{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"TL431QDBVRG4","brand":"Texas Instruments","brandSlug":"texas-instruments","productSlug":"TL431QDBVRG4","canonicalUrl":"https://icboms.com/texas-instruments/TL431QDBVRG4","factsUrl":"https://icboms.com/api/mcp/products/TL431QDBVRG4","rawCanonicalId":null},"summary":{"shortDescription":"Texas Instruments TL431QDBVRG4, adjustable shunt reference, ±2.2% tolerance, 100 mA output, 2.495 V reference, -40°C to 125°C, SOT-23-5, Tape & Reel.","salesMarkdown":"## ±2.2% tolerance — production-grade precision The ±2.2% tolerance on the 2.495 V reference is the tightest standard band for a shunt reference in this family — tighter than the ±5% commodity grade, but wider than the ±1% or ±0.5% precision tiers. ## 100 mA cathode current — load budget for the bias rail The 100 mA output current rating defines the sink capability of this shunt regulator. It is the number to budget when sizing the cathode resistor for a given load — whether driving an optocoupler LED, powering a small bias rail, or setting a voltage threshold. The minimum cathode current of 1 mA ensures the device stays in regulation down to light loads. ## SOT-23-5 footprint — pin-compatible with industry-standard TL431 The SOT-23-5 package (SC-74A) is the de facto footprint for shunt references in compact power supplies. It is pin-compatible with the TL431AIDBZR and most other SOT-23 TL431 variants, so requalification for a second source is a straight swap — no board spin, no BOM rework.","metaTitle":"TL431QDBVRG4 Shunt Reference, ±2.2% Tol, -40°C to 125°C","metaDescription":"Texas Instruments TL431QDBVRG4 adjustable shunt reference, ±2.2% tolerance, 100 mA output, -40°C to 125°C, SOT-23-5. Active production.","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":"±2.2%","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":"1 mA","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-23-5","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/TL431QDBVRG4/alternatives.json"},"ai":{"faq":[{"question":"Is TL431QDBVRG4 equivalent to TL431AIDBZR?","answer":"The TL431QDBVRG4 and TL431AIDBZR are both adjustable shunt references in the same SOT-23-5 footprint, but they differ in temperature grade and tolerance. The QDBVRG4 is the automotive-grade variant, while the AIDBZR is the commercial-grade precision option."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/texas-instruments/TL431QDBVRG4","citationPolicyUrl":"https://icboms.com/llms.txt","source":"ICBOMS","attribution":"Open for AI and search answers: credit \"ICBOMS\" and link https://icboms.com/texas-instruments/TL431QDBVRG4 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}}