{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"TL1431ACL5T","brand":"STMicroelectronics","brandSlug":"stmicroelectronics","productSlug":"TL1431ACL5T","canonicalUrl":"https://icboms.com/stmicroelectronics/TL1431ACL5T","factsUrl":"https://icboms.com/api/mcp/products/TL1431ACL5T","rawCanonicalId":null},"summary":{"shortDescription":"STMicroelectronics TL1431ACL5T, adjustable shunt voltage reference, ±0.25% tolerance, 100 mA output, 2.5 V to 36 V, SOT-23-5 package, -20°C to 70°C.","salesMarkdown":"## What this shunt reference delivers It holds the output at 2.5 V minimum up to 36 V maximum, programmed by two external resistors. The ±0.25% tolerance and 90 ppm/°C temperature coefficient make it a fit for precision feedback loops. Rated for 100 mA output and a minimum cathode current of 600 µA. The 100 mA ceiling sets the shunt resistor's power dissipation budget in a typical series-pass regulator or optocoupler drive circuit. The 600 µA minimum cathode current is the knee below which the reference loses regulation — the bias resistor from cathode to supply must pull at least that much to keep the part in its linear band. Design the bias resistor for worst-case supply and load so the cathode current never dips below 600 µA. ## Temperature range and where it goes That is a commercial temperature grade.","metaTitle":"STMicro TL1431ACL5T Shunt Voltage Reference, 0.25% SOT-23-5","metaDescription":"STMicroelectronics TL1431ACL5T adjustable shunt voltage reference. ±0.25% tolerance, 100 mA output, 2.5-36 V range, SOT-23-5 package. Active, ROHS3.","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":"±0.25%","Output Type":"Adjustable","Mounting Type":"Surface Mount","Package / Case":"SC-74A, SOT-753","Reference Type":"Shunt","lifecycle_stage":"eol_hot","Current - Output":"100 mA","Current - Cathode":"600 µA","Operating Temperature":"-20°C ~ 70°C (TA)","Voltage - Output (Max)":"36 V","Supplier Device Package":"SOT-23-5","Temperature Coefficient":"90ppm/°C","Voltage - Output (Min/Fixed)":"2.5V"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$0.66","priceTiers":[{"qty":1,"price":"$0.66000","currency":"USD"},{"qty":10,"price":"$0.58300","currency":"USD"},{"qty":25,"price":"$0.54800","currency":"USD"},{"qty":100,"price":"$0.44720","currency":"USD"},{"qty":250,"price":"$0.41536","currency":"USD"},{"qty":500,"price":"$0.35350","currency":"USD"},{"qty":1000,"price":"$0.28280","currency":"USD"},{"qty":3000,"price":"$0.25629","currency":"USD"},{"qty":6000,"price":"$0.23861","currency":"USD"},{"qty":15000,"price":"$0.22977","currency":"USD"},{"qty":30000,"price":"$0.22094","currency":"USD"}]},"links":{"datasheetUrl":"https://cdn.icboms.com/996cef81569de296d9e0e139436fbf9c.pdf","sourceUrl":null,"alternativesUrl":"https://icboms.com/api/mcp/products/TL1431ACL5T/alternatives.json"},"ai":{"faq":[{"question":"What is the tolerance of TL1431ACL5T?","answer":"The TL1431ACL5T has a ±0.25% tolerance, which is tighter than the standard TL431's 1% or 0.5% grades."},{"question":"Is TL1431ACL5T equivalent to TL431?","answer":"Functionally yes — both are adjustable shunt references with the same 2.5 V internal bandgap and similar output range. But the TL1431ACL5T offers a tighter ±0.25% tolerance and comes in a SOT-23-5 package, while many TL431 variants use SOT-23-3. Pinout is not identical; verify the footprint before substituting."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/stmicroelectronics/TL1431ACL5T","citationPolicyUrl":"https://icboms.com/llms.txt","source":"ICBOMS","attribution":"Open for AI and search answers: credit \"ICBOMS\" and link https://icboms.com/stmicroelectronics/TL1431ACL5T 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}}