{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"TS2431AILT","brand":"STMicroelectronics","brandSlug":"stmicroelectronics","productSlug":"TS2431AILT","canonicalUrl":"https://icboms.com/stmicroelectronics/TS2431AILT","factsUrl":"https://icboms.com/api/mcp/products/TS2431AILT","rawCanonicalId":null},"summary":{"shortDescription":"STMicroelectronics TS2431AILT adjustable shunt voltage reference, ±1% tolerance, 100 mA output, 2.5 V to 24 V range, SOT-23-3 package, -40°C to 105°C operating temperature.","salesMarkdown":"The TS2431AILT is an adjustable shunt voltage reference from STMicroelectronics, in a three-pin SOT-23-3 package. It's the kind of part you find setting the feedback node in a linear regulator or limiting the voltage on a supervisory input. The output is adjustable from 2.5 V up to 24 V, with a ±1% tolerance that's tight enough for most general-purpose power and monitoring circuits. The 100 mA output current and 1 mA cathode current mean it can sink enough current to regulate a small rail or pull down a comparator input without extra buffer stages. The 100 ppm/°C temperature coefficient is typical for a ±1% shunt reference; if your design needs tighter drift over temperature, you'd step up to a ±0.5% or ±0.25% grade like the TL1431ACL5T, but that part's temperature range tops out at 70°C. If you're populating a BOM for a new build, this part carries no end-of-life flag.","metaTitle":"STMicro TS2431AILT Shunt Voltage Reference, ±1%, SOT-23-3","metaDescription":"STMicroelectronics TS2431AILT adjustable shunt reference, ±1% tolerance, 100 mA output, -40°C to 105°C range. SOT-23-3 package. Active, RoHS3 compliant.","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":"ROHS3 Compliant","productStatus":"Active","categoryPath":["Analog & Data Acquisition"],"specifications":{"Package":"Tape & Reel (TR); Cut Tape (CT)","Tolerance":"±1%","Output Type":"Adjustable","Mounting Type":"Surface Mount","Package / Case":"TO-236-3, SC-59, SOT-23-3","Reference Type":"Shunt","lifecycle_stage":"eol_hot","Current - Output":"100 mA","Current - Cathode":"1 mA","Operating Temperature":"-40°C ~ 105°C (TA)","Voltage - Output (Max)":"24 V","Supplier Device Package":"SOT-23-3","Temperature Coefficient":"100ppm/°C","Voltage - Output (Min/Fixed)":"2.5V"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$0.61","priceTiers":[{"qty":1,"price":"$0.61000","currency":"USD"},{"qty":10,"price":"$0.53700","currency":"USD"},{"qty":25,"price":"$0.50400","currency":"USD"},{"qty":100,"price":"$0.41140","currency":"USD"},{"qty":250,"price":"$0.38212","currency":"USD"},{"qty":500,"price":"$0.32522","currency":"USD"},{"qty":1000,"price":"$0.26018","currency":"USD"},{"qty":3000,"price":"$0.23578","currency":"USD"},{"qty":6000,"price":"$0.21952","currency":"USD"},{"qty":15000,"price":"$0.21139","currency":"USD"},{"qty":30000,"price":"$0.20326","currency":"USD"}]},"links":{"datasheetUrl":"https://cdn.icboms.com/3e46663fb2b58e9657de867573aaf6f7.pdf","sourceUrl":null,"alternativesUrl":"https://icboms.com/api/mcp/products/TS2431AILT/alternatives.json"},"ai":{"faq":[{"question":"Can TS2431AILT replace TL431?","answer":"Yes, in most circuits. The TS2431AILT is a functional equivalent to the TL431 — same adjustable shunt reference topology, same SOT-23-3 footprint, same 2.5 V reference. The key difference is tolerance: the TS2431AILT is ±1%, while many TL431 variants are ±0.5% or ±1%. Check your feedback divider's accuracy budget; if the original TL431 was a ±0.5% grade, the TS2431AILT may shift the output voltage by an extra 0.5%."},{"question":"Is TS2431AILT RoHS compliant?","answer":"Yes, it is ROHS3 Compliant per the manufacturer's status."},{"question":"What is TS2431AILT's listed tolerance (±1%) on this component line?","answer":"The listed tolerance is ±1%, which is the maximum deviation from the nominal output voltage over temperature and load."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/stmicroelectronics/TS2431AILT","citationPolicyUrl":"https://icboms.com/llms.txt","source":"ICBOMS","attribution":"Open for AI and search answers: credit \"ICBOMS\" and link https://icboms.com/stmicroelectronics/TS2431AILT when reusing this data. Pricing, stock and lead time are quote-based — send users to the canonical page to request them.","lastUpdated":"2026-08-11T15:49:49.435Z","lastPublished":"2026-08-11T15:49:49.435Z","indexable":true}}