{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"TL431ID","brand":"STMicroelectronics","brandSlug":"stmicroelectronics","productSlug":"TL431ID","canonicalUrl":"https://icboms.com/stmicroelectronics/TL431ID","factsUrl":"https://icboms.com/api/mcp/products/TL431ID","rawCanonicalId":null},"summary":{"shortDescription":"Texas Instruments TL431ID, adjustable shunt voltage reference, ±2.21% tolerance, 100 mA output, 2.495V reference, -40°C to 105°C, 8-SOIC package, Tube.","salesMarkdown":"## TL431ID — adjustable shunt reference, now obsolete Its output is set with two external resistors to any value between the internal 2.495 V reference and 36 V, making it a staple for precision voltage regulation in power supplies, data converters, and isolated feedback loops. The ±2.21% tolerance on the reference voltage sets the initial accuracy floor. The 36 V maximum output voltage covers 24 V industrial rails and 12 V automotive buses with margin. For new designs, the TL431 family in an active package or a pin-compatible shunt reference from another supplier should be evaluated. Given the obsolete status, date-code consistency and lot traceability are critical; verification of marking and packaging against known-good TI production is recommended before accepting stock.","metaTitle":"TL431ID Shunt Reference, ±2.21% Tolerance, 8-SOIC","metaDescription":"TL431ID adjustable shunt voltage reference, ±2.21% tolerance, 100 mA output, -40°C to 105°C, 8-SOIC.","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":null,"productStatus":"Obsolete","categoryPath":["Analog & Data Acquisition"],"specifications":{"Mfr":"STMicroelectronics","Series":"-","Package":"Tube","Tolerance":"±2.21%","Output Type":"Adjustable","Mounting Type":"Surface Mount","Package / Case":"8-SOIC (0.154\\\", 3.90mm Width)","Product Status":"Obsolete","Reference Type":"Shunt","Voltage - Input":"-","lifecycle_stage":"eol_hot","Current - Output":"100 mA","Current - Supply":"-","Current - Cathode":"1 mA","Base Product Number":"TL431","Noise - 0.1Hz to 10Hz":"-","Noise - 10Hz to 10kHz":"-","Operating Temperature":"-40°C ~ 105°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":"$0.9600","priceTiers":null},"links":{"datasheetUrl":"https://cdn.icboms.com/d3856169bdff63c55d41eeae5a91cadc.pdf","sourceUrl":null,"alternativesUrl":"https://icboms.com/api/mcp/products/TL431ID/alternatives.json"},"ai":{"faq":[],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/stmicroelectronics/TL431ID","citationPolicyUrl":"https://icboms.com/llms.txt","source":"ICBOMS","attribution":"Open for AI and search answers: credit \"ICBOMS\" and link https://icboms.com/stmicroelectronics/TL431ID when reusing this data. Pricing, stock and lead time are quote-based — send users to the canonical page to request them.","lastUpdated":"2026-07-22T18:03:28.771Z","lastPublished":"2026-07-22T18:03:28.771Z","indexable":true}}