ar\/wp-json\/wp\/v2\/posts\/10598","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=10598"}],"version-history":[{"count":0,"href":"https:\/\/ic-vendor.com\/ar\/wp-json\/wp\/v2\/posts\/10598\/revisions"}],"wp:attachment":[{"href":"https:\/\/ic-vendor.com\/ar\/wp-json\/wp\/v2\/media?parent=10598"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/ic-vendor.com\/ar\/wp-json\/wp\/v2\/categories?post=10598"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/ic-vendor.com\/ar\/wp-json\/wp\/v2\/tags?post=10598"},{"taxonomy":"chip_brand","embeddable":true,"href":"https:\/\/ic-vendor.com\/ar\/wp-json\/wp\/v2\/chip_brand?post=10598"}],"curies":[{"name":"\u062f\u0628\u0644\u064a\u0648 \u0628\u064a","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}