{"id":9996,"date":"2026-07-08T08:33:09","date_gmt":"2026-07-08T08:33:09","guid":{"rendered":"https:\/\/materialparts.com\/az431an-atre1-2\/"},"modified":"2026-07-08T08:33:09","modified_gmt":"2026-07-08T08:33:09","slug":"az431an-atre1-2","status":"publish","type":"post","link":"https:\/\/materialparts.com\/zh\/az431an-atre1-2\/","title":{"rendered":"AZ431AN-ATRE1"},"content":{"rendered":"

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

The Diodes Inc AZ431AN-ATRE1 is a programmable precision shunt voltage reference in SOT-23-3 package. With 2.495V to 36V adjustable output, \u00b10.5% initial accuracy, and 1mA to 100mA operating current, it is widely used for switch-mode power supply feedback, voltage monitoring, and precision reference generation.<\/p>\n

\u4e3b\u8981\u89c4\u683c<\/h2>\n\n\n\n\n\n\n\n\n\n
Reference Voltage<\/td>\n2.495V (typical)<\/td>\n<\/tr>\n
Output Voltage Range<\/td>\n2.495V to 36V (adjustable)<\/td>\n<\/tr>\n
Initial Accuracy<\/td>\n\u00b10.5%<\/td>\n<\/tr>\n
Operating Current<\/td>\n1mA to 100mA<\/td>\n<\/tr>\n
Temperature Stability<\/td>\n8ppm\/\u00b0C (typical)<\/td>\n<\/tr>\n
Dynamic Impedance<\/td>\n0.15Ohm (typical)<\/td>\n<\/tr>\n
\u5305\u88c5<\/td>\nSOT-23-3<\/td>\n<\/tr>\n
\u5de5\u4f5c\u6e29\u5ea6<\/td>\n-40\u00b0C to +125\u00b0C<\/td>\n<\/tr>\n<\/table>\n

\u7279\u70b9<\/h2>\n
    \n
  • 2.495V to 36V adjustable output<\/li>\n
  • \u00b10.5% initial accuracy<\/li>\n
  • 8ppm\/\u00b0C temperature stability<\/li>\n
  • 0.15Ohm low dynamic impedance<\/li>\n
  • SOT-23-3 compact package<\/li>\n
  • TL431-compatible pinout<\/li>\n<\/ul>\n

    \u5e94\u7528<\/h2>\n
      \n
    • SMPS feedback voltage reference<\/li>\n
    • Voltage monitoring and detection<\/li>\n
    • Precision shunt regulator<\/li>\n
    • Adjustable Zener diode replacement<\/li>\n
    • Battery charger voltage setting<\/li>\n<\/ul>","protected":false},"excerpt":{"rendered":"

      Product Overview The Diodes Inc AZ431AN-ATRE1 is a programmable precision shunt voltage reference in SOT-23-3 package. With 2.495V to 36V adjustable output, \u00b10.5% initial accuracy, and 1mA to 100mA operating current, it is widely used for switch-mode power supply feedback, voltage monitoring, and precision reference generation. Key Specifications Reference Voltage 2.495V (typical) Output Voltage Range […]<\/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":[1289],"chip_brand":[193],"class_list":["post-9996","post","type-post","status-publish","format-standard","hentry","category-analog-linear-ics","category-integrated-circuits-ics","tag-az431an-atre1","chip_brand-diodes-inc"],"acf":{"brief_explanation":"2.495V-36V adj shunt reference, \u00b10.5%, 8ppm\/\u00b0C, SOT-23-3, Diodes AZ431 TL431-compatible","date_code":"","package_case":"SOT-23-3 (2.9 x 1.3 x 1.0mm)","in_stock":6555,"datasheet":"https:\/\/www.diodes.com\/assets\/Datasheets\/AZ431.pdf","price":"$0.10 @ 1ku","product_introduction":"The Diodes Inc AZ431AN-ATRE1 is a programmable precision shunt voltage reference in SOT-23-3 package, compatible with the industry-standard TL431. With \u00b10.5% initial accuracy and 8ppm\/\u00b0C temperature stability, it provides a cost-effective precision reference for switch-mode power supply feedback networks, voltage monitoring circuits, and adjustable shunt regulation.","working_principle":"The AZ431AN-ATRE1 is a three-terminal shunt regulator with an internal 2.495V bandgap reference and error amplifier. When the reference input (REF) voltage exceeds 2.495V, the cathode current increases, pulling the output toward the anode. By connecting the REF pin to a resistor divider from the cathode, the output voltage can be programmed from 2.495V to 36V. The \u00b10.5% accuracy and 8ppm\/\u00b0C stability ensure precise voltage regulation over temperature.","pin_description":"
      Pin<\/th>Name<\/th>Type<\/th>Function<\/th><\/tr>
      1<\/td>REF<\/td>Input<\/td>Reference input (2.495V threshold)<\/td><\/tr>
      2<\/td>Anode<\/td>Power<\/td>Anode (ground reference)<\/td><\/tr>
      3<\/td>Cathode<\/td>Output<\/td>Cathode (output)<\/td><\/tr><\/table>","application_scenarios":"
      • SMPS optocoupler feedback reference for output voltage regulation<\/li>
      • Overvoltage detection comparator reference<\/li>
      • Adjustable Zener diode replacement in bias circuits<\/li>
      • Battery charger float voltage setting<\/li>
      • LED driver current regulation reference<\/li><\/ul>","alternative_models":"
        Manufacturer<\/th>Part Number<\/th>Package<\/th>Notes<\/th><\/tr>
        TI<\/td>TL431AILPR<\/td>TO-92<\/td>TL431 industry standard<\/td><\/tr>
        onsemi<\/td>TL431ACLPREG<\/td>TO-92<\/td>TL431 equivalent<\/td><\/tr>
        Diodes Inc<\/td>AZ431BK-ATRE1<\/td>SOT-23-3<\/td>Higher accuracy \u00b10.2%<\/td><\/tr>
        ST<\/td>TS431ACILT<\/td>SOT-23-3<\/td>TL431 equivalent<\/td><\/tr>
        NXP<\/td>TL431ACDBZR<\/td>SOT-23-3<\/td>TL431 equivalent<\/td><\/tr><\/table>"},"_links":{"self":[{"href":"https:\/\/materialparts.com\/zh\/wp-json\/wp\/v2\/posts\/9996","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=9996"}],"version-history":[{"count":0,"href":"https:\/\/materialparts.com\/zh\/wp-json\/wp\/v2\/posts\/9996\/revisions"}],"wp:attachment":[{"href":"https:\/\/materialparts.com\/zh\/wp-json\/wp\/v2\/media?parent=9996"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/materialparts.com\/zh\/wp-json\/wp\/v2\/categories?post=9996"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/materialparts.com\/zh\/wp-json\/wp\/v2\/tags?post=9996"},{"taxonomy":"chip_brand","embeddable":true,"href":"https:\/\/materialparts.com\/zh\/wp-json\/wp\/v2\/chip_brand?post=9996"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}