{"id":7431,"date":"2026-06-24T05:11:07","date_gmt":"2026-06-24T05:11:07","guid":{"rendered":"https:\/\/materialparts.com\/tl431cidbzr\/"},"modified":"2026-06-24T05:11:07","modified_gmt":"2026-06-24T05:11:07","slug":"tl431cidbzr","status":"publish","type":"post","link":"https:\/\/materialparts.com\/ar\/tl431cidbzr\/","title":{"rendered":"TL431CIDBZR"},"content":{"rendered":"

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

The TL431CIDBZR 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

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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
\u062f\u0631\u062c\u0629 \u062d\u0631\u0627\u0631\u0629 \u0627\u0644\u062a\u0634\u063a\u064a\u0644<\/td>\n0\u00b0C to +70\u00b0C<\/td>\n<\/tr>\n
\u0627\u0644\u062d\u0632\u0645\u0629<\/td>\nSOT-23-3<\/td>\n<\/tr>\n<\/table>\n

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    \n
  • C-grade TL431 with tightest 6mV max drift over 0-70\u00b0C in SOT-23-3<\/li>\n
  • +\/-0.5% initial accuracy for high-precision commercial applications<\/li>\n<\/ul>\n

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      \n
    • High-precision voltage reference in controlled temperature environments<\/li>\n<\/ul>","protected":false},"excerpt":{"rendered":"

      Product Overview The TL431CIDBZR 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-7431","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":5400,"datasheet":"https:\/\/www.ti.com\/lit\/ds\/symlink\/tl431.pdf","price":"$0.32 @ 1ku","product_introduction":"The TL431CIDBZR from Texas Instruments is the C-grade (highest precision) version of the TL431 programmable shunt voltage reference in a SOT-23-3 package. The C grade provides +\/-0.5% initial accuracy with the tightest temperature drift specification of 6mV maximum over the 0\u00b0C to +70\u00b0C commercial temperature range. This makes it the preferred choice for high-precision voltage regulation in temperature-controlled environments such as laboratory instruments, precision power supplies, and measurement equipment. The device operates identically to other TL431 grades with 2.495V internal reference programmable to 36V, 0.2 Ohm dynamic impedance, and 1-100mA cathode current. The tighter drift is achieved through additional manufacturing screening of the bandgap reference stability.","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. The commercial temperature range (0-70\u00b0C) allows this tighter specification. 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 in temperature-controlled 0-70\u00b0C systems<\/li><\/ul>","alternative_models":"
        Manufacturer<\/th>Part Number<\/th>Package<\/th>Notes<\/th><\/tr>
        TI<\/td>TL431CCDBZR<\/td>SOT-23-3<\/td>Same C-grade, different suffix<\/td><\/tr>
        TI<\/td>TL431BIDBZR<\/td>SOT-23-3<\/td>B-grade, wider temp range<\/td><\/tr>
        TI<\/td>ATL431BCDBZR<\/td>SOT-23-3<\/td>Nanopower, 80uA min Ik<\/td><\/tr><\/table>"},"_links":{"self":[{"href":"https:\/\/materialparts.com\/ar\/wp-json\/wp\/v2\/posts\/7431","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=7431"}],"version-history":[{"count":0,"href":"https:\/\/materialparts.com\/ar\/wp-json\/wp\/v2\/posts\/7431\/revisions"}],"wp:attachment":[{"href":"https:\/\/materialparts.com\/ar\/wp-json\/wp\/v2\/media?parent=7431"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/materialparts.com\/ar\/wp-json\/wp\/v2\/categories?post=7431"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/materialparts.com\/ar\/wp-json\/wp\/v2\/tags?post=7431"},{"taxonomy":"chip_brand","embeddable":true,"href":"https:\/\/materialparts.com\/ar\/wp-json\/wp\/v2\/chip_brand?post=7431"}],"curies":[{"name":"\u062f\u0628\u0644\u064a\u0648 \u0628\u064a","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}