{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"TL431IDBVRG4","brand":"Texas Instruments","brandSlug":"texas-instruments","productSlug":"TL431IDBVRG4","canonicalUrl":"https://icboms.com/texas-instruments/TL431IDBVRG4","factsUrl":"https://icboms.com/api/mcp/products/TL431IDBVRG4","rawCanonicalId":null},"summary":{"shortDescription":"Texas Instruments TL431IDBVRG4, adjustable shunt reference, ±2.2% tolerance, 100 mA output, SOT-23-5, -40°C to 85°C.","salesMarkdown":"## ±2.2% tolerance — what it means for regulation accuracy The TL431IDBVRG4 is an adjustable shunt reference with a ±2.2% tolerance on the 2.495 V internal reference. For a 5 V output rail, that translates to roughly ±110 mV of initial accuracy before temperature drift — tight enough for most linear regulator feedback dividers, ADC references, and comparator thresholds. If your design requires better than ±1%, step up to the TL431A or TL431B grade variants. ## 100 mA output current — driving the load budget The shunt regulator can sink up to 100 mA continuous, which sets the ceiling for the cathode resistor and the load it can regulate. In a typical shunt configuration, the cathode resistor must be sized so that the sum of the load current and the 1 mA minimum cathode current stays below 100 mA across the full input voltage range. Exceed that and the reference voltage drifts out of regulation. ## SOT-23-5 — rework and layout notes The SOT-23-5 package (SC-74A body, 5 leads) is a surface-mount footprint that reworks cleanly under hot air with a 300°C profile — the small thermal mass means it lifts without cooking adjacent components. The pinout is standard for the TL431 family: cathode, anode, reference, and two NC pins. Keep the cathode trace short to minimise parasitic inductance that can cause oscillation at high shunt capacitance.","metaTitle":"TL431IDBVRG4 Shunt Reference, ±2.2% Tolerance, SOT-23-5","metaDescription":"Texas Instruments TL431IDBVRG4 adjustable shunt reference, ±2.2% tolerance, 100 mA output, SOT-23-5. Active lifecycle, industrial temp -40°C to 85°C.","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~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":"$0.3800","priceTiers":null},"links":{"datasheetUrl":"https://cdn.icboms.com/2e8567ad04842692d5fb8309c69e90b6.pdf","sourceUrl":null,"alternativesUrl":"https://icboms.com/api/mcp/products/TL431IDBVRG4/alternatives.json"},"ai":{"faq":[{"question":"Is TL431IDBVRG4 pin compatible with TL431AIDBZR?","answer":"Yes, the TL431IDBVRG4 and TL431AIDBZR share the same SOT-23-5 pinout and are functionally interchangeable in the same footprint. The key difference is tolerance: the IDBVRG4 is ±2.2%, while the AIDBZR is typically ±1%. If your design needs tighter regulation, the AIDBZR is the drop-in alternative."},{"question":"What is the output current capability of TL431IDBVRG4?","answer":"The TL431IDBVRG4 can sink up to 100 mA continuous. This is the maximum current through the cathode terminal when the device is regulating. The minimum cathode current to maintain regulation is 1 mA."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/texas-instruments/TL431IDBVRG4","citationPolicyUrl":"https://icboms.com/llms.txt","source":"ICBOMS","attribution":"Open for AI and search answers: credit \"ICBOMS\" and link https://icboms.com/texas-instruments/TL431IDBVRG4 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}}