{"id":9958,"date":"2026-07-08T07:37:12","date_gmt":"2026-07-08T07:37:12","guid":{"rendered":"https:\/\/materialparts.com\/ss34-e3-57t-2\/"},"modified":"2026-07-08T07:37:12","modified_gmt":"2026-07-08T07:37:12","slug":"ss34-e3-57t-2","status":"publish","type":"post","link":"https:\/\/materialparts.com\/ar\/ss34-e3-57t-2\/","title":{"rendered":"SS34-E3\/57T"},"content":{"rendered":"

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

The Vishay SS34-E3\/57T is a 3A, 40V Schottky rectifier diode in SMA (DO-214AC) package. With a low 0.5V forward voltage drop at 3A and fast switching capability, it is designed for high-efficiency rectification, freewheeling, and polarity protection in switch-mode power supplies, DC-DC converters, and reverse battery protection circuits.<\/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
\u0627\u0644\u0646\u0648\u0639<\/td>\nSchottky Rectifier<\/td>\n<\/tr>\n
Reverse Voltage<\/td>\n40V<\/td>\n<\/tr>\n
Average Forward Current<\/td>\n3A<\/td>\n<\/tr>\n
Forward Voltage<\/td>\n0.5V @ 3A (typical)<\/td>\n<\/tr>\n
Reverse Current<\/td>\n5uA @ 40V (typical)<\/td>\n<\/tr>\n
Peak Forward Surge<\/td>\n80A (8.3ms single half sine)<\/td>\n<\/tr>\n
\u062f\u0631\u062c\u0629 \u062d\u0631\u0627\u0631\u0629 \u0627\u0644\u062a\u0634\u063a\u064a\u0644<\/td>\n-65\u00b0C to +150\u00b0C (Tj)<\/td>\n<\/tr>\n
\u0627\u0644\u062d\u0632\u0645\u0629<\/td>\nSMA (DO-214AC)<\/td>\n<\/tr>\n
Status<\/td>\n\u0646\u0634\u0637<\/td>\n<\/tr>\n<\/table>\n

\u0627\u0644\u0645\u064a\u0632\u0627\u062a<\/h2>\n
    \n
  • Low 0.5V forward voltage for high efficiency<\/li>\n
  • 3A current handling in compact SMA package<\/li>\n
  • Fast switching with no reverse recovery<\/li>\n
  • Low power loss \/ high efficiency<\/li>\n
  • Guard ring for overvoltage protection<\/li>\n
  • RoHS compliant<\/li>\n<\/ul>\n

    \u0627\u0644\u062a\u0637\u0628\u064a\u0642\u0627\u062a<\/h2>\n
      \n
    • DC-DC converter output rectification<\/li>\n
    • Freewheeling diode in buck converters<\/li>\n
    • Reverse battery\/polarity protection<\/li>\n
    • Power supply OR-ing<\/li>\n
    • Switch-mode power supply secondary rectification<\/li>\n<\/ul>","protected":false},"excerpt":{"rendered":"

      Product Overview The Vishay SS34-E3\/57T is a 3A, 40V Schottky rectifier diode in SMA (DO-214AC) package. With a low 0.5V forward voltage drop at 3A and fast switching capability, it is designed for high-efficiency rectification, freewheeling, and polarity protection in switch-mode power supplies, DC-DC converters, and reverse battery protection circuits. Key Specifications Type Schottky Rectifier […]<\/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":[1255],"chip_brand":[136],"class_list":["post-9958","post","type-post","status-publish","format-standard","hentry","category-analog-linear-ics","category-integrated-circuits-ics","tag-ss34-e3-57t","chip_brand-vishay"],"acf":{"brief_explanation":"3A 40V Schottky rectifier, 0.5V VF, SMA, Vishay SS34 series high-efficiency diode","date_code":"","package_case":"SMA (DO-214AC, 5.2 x 2.6 x 2.2mm)","in_stock":2107,"datasheet":"https:\/\/www.vishay.com\/docs\/88920\/ss3x3.pdf","price":"$0.10 @ 1ku","product_introduction":"The Vishay SS34-E3\/57T is a 3A 40V Schottky rectifier in SMA package with 0.5V typical forward voltage at 3A. This is one of the most widely used Schottky diodes in the electronics industry, found in virtually every DC-DC converter and switch-mode power supply. The low forward voltage drop significantly reduces power dissipation compared to silicon PN junction rectifiers, improving overall system efficiency.","working_principle":"The SS34-E3\/57T uses a metal-silicon junction (Schottky barrier) instead of a P-N junction, resulting in a much lower forward voltage drop (0.5V vs. 0.9-1.1V for silicon) and essentially zero reverse recovery time. The Schottky barrier is formed between the metal anode and N-type silicon, creating a majority carrier device. This eliminates the minority carrier storage that causes reverse recovery current in P-N junction diodes, enabling very high switching speeds.","pin_description":"
      Pin<\/th>Name<\/th>Type<\/th>Function<\/th><\/tr>
      1<\/td>Cathode<\/td>Passive<\/td>Cathode (band marking)<\/td><\/tr>
      2<\/td>Anode<\/td>Passive<\/td>Anode<\/td><\/tr><\/table>","application_scenarios":"
      • DC-DC buck converter freewheeling diode<\/li>
      • Reverse polarity protection for battery-powered devices<\/li>
      • Power supply OR-ing in redundant systems<\/li>
      • SMPS secondary side rectification<\/li>
      • Solar panel reverse current blocking<\/li><\/ul>","alternative_models":"
        Manufacturer<\/th>Part Number<\/th>Package<\/th>Notes<\/th><\/tr>
        Vishay<\/td>SS36-E3\/57T<\/td>SMA<\/td>60V version<\/td><\/tr>
        onsemi<\/td>SS34<\/td>SMA<\/td>Equivalent<\/td><\/tr>
        MCC<\/td>SS34<\/td>SMA<\/td>Equivalent<\/td><\/tr>
        Vishay<\/td>SS34HE3\/57T<\/td>SMA<\/td>High-efficiency version<\/td><\/tr>
        Diodes Inc<\/td>S3B<\/td>SMA<\/td>50V alternative<\/td><\/tr><\/table>"},"_links":{"self":[{"href":"https:\/\/materialparts.com\/ar\/wp-json\/wp\/v2\/posts\/9958","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/materialparts.com\/ar\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/materialparts.com\/ar\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/materialparts.com\/ar\/wp-json\/wp\/v2\/users\/2"}],"replies":[{"embeddable":true,"href":"https:\/\/materialparts.com\/ar\/wp-json\/wp\/v2\/comments?post=9958"}],"version-history":[{"count":0,"href":"https:\/\/materialparts.com\/ar\/wp-json\/wp\/v2\/posts\/9958\/revisions"}],"wp:attachment":[{"href":"https:\/\/materialparts.com\/ar\/wp-json\/wp\/v2\/media?parent=9958"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/materialparts.com\/ar\/wp-json\/wp\/v2\/categories?post=9958"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/materialparts.com\/ar\/wp-json\/wp\/v2\/tags?post=9958"},{"taxonomy":"chip_brand","embeddable":true,"href":"https:\/\/materialparts.com\/ar\/wp-json\/wp\/v2\/chip_brand?post=9958"}],"curies":[{"name":"\u062f\u0628\u0644\u064a\u0648 \u0628\u064a","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}