{"id":5608,"date":"2026-06-11T02:53:42","date_gmt":"2026-06-11T02:53:42","guid":{"rendered":"https:\/\/materialparts.com\/fdmc8878\/"},"modified":"2026-06-12T09:11:56","modified_gmt":"2026-06-12T09:11:56","slug":"fdmc8878","status":"publish","type":"post","link":"https:\/\/materialparts.com\/zh\/fdmc8878\/","title":{"rendered":"FDMC8878"},"content":{"rendered":"

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

The FDMC8878 from onsemi is a 30V, 30A N-channel MOSFET with 5.8mOhm on-resistance in a Power56 package for synchronous buck converter and motor drive applications.<\/p>\n

\u4e3b\u8981\u89c4\u683c<\/h2>\n\n\n
\u5305\u88c5<\/td>\nPower56 (5x6mm)<\/td>\n<\/tr>\n<\/table>\n

\u7279\u70b9<\/h2>\n
    \n
  • See datasheet for complete specifications<\/li>\n
  • Industry-standard package<\/li>\n<\/ul>\n

    \u5e94\u7528<\/h2>\n
      \n
    • Industrial control<\/li>\n
    • Consumer electronics<\/li>\n
    • Communication equipment<\/li>\n
    • Automotive electronics<\/li>\n<\/ul>","protected":false},"excerpt":{"rendered":"

      Product Overview The FDMC8878 from onsemi is a 30V, 30A N-channel MOSFET with 5.8mOhm on-resistance in a Power56 package for synchronous buck converter and motor drive applications. Key Specifications Package Power56 (5x6mm) Features See datasheet for complete specifications Industry-standard package Applications Industrial control Consumer electronics Communication equipment Automotive electronics<\/p>","protected":false},"author":2,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"footnotes":""},"categories":[13,56],"tags":[],"chip_brand":[144],"class_list":["post-5608","post","type-post","status-publish","format-standard","hentry","category-integrated-circuits-ics","category-mosfets","chip_brand-on"],"acf":{"brief_explanation":"N-channel MOSFET, 30V 30A, 5.8mOhm, Power56","date_code":"","package_case":"Power56 (5x6mm)","in_stock":5733,"datasheet":"https:\/\/www.onsemi.com\/pub\/Collateral\/FDMC8878-D.PDF","price":"$1.20 @ 1ku","product_introduction":"The FDMC8878 from onsemi is a 30V, 30A N-channel MOSFET with 5.8mOhm on-resistance in a Power56 package for synchronous buck converter and motor drive applications.","working_principle":"The FDMC8878 is an N-channel power MOSFET from onsemi in Power56 (5x6mm) package, rated at 30V VDSS, 30A ID, and 5.8mOhm RDS(on) at VGS=4.5V. The Power56 package is a low-profile SMD with an exposed drain pad, providing excellent thermal performance (20C\/W junction-to-PCB) and low parasitic inductance (0.5nH source inductance), critical for high-frequency switching. The logic-level gate (VGS threshold 1-2.2V) allows direct drive from 3.3V or 5V microcontrollers without a gate driver for low-frequency applications. The low gate charge (10nC at VGS=4.5V) enables fast switching: at 1A gate drive current, the rise time is approximately 10ns. The device is optimized for synchronous rectification in DC-DC buck converters: when used as the low-side switch, the 5.8mOhm RDS(on) replaces a Schottky diode, reducing conduction losses by 50-70% in high-current applications. At 20A load, the conduction loss is only 20^2 x 0.0058 = 2.3W. The device includes an integrated Schottky body diode (not standard body diode) for reduced Qrr in synchronous rectification. The -8878 suffix specifies the device variant. Applications include: synchronous buck converter low-side, battery disconnect switches, and motor drive half-bridges.","pin_description":"
      Pin<\/th>Name<\/th>Type<\/th>Function<\/th><\/tr>
      1<\/td>S<\/td>Power<\/td>Source (connects to ground or negative rail for low-side N-ch switching)<\/td><\/tr>
      2<\/td>G<\/td>Input<\/td>Gate (VGS threshold 1-2.2V, max +\/-12V, Qg=10nC at VGS=4.5V)<\/td><\/tr>
      3<\/td>D<\/td>Power<\/td>Drain (30V VDSS, 30A ID, connects to load, 5.8mOhm RDS(on) at VGS=4.5V)<\/td><\/tr><\/table>","application_scenarios":"
    • Industrial control<\/li>
    • Consumer electronics<\/li>
    • Communication equipment<\/li>
    • Automotive electronics<\/li>","alternative_models":"
      Manufacturer<\/th>Part Number<\/th>Package<\/th>Notes<\/th><\/tr>
      onsemi<\/td>FDMC8878<\/td>Power56<\/td>Same device, onsemi brand<\/td><\/tr>
      onsemi<\/td>FDMC86348<\/td>Power56<\/td>30V 27A 3.5mOhm, lower RDS(on), onsemi<\/td><\/tr>
      Infineon<\/td>BSC014N03LS<\/td>Power56<\/td>30V 33A 1.4mOhm, Infineon OptiMOS<\/td><\/tr>
      Vishay<\/td>SI7860DP-T1-E3<\/td>PowerPAK SO-8<\/td>60V 12A 16mOhm, Vishay brand<\/td><\/tr>
      Texas Instruments<\/td>CSD17312Q5<\/td>SON-5x6<\/td>30V 26A 3.7mOhm, TI brand<\/td><\/tr><\/table>"},"_links":{"self":[{"href":"https:\/\/materialparts.com\/zh\/wp-json\/wp\/v2\/posts\/5608","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/materialparts.com\/zh\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/materialparts.com\/zh\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/materialparts.com\/zh\/wp-json\/wp\/v2\/users\/2"}],"replies":[{"embeddable":true,"href":"https:\/\/materialparts.com\/zh\/wp-json\/wp\/v2\/comments?post=5608"}],"version-history":[{"count":1,"href":"https:\/\/materialparts.com\/zh\/wp-json\/wp\/v2\/posts\/5608\/revisions"}],"predecessor-version":[{"id":6191,"href":"https:\/\/materialparts.com\/zh\/wp-json\/wp\/v2\/posts\/5608\/revisions\/6191"}],"wp:attachment":[{"href":"https:\/\/materialparts.com\/zh\/wp-json\/wp\/v2\/media?parent=5608"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/materialparts.com\/zh\/wp-json\/wp\/v2\/categories?post=5608"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/materialparts.com\/zh\/wp-json\/wp\/v2\/tags?post=5608"},{"taxonomy":"chip_brand","embeddable":true,"href":"https:\/\/materialparts.com\/zh\/wp-json\/wp\/v2\/chip_brand?post=5608"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}