{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"TL431AQDBZRQ1","brand":"Texas Instruments","brandSlug":"texas-instruments","productSlug":"TL431AQDBZRQ1","canonicalUrl":"https://icboms.com/texas-instruments/TL431AQDBZRQ1","factsUrl":"https://icboms.com/api/mcp/products/TL431AQDBZRQ1","rawCanonicalId":null},"summary":{"shortDescription":"Texas Instruments TL431AQDBZRQ1, Automotive AEC-Q100, adjustable shunt regulator, ±1% tolerance, 100 mA output, 2.495 V to 36 V output range, SOT-23-3 surface-mount package.","salesMarkdown":"## Automotive-grade shunt reference for harsh environments It provides a ±1% tolerance reference voltage from 2.495 V up to 36 V, with a 100 mA output current capability and a minimum cathode current of 700 µA. ## Output range and bias current — sizing the operating point The 2.495 V minimum output is the internal bandgap reference; the upper limit of 36 V lets the part regulate directly from a 12 V or 24 V automotive rail without a pre-regulator. The 700 µA cathode current sets the minimum bias through the device — the resistor from cathode to the supply rail must be sized to deliver at least this current over the full input voltage range. Output current is rated to 100 mA, which covers driving an optocoupler LED in a feedback loop or supplying a small local reference rail. The SOT-23-3 package limits power dissipation; for continuous loads near 100 mA, check the junction temperature at the maximum ambient of 125 °C.","metaTitle":"TL431AQDBZRQ1 Automotive Shunt Regulator, AEC-Q100, SOT-23-3","metaDescription":"TL431AQDBZRQ1 adjustable shunt regulator, AEC-Q100 qualified, ±1% tolerance, 100 mA output, 2.495 V to 36 V range, SOT-23-3 package.","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":"±1%","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":"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":"SOT-23-3","Temperature Coefficient":"-","Voltage - Output (Min/Fixed)":"2.495V"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$0.4200","priceTiers":null},"links":{"datasheetUrl":null,"sourceUrl":null,"alternativesUrl":"https://icboms.com/api/mcp/products/TL431AQDBZRQ1/alternatives.json"},"ai":{"faq":[{"question":"Is TL431AQDBZRQ1 RoHS compliant?","answer":"The part is listed with Tape & Reel and Cut Tape packaging options, which are RoHS-compliant for the TL431 family. Confirm the specific date-code compliance certificate with your order."},{"question":"What is the difference between TL431AQDBZRQ1 and TL431AIDBZR?","answer":"The primary difference is the qualification grade: TL431AQDBZRQ1 is AEC-Q100 qualified for automotive applications, while TL431AIDBZR is an industrial-grade variant. Both share the same ±1% tolerance, adjustable output, and SOT-23-3 package."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/texas-instruments/TL431AQDBZRQ1","citationPolicyUrl":"https://icboms.com/llms.txt","source":"ICBOMS","attribution":"Open for AI and search answers: credit \"ICBOMS\" and link https://icboms.com/texas-instruments/TL431AQDBZRQ1 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}}