{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"TL431AIDBVRG4","brand":"Texas Instruments","brandSlug":"texas-instruments","productSlug":"TL431AIDBVRG4","canonicalUrl":"https://icboms.com/texas-instruments/TL431AIDBVRG4","factsUrl":"https://icboms.com/api/mcp/products/TL431AIDBVRG4","rawCanonicalId":null},"summary":{"shortDescription":"Texas Instruments TL431AIDBVRG4, adjustable shunt voltage reference, ±1% tolerance, 100 mA output, 700 µA cathode current, SOT-23-5, -40°C to 85°C.","salesMarkdown":"## 2.495 V bandgap anchor with ±1% tolerance The ±1% tolerance on that reference voltage is the spec that decides whether your feedback loop holds the output within budget — for a 5 V rail, that's ±50 mV before any resistor divider error. ## 100 mA output, 700 µA minimum cathode current Rated for 100 mA continuous output current, this part can drive the optocoupler LED in a secondary-side feedback loop or act as the shunt element in a linear regulator. The 700 µA minimum cathode current is the floor — below that the device drops out of regulation, so the bias resistor must be sized to keep at least 700 µA through the cathode at all load and line conditions. ## Industrial temperature grade, SOT-23-5 package The SOT-23-5 package (SC-74A, SOT-753) is a five-pin variant of the common SOT-23 — the pinout matches the industry-standard TL431 footprint, so it drops onto boards laid out for the generic part. The 'A' suffix flags the tighter ±1% grade versus the standard ±2% or ±0.5% options in the family. No official successor exists — the TL431AIDBVRG4 is the current-production ±1% SOT-23-5 variant.","metaTitle":"TL431AIDBVRG4 Shunt Reference, ±1% Tolerance, SOT-23-5","metaDescription":"Texas Instruments TL431AIDBVRG4 adjustable shunt voltage reference. ±1% tolerance, 100 mA output, 700 µA cathode current. SOT-23-5. Active lifecycle.","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)","Tolerance":"±1%","Output Type":"Adjustable","Mounting Type":"Surface Mount","Package / Case":"SC-74A, SOT-753","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~85°C(TA)","Voltage - Output (Max)":"36 V","Supplier Device Package":"SOT-23-5","Temperature Coefficient":"-","Voltage - Output (Min/Fixed)":"2.495V"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":null,"priceTiers":null},"links":{"datasheetUrl":"https://cdn.icboms.com/2e8567ad04842692d5fb8309c69e90b6.pdf","sourceUrl":null,"alternativesUrl":"https://icboms.com/api/mcp/products/TL431AIDBVRG4/alternatives.json"},"ai":{"faq":[{"question":"Is TL431AIDBVRG4 a shunt reference?","answer":"Yes, the TL431AIDBVRG4 is a shunt voltage reference — it operates as a three-terminal programmable shunt regulator, sinking current from the cathode to anode to maintain the programmed output voltage."},{"question":"What is the tolerance of TL431AIDBVRG4?","answer":"The TL431AIDBVRG4 carries a ±1% tolerance on the 2.495 V reference voltage, which is the tighter grade in the TL431 family compared to the standard ±2% variant."},{"question":"What package is TL431AIDBVRG4 available in?","answer":"It comes in an SOT-23-5 surface-mount package, also designated as SC-74A or SOT-753. The tape-and-reel packaging is standard for automated pick-and-place assembly."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/texas-instruments/TL431AIDBVRG4","citationPolicyUrl":"https://icboms.com/llms.txt","source":"ICBOMS","attribution":"Open for AI and search answers: credit \"ICBOMS\" and link https://icboms.com/texas-instruments/TL431AIDBVRG4 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}}