{"id":7428,"date":"2026-06-24T05:07:59","date_gmt":"2026-06-24T05:07:59","guid":{"rendered":"https:\/\/materialparts.com\/tl431ccdbzr\/"},"modified":"2026-06-24T05:07:59","modified_gmt":"2026-06-24T05:07:59","slug":"tl431ccdbzr","status":"publish","type":"post","link":"https:\/\/materialparts.com\/zh\/tl431ccdbzr\/","title":{"rendered":"TL431CCDBZR"},"content":{"rendered":"

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

The TL431CCDBZR from Texas Instruments is a precision programmable shunt voltage reference with 2.495V internal reference, +\/-0.5% initial accuracy, and 6mV max drift over commercial temperature range (0 to +70\u00b0C) 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+\/-0.5% (C grade)<\/td>\n<\/tr>\n
Temperature Drift<\/td>\n6 mV max over 0 to +70\u00b0C<\/td>\n<\/tr>\n
Cathode Current Range<\/td>\n1 mA to 100 mA<\/td>\n<\/tr>\n
Dynamic Impedance<\/td>\n0.2 Ohm typical<\/td>\n<\/tr>\n
\u5de5\u4f5c\u6e29\u5ea6<\/td>\n0\u00b0C to +70\u00b0C<\/td>\n<\/tr>\n
\u5305\u88c5<\/td>\nSOT-23-3<\/td>\n<\/tr>\n<\/table>\n

\u7279\u70b9<\/h2>\n
    \n
  • C-grade TL431 with +\/-0.5% accuracy and 6mV max drift (0-70\u00b0C) in SOT-23-3<\/li>\n
  • Tightest drift specification for commercial temperature range applications<\/li>\n<\/ul>\n

    \u5e94\u7528<\/h2>\n
      \n
    • High-precision voltage reference for commercial temperature range systems<\/li>\n<\/ul>","protected":false},"excerpt":{"rendered":"

      Product Overview The TL431CCDBZR from Texas Instruments is a precision programmable shunt voltage reference with 2.495V internal reference, +\/-0.5% initial accuracy, and 6mV max drift over commercial temperature range (0 to +70\u00b0C) in a SOT-23-3 package. Key Specifications Reference Voltage 2.495 V (internal, programmable to 36V) Initial Accuracy +\/-0.5% (C grade) Temperature Drift 6 mV […]<\/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":[138],"class_list":["post-7428","post","type-post","status-publish","format-standard","hentry","category-integrated-circuits-ics","category-low-dropout-regulators-ldo","chip_brand-ti"],"acf":{"brief_explanation":"TL431 C-grade shunt Vref, +\/-0.5%, 6mV drift 0-70\u00b0C, SOT-23-3","date_code":"","package_case":"SOT-23-3 (2.90 x 1.30 x 1.00 mm)","in_stock":7200,"datasheet":"https:\/\/www.ti.com\/lit\/ds\/symlink\/tl431.pdf","price":"$0.35 @ 1ku","product_introduction":"The TL431CCDBZR from Texas Instruments is the C-grade version of the TL431 precision programmable shunt voltage reference, offering the tightest temperature drift specification of 6mV maximum over the commercial temperature range (0\u00b0C to +70\u00b0C). The C grade is produced by screening devices for the tightest voltage stability over temperature, making it the preferred choice for high-precision applications operating in controlled temperature environments. The device provides +\/-0.5% initial accuracy, 2.495V internal reference programmable to 36V, 0.2 Ohm dynamic impedance, and 1-100mA cathode current range in the tiny SOT-23-3 package. The narrower 0\u00b0C to +70\u00b0C operating range allows the tighter drift specification compared to the B-grade (11mV over -40\u00b0C to +125\u00b0C).","working_principle":"Identical to the TL431ACDBZR. The C grade provides the tightest temperature drift (6mV max over 0-70\u00b0C) through the most rigorous screening of the bandgap reference stability during manufacturing. The operating temperature range is limited to 0\u00b0C to +70\u00b0C to achieve this tighter specification. All other operational characteristics are the same as the TL431 family. 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":"
      • High-precision voltage reference for commercial temp range (0-70\u00b0C)<\/li><\/ul>","alternative_models":"
        Manufacturer<\/th>Part Number<\/th>Package<\/th>Notes<\/th><\/tr>
        TI<\/td>TL431BCDBZR<\/td>SOT-23-3<\/td>B-grade, wider temp range<\/td><\/tr>
        TI<\/td>TL431ACDBZR<\/td>SOT-23-3<\/td>A-grade, lower cost<\/td><\/tr>
        TI<\/td>ATL431BCDBZR<\/td>SOT-23-3<\/td>Nanopower version, 80uA min<\/td><\/tr><\/table>"},"_links":{"self":[{"href":"https:\/\/materialparts.com\/zh\/wp-json\/wp\/v2\/posts\/7428","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=7428"}],"version-history":[{"count":0,"href":"https:\/\/materialparts.com\/zh\/wp-json\/wp\/v2\/posts\/7428\/revisions"}],"wp:attachment":[{"href":"https:\/\/materialparts.com\/zh\/wp-json\/wp\/v2\/media?parent=7428"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/materialparts.com\/zh\/wp-json\/wp\/v2\/categories?post=7428"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/materialparts.com\/zh\/wp-json\/wp\/v2\/tags?post=7428"},{"taxonomy":"chip_brand","embeddable":true,"href":"https:\/\/materialparts.com\/zh\/wp-json\/wp\/v2\/chip_brand?post=7428"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}