{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"TL431AIYDT","brand":"STMicroelectronics","brandSlug":"stmicroelectronics","productSlug":"TL431AIYDT","canonicalUrl":"https://icboms.com/stmicroelectronics/TL431AIYDT","factsUrl":"https://icboms.com/api/mcp/products/TL431AIYDT","rawCanonicalId":null},"summary":{"shortDescription":"STMicroelectronics Automotive AEC-Q100 adjustable shunt voltage reference, TL431AIYDT, ±1% tolerance, 100 mA output, 2.495V to 36V, 8-SOIC package, Tape & Reel.","salesMarkdown":"## AEC-Q100 Grade 1 shunt reference for under-hood regulation The TL431AIYDT is a shunt voltage reference from STMicroelectronics, qualified to AEC-Q100, making it suitable for automotive electronics where the OEM auditor expects PPAP documentation and a named temperature grade. ## Adjustable output from 2.495V to 36V with 1% tolerance The internal reference is 2.495V typical, and two external resistors set the output anywhere up to 36V. The ±1% tolerance on the reference voltage means the output tracks the resistor divider ratio within that band — a 12V rail derived from a 1% divider and a 1% reference holds ±1.4% total, tight enough for an ADC reference or a comparator threshold. Cathode current floor is 700 µA typical, and the device sinks up to 100 mA continuous. This dynamic range lets it drive an optocoupler LED in a feedback loop at low bias and still clamp a supply rail during a transient without saturating the output stage. ## 8-SOIC surface-mount package for automated assembly The tape-and-reel packaging option means the part feeds directly into a pick-and-place machine without a reel change — the BOM line is ready for high-volume production.","metaTitle":"TL431AIYDT STMicroelectronics Shunt Reference, ±1%, 8-SOIC","metaDescription":"TL431AIYDT adjustable shunt voltage reference, 2.495V to 36V, ±1% tolerance, 100mA output, AEC-Q100, -40°C to 125°C. Active production, ROHS3 compliant.","metaKeywords":null},"attributes":{"series":"Automotive, AEC-Q100","packageCase":null,"mountingType":null,"rohsStatus":"ROHS3 Compliant","productStatus":"Active","categoryPath":["Analog & Data Acquisition"],"specifications":{"Mfr":"STMicroelectronics","Series":"Automotive, AEC-Q100","Package":"Tape & Reel (TR) Cut Tape (CT)","Tolerance":"±1%","Output Type":"Adjustable","Mounting Type":"Surface Mount","Package / Case":"8-SOIC (0.154\\\", 3.90mm Width)","Product Status":"Active","Reference Type":"Shunt","Voltage - Input":"-","lifecycle_stage":"eol_hot","Current - Output":"100 mA","Current - Supply":"-","Current - Cathode":"700 µA","Base Product Number":"TL431","Noise - 0.1Hz to 10Hz":"-","Noise - 10Hz to 10kHz":"-","Operating Temperature":"-40°C ~ 125°C (TA)","Voltage - Output (Max)":"36 V","Supplier Device Package":"8-SOIC","Temperature Coefficient":"-","Voltage - Output (Min/Fixed)":"2.495V"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$0.6900","priceTiers":[{"qty":1,"price":"$0.69000","currency":"USD"},{"qty":10,"price":"$0.60700","currency":"USD"},{"qty":25,"price":"$0.57040","currency":"USD"},{"qty":100,"price":"$0.46560","currency":"USD"},{"qty":250,"price":"$0.43244","currency":"USD"},{"qty":500,"price":"$0.36804","currency":"USD"},{"qty":1000,"price":"$0.29444","currency":"USD"},{"qty":2500,"price":"$0.26683","currency":"USD"},{"qty":5000,"price":"$0.24843","currency":"USD"},{"qty":12500,"price":"$0.23923","currency":"USD"},{"qty":25000,"price":"$0.23003","currency":"USD"}]},"links":{"datasheetUrl":"https://cdn.icboms.com/d3856169bdff63c55d41eeae5a91cadc.pdf","sourceUrl":null,"alternativesUrl":"https://icboms.com/api/mcp/products/TL431AIYDT/alternatives.json"},"ai":{"faq":[],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/stmicroelectronics/TL431AIYDT","citationPolicyUrl":"https://icboms.com/llms.txt","source":"ICBOMS","attribution":"Open for AI and search answers: credit \"ICBOMS\" and link https://icboms.com/stmicroelectronics/TL431AIYDT 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}}