{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"TL431LIBEDBZRQ1","brand":"Texas Instruments","brandSlug":"texas-instruments","productSlug":"TL431LIBEDBZRQ1","canonicalUrl":"https://icboms.com/texas-instruments/TL431LIBEDBZRQ1","factsUrl":"https://icboms.com/api/mcp/products/TL431LIBEDBZRQ1","rawCanonicalId":null},"summary":{"shortDescription":"Texas Instruments TL431LIBEDBZRQ1, Automotive AEC-Q100, adjustable precision shunt reference, ±0.5% tolerance, 2.495V reference, 36V max output, 15 mA output, 600 µA cathode current, -40°C to 150°C, SOT-23-3 package.","salesMarkdown":"## Why the tighter tolerance and 150°C rating matter for your BOM The TL431LIBEDBZRQ1 is an automotive-grade (AEC-Q100) adjustable precision shunt reference from the TL431 family, but with a ±0.5% tolerance and a 150°C maximum operating temperature that the standard commercial-grade TL431 does not carry. For an under-hood ECU or a transmission control module where the reference voltage drift directly shifts the ADC reading or the comparator threshold, the tighter tolerance buys you margin against temperature and aging without adding a trim pot or a second reference. ## Reference voltage and output range The internal reference is fixed at 2.495 V (minimum output), and the output can be adjusted up to 36 V using an external resistor divider. The 15 mA output current capability and 600 µA minimum cathode current define the operating window: the divider current must exceed 600 µA to keep the shunt biased, and the total load plus divider current must stay under 15 mA. Supplied in a SOT-23-3 surface-mount package (also known as TO-236-3 / SC-59). The SOT-23-3 footprint is common and well-supported by standard PCB assembly processes. It is listed under the Automotive, AEC-Q100 series, which implies the part has been qualified to the AEC-Q100 stress tests for automotive-grade ICs. RoHS compliance is standard for TI's current production; the part number suffix does not carry a lead-free flag, so assume the standard NIPDAU finish.","metaTitle":"TL431LIBEDBZRQ1 Automotive Shunt Reference, ±0.5%, 150°C","metaDescription":"Texas Instruments TL431LIBEDBZRQ1 adjustable precision shunt reference, AEC-Q100 qualified, ±0.5% tolerance, 36V max, -40°C to 150°C, SOT-23-3.","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":null,"productStatus":"Active","categoryPath":["Analog & Data Acquisition"],"specifications":{"Mfr":"Texas Instruments","Series":"Automotive, AEC-Q100","Package":"Tape & Reel (TR); Cut Tape (CT)","Tolerance":"±0.5%","Output Type":"Adjustable","Mounting Type":"Surface Mount","Package / Case":"TO-236-3, SC-59, SOT-23-3","Product Status":"Active","Reference Type":"Shunt","Voltage - Input":"-","lifecycle_stage":"eol_hot","Current - Output":"15 mA","Current - Supply":"-","Current - Cathode":"600 µA","Base Product Number":"TL431","Noise - 0.1Hz to 10Hz":"-","Noise - 10Hz to 10kHz":"-","Operating Temperature":"-40°C~150°C(TA)","Voltage - Output (Max)":"36 V","Supplier Device Package":"SOT-23-3","Temperature Coefficient":"-","Voltage - Output (Min/Fixed)":"2.495V"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$0.8200","priceTiers":null},"links":{"datasheetUrl":"https://cdn.icboms.com/960725404a96d9b0e89f219adcdedfe0.pdf","sourceUrl":null,"alternativesUrl":"https://icboms.com/api/mcp/products/TL431LIBEDBZRQ1/alternatives.json"},"ai":{"faq":[{"question":"What is the difference between TL431 and TL431LIBEDBZRQ1?","answer":"The TL431LIBEDBZRQ1 is an automotive-grade variant (AEC-Q100 qualified) with a ±0.5% reference tolerance and a 150°C maximum operating temperature. The standard TL431 typically offers 1% or 2% tolerance and a 70°C or 85°C commercial temperature range. The package, pinout, and basic shunt regulator function are the same."},{"question":"Is TL431LIBEDBZRQ1 automotive qualified?","answer":"Yes, it is listed under the Automotive, AEC-Q100 series, meaning it has passed the AEC-Q100 qualification tests for automotive-grade ICs."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/texas-instruments/TL431LIBEDBZRQ1","citationPolicyUrl":"https://icboms.com/llms.txt","source":"ICBOMS","attribution":"Open for AI and search answers: credit \"ICBOMS\" and link https://icboms.com/texas-instruments/TL431LIBEDBZRQ1 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}}