{"id":2746,"date":"2026-05-25T02:06:13","date_gmt":"2026-05-25T02:06:13","guid":{"rendered":"https:\/\/materialparts.com\/b340a-13-f\/"},"modified":"2026-05-25T02:06:13","modified_gmt":"2026-05-25T02:06:13","slug":"b340a-13-f","status":"publish","type":"post","link":"https:\/\/materialparts.com\/es\/b340a-13-f\/","title":{"rendered":"B340A-13-F"},"content":{"rendered":"

Productos<\/h2>\n

The B340A-13-F from Diodes Incorporated is a 3A, 40V Schottky barrier rectifier in an SMA (DO-214AC) package. With 0.5V typical forward voltage at 3A, it is designed for high-efficiency rectification in DC-DC converters and reverse polarity protection.<\/p>\n

Especificaciones<\/h2>\n\n\n\n\n\n\n\n\n\n
Tipo<\/td>\nSchottky Barrier Rectifier<\/td>\n<\/tr>\n
VRRM<\/td>\n40V<\/td>\n<\/tr>\n
IF (Average)<\/td>\n3A<\/td>\n<\/tr>\n
VF (Typical)<\/td>\n0.5V @ IF=3A<\/td>\n<\/tr>\n
VF (Maximum)<\/td>\n0.7V @ IF=3A<\/td>\n<\/tr>\n
IR (Reverse)<\/td>\n200uA @ VR=40V<\/td>\n<\/tr>\n
Paquete<\/td>\nSMA (DO-214AC)<\/td>\n<\/tr>\n
Temperatura de funcionamiento<\/td>\n-65\u00b0C to +150\u00b0C (TJ)<\/td>\n<\/tr>\n<\/table>\n

Caracter\u00edsticas<\/h2>\n
    \n
  • Low 0.5V forward voltage at 3A<\/li>\n
  • 40V reverse voltage rating<\/li>\n
  • 3A average forward current<\/li>\n
  • High surge current capability<\/li>\n
  • SMA surface-mount package<\/li>\n
  • Guard ring for over-voltage protection<\/li>\n<\/ul>\n

    Aplicaciones<\/h2>\n
      \n
    • DC-DC converter freewheeling diode<\/li>\n
    • Reverse polarity protection<\/li>\n
    • Power supply output rectification<\/li>\n
    • Battery charging circuit steering<\/li>\n
    • OR-ing diode in redundant power supplies<\/li>\n<\/ul>","protected":false},"excerpt":{"rendered":"

      Product Overview The B340A-13-F from Diodes Incorporated is a 3A, 40V Schottky barrier rectifier in an SMA (DO-214AC) package. With 0.5V typical forward voltage at 3A, it is designed for high-efficiency rectification in DC-DC converters and reverse polarity protection. Key Specifications Type Schottky Barrier Rectifier VRRM 40V IF (Average) 3A VF (Typical) 0.5V @ IF=3A […]<\/p>\n","protected":false},"author":2,"featured_media":2756,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"footnotes":""},"categories":[13,56],"tags":[],"chip_brand":[136],"class_list":["post-2746","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-integrated-circuits-ics","category-mosfets","chip_brand-vishay"],"acf":{"brief_explanation":"3A 40V Schottky diode, 0.5V VF, SMA (DO-214AC) package","date_code":"","package_case":"SMA (DO-214AC) (5.2 x 2.6 x 2.2 mm)","in_stock":13969,"datasheet":"https:\/\/www.diodes.com\/part\/detail\/B340A-13-F","price":"$0.10 @ 1ku","product_introduction":"The B340A-13-F from Diodes Incorporated is a 3A, 40V Schottky barrier rectifier in an SMA (DO-214AC) surface-mount package. The low 0.5V typical forward voltage at 3A significantly reduces conduction losses compared to silicon PN diodes, making it ideal for high-efficiency DC-DC converter freewheeling and output rectification. The 40V reverse voltage rating suits 5V and 12V power rails. A guard ring structure provides ruggedness against voltage transients. The SMA package provides reliable solder joints with minimal board space.","working_principle":"The B340A-13-F is a metal-semiconductor (Schottky) junction diode. Unlike a PN junction diode, a Schottky diode uses a metal contact on an N-type semiconductor, forming a barrier that conducts with lower forward voltage (0.5V vs 0.7V for silicon). The majority-carrier conduction mechanism eliminates stored charge, enabling fast switching with essentially zero reverse recovery time. This is critical for DC-DC converter freewheeling applications where the diode must transition from conducting to blocking very rapidly. The guard ring around the active area provides a PN junction that protects the Schottky contact from voltage transients and excessive reverse leakage.","pin_description":"
      Pin<\/th>Name<\/th>Type<\/th>Function<\/th><\/tr>
      1<\/td>Cathode<\/td>Power<\/td>Cathode (band marking side)<\/td><\/tr>
      2<\/td>Anode<\/td>Power<\/td>Anode<\/td><\/tr><\/table>","application_scenarios":"
      • Buck converter freewheeling (catch) diode<\/li>
      • Reverse battery polarity protection for 5V\/12V rails<\/li>
      • Power supply output Schottky rectification<\/li>
      • Battery charging steering diode<\/li>
      • Redundant power supply OR-ing diode<\/li><\/ul>","alternative_models":"
        Manufacturer<\/th>Part Number<\/th>Package<\/th>Notes<\/th><\/tr>
        ST<\/td>STPS3L40U<\/td>SMA<\/td>3A 40V Schottky, equivalent<\/td><\/tr>
        onsemi<\/td>MBR340<\/td>SMA<\/td>3A 40V Schottky rectifier<\/td><\/tr>
        Vishay<\/td>SS34-E3\/9AT<\/td>SMA<\/td>3A 40V Schottky, similar<\/td><\/tr>
        Diodes Inc<\/td>B340LB-13-F<\/td>SMB<\/td>3A 40V, SMB package variant<\/td><\/tr><\/table>"},"_links":{"self":[{"href":"https:\/\/materialparts.com\/es\/wp-json\/wp\/v2\/posts\/2746","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/materialparts.com\/es\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/materialparts.com\/es\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/materialparts.com\/es\/wp-json\/wp\/v2\/users\/2"}],"replies":[{"embeddable":true,"href":"https:\/\/materialparts.com\/es\/wp-json\/wp\/v2\/comments?post=2746"}],"version-history":[{"count":0,"href":"https:\/\/materialparts.com\/es\/wp-json\/wp\/v2\/posts\/2746\/revisions"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/materialparts.com\/es\/wp-json\/wp\/v2\/media\/2756"}],"wp:attachment":[{"href":"https:\/\/materialparts.com\/es\/wp-json\/wp\/v2\/media?parent=2746"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/materialparts.com\/es\/wp-json\/wp\/v2\/categories?post=2746"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/materialparts.com\/es\/wp-json\/wp\/v2\/tags?post=2746"},{"taxonomy":"chip_brand","embeddable":true,"href":"https:\/\/materialparts.com\/es\/wp-json\/wp\/v2\/chip_brand?post=2746"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}