{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"TL431AQDBZRG4","brand":"Texas Instruments","brandSlug":"texas-instruments","productSlug":"TL431AQDBZRG4","canonicalUrl":"https://icboms.com/texas-instruments/TL431AQDBZRG4","factsUrl":"https://icboms.com/api/mcp/products/TL431AQDBZRG4","rawCanonicalId":null},"summary":{"shortDescription":"Texas Instruments TL431AQDBZRG4, adjustable shunt voltage reference, ±1% tolerance, 100 mA output, 2.495 V reference, SOT-23-3, -40°C to 125°C.","salesMarkdown":"## Shunt reference with ±1% — the precision anchor for your rail Rated for 100 mA continuous cathode current, it sinks the bias current for an optocoupler LED or sets the feedback divider in an isolated flyback converter. The 700 µA minimum cathode current keeps the device biased in its linear region across the full load range. ## Industrial temperature range — one part for the whole BOM Output voltage is adjustable from 2.495 V up to 36 V with two external resistors — the same divider formula used across the entire TL431 family, so the BOM calculation transfers directly from a TO-92 or SOIC-8 sibling. The base number TL431 spans decades of supply — this SOT-23-3 variant is the go-to for new designs that need the precision in a small footprint.","metaTitle":"TL431AQDBZRG4 Shunt Voltage Reference, ±1%, SOT-23-3","metaDescription":"TL431AQDBZRG4 adjustable shunt reference, ±1% tolerance, 100 mA output, -40°C to 125°C. Active production. Request RFQ.","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":null,"productStatus":"Active","categoryPath":["Analog & Data Acquisition"],"specifications":{"Mfr":"Texas Instruments","Series":"-","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","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":"$0.4300","priceTiers":null},"links":{"datasheetUrl":"https://cdn.icboms.com/2e8567ad04842692d5fb8309c69e90b6.pdf","sourceUrl":null,"alternativesUrl":"https://icboms.com/api/mcp/products/TL431AQDBZRG4/alternatives.json"},"ai":{"faq":[{"question":"What is the tolerance of TL431AQDBZRG4?","answer":"The TL431AQDBZRG4 carries a ±1% initial tolerance on the 2.495 V reference, which is the standard precision grade for the TL431A suffix."},{"question":"Is TL431AQDBZRG4 RoHS compliant?","answer":"Confirm with the supplier at quote time."},{"question":"Is TL431AQDBZRG4 a direct replacement for TL431A?","answer":"The TL431AQDBZRG4 is a specific SOT-23-3 variant of the TL431A grade. It is pin-compatible and functionally identical to other TL431A devices in the same package, but the footprint differs from TO-92 or SOIC-8 variants — verify the PCB land pattern before substituting."},{"question":"What is the maximum cathode current for TL431AQDBZRG4?","answer":"The maximum continuous cathode current is 100 mA, with a minimum cathode current of 700 µA required to maintain regulation."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/texas-instruments/TL431AQDBZRG4","citationPolicyUrl":"https://icboms.com/llms.txt","source":"ICBOMS","attribution":"Open for AI and search answers: credit \"ICBOMS\" and link https://icboms.com/texas-instruments/TL431AQDBZRG4 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}}