{"id":7434,"date":"2026-06-24T05:11:12","date_gmt":"2026-06-24T05:11:12","guid":{"rendered":"https:\/\/materialparts.com\/az431an-atre1\/"},"modified":"2026-06-24T05:11:12","modified_gmt":"2026-06-24T05:11:12","slug":"az431an-atre1","status":"publish","type":"post","link":"https:\/\/materialparts.com\/zh\/az431an-atre1\/","title":{"rendered":"AZ431AN-ATRE1"},"content":{"rendered":"

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

The AZ431AN-ATRE1 from Diodes Incorporated is a programmable shunt voltage reference with 2.495V internal reference, +\/-1% initial accuracy, and 1-100mA cathode current in a SOT-23-3 package.<\/p>\n

\u4e3b\u8981\u89c4\u683c<\/h2>\n\n\n\n\n\n\n\n\n
Reference Voltage<\/td>\n2.495 V (internal, programmable to 36V)<\/td>\n<\/tr>\n
Initial Accuracy<\/td>\n+\/-1% (A grade)<\/td>\n<\/tr>\n
Temperature Drift<\/td>\n14 mV max over -40 to +85\u00b0C<\/td>\n<\/tr>\n
Cathode Current Range<\/td>\n1 mA to 100 mA<\/td>\n<\/tr>\n
Dynamic Impedance<\/td>\n0.3 Ohm typical<\/td>\n<\/tr>\n
\u5de5\u4f5c\u6e29\u5ea6<\/td>\n-40\u00b0C to +85\u00b0C<\/td>\n<\/tr>\n
\u5305\u88c5<\/td>\nSOT-23-3<\/td>\n<\/tr>\n<\/table>\n

\u7279\u70b9<\/h2>\n
    \n
  • TL431-equivalent shunt reference from Diodes Inc in SOT-23-3<\/li>\n
  • +\/-1% accuracy with 2.495V reference, cost-competitive alternative<\/li>\n<\/ul>\n

    \u5e94\u7528<\/h2>\n
      \n
    • SMPS feedback and general-purpose voltage reference<\/li>\n<\/ul>","protected":false},"excerpt":{"rendered":"

      Product Overview The AZ431AN-ATRE1 from Diodes Incorporated is a programmable shunt voltage reference with 2.495V internal reference, +\/-1% initial accuracy, and 1-100mA cathode current in a SOT-23-3 package. Key Specifications Reference Voltage 2.495 V (internal, programmable to 36V) Initial Accuracy +\/-1% (A grade) Temperature Drift 14 mV max over -40 to +85\u00b0C Cathode Current 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":[13,32],"tags":[],"chip_brand":[193],"class_list":["post-7434","post","type-post","status-publish","format-standard","hentry","category-integrated-circuits-ics","category-low-dropout-regulators-ldo","chip_brand-diodes-inc"],"acf":{"brief_explanation":"TL431-equivalent shunt Vref, +\/-1%, SOT-23-3, Diodes Inc","date_code":"","package_case":"SOT-23-3 (2.90 x 1.30 x 1.00 mm)","in_stock":9200,"datasheet":"https:\/\/www.diodes.com\/assets\/Datasheets\/AZ431A.pdf","price":"$0.14 @ 1ku","product_introduction":"The AZ431AN-ATRE1 from Diodes Incorporated is a TL431-equivalent programmable shunt voltage reference in a SOT-23-3 package. The device provides +\/-1% initial accuracy (A grade) with a 2.495V internal bandgap reference programmable to 36V, making it a pin-compatible and functionally equivalent alternative to the TI TL431AIDBZR. The 0.3 Ohm typical dynamic impedance and 1-100mA cathode current range are compatible with standard TL431 application circuits. The Diodes Inc AZ431 series offers a cost-competitive second-source option for high-volume consumer electronics and adapter SMPS designs. The ATRE1 suffix denotes the SOT-23-3 package on tape and reel.","working_principle":"The AZ431AN-ATRE1 operates identically to the TL431. The internal bandgap reference generates 2.495V. The error amplifier compares the REF pin voltage with the internal reference and drives the NPN output transistor to regulate the cathode current. External resistors set the output voltage from 2.495V to 36V. See TL431ACDBZR entry for complete working principle.","pin_description":"
      Pin<\/th>Name<\/th>Function<\/th><\/tr>
      1<\/td>REF<\/td>Reference input (2.495V threshold)<\/td><\/tr>
      2<\/td>Anode<\/td>Ground<\/td><\/tr>
      3<\/td>Cathode<\/td>Output\/shunt (1-100mA)<\/td><\/tr><\/table>","application_scenarios":"
      • Cost-competitive SMPS feedback in consumer electronics adapters<\/li><\/ul>","alternative_models":"
        Manufacturer<\/th>Part Number<\/th>Package<\/th>Notes<\/th><\/tr>
        TI<\/td>TL431AIDBZR<\/td>SOT-23-3<\/td>Original TL431, same function<\/td><\/tr>
        onsemi<\/td>KA431AZTA<\/td>TO-92<\/td>Through-hole version<\/td><\/tr>
        Diodes<\/td>AZ431BN-ATRE1<\/td>SOT-23-3<\/td>+\/-0.5% B-grade version<\/td><\/tr><\/table>"},"_links":{"self":[{"href":"https:\/\/materialparts.com\/zh\/wp-json\/wp\/v2\/posts\/7434","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=7434"}],"version-history":[{"count":0,"href":"https:\/\/materialparts.com\/zh\/wp-json\/wp\/v2\/posts\/7434\/revisions"}],"wp:attachment":[{"href":"https:\/\/materialparts.com\/zh\/wp-json\/wp\/v2\/media?parent=7434"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/materialparts.com\/zh\/wp-json\/wp\/v2\/categories?post=7434"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/materialparts.com\/zh\/wp-json\/wp\/v2\/tags?post=7434"},{"taxonomy":"chip_brand","embeddable":true,"href":"https:\/\/materialparts.com\/zh\/wp-json\/wp\/v2\/chip_brand?post=7434"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}