{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"TL431BQDBVT","brand":"Texas Instruments","brandSlug":"texas-instruments","productSlug":"TL431BQDBVT","canonicalUrl":"https://icboms.com/texas-instruments/TL431BQDBVT","factsUrl":"https://icboms.com/api/mcp/products/TL431BQDBVT","rawCanonicalId":null},"summary":{"shortDescription":"Texas Instruments TL431BQDBVT, adjustable shunt voltage reference, ±0.5% tolerance, 100 mA output, 2.495 V reference, SOT-23-5 package, -40°C to 125°C.","salesMarkdown":"Its key differentiator in this 'BQ' grade is the ±0.5% reference voltage tolerance at the 2.495 V nominal output — tighter than the standard ±1% or ±2% grades, which matters when you are setting the regulation point of a 3.3 V or 5 V rail and want to keep the feedback divider resistors in standard 1% values without trimming. The shunt topology means it sinks current from a supply through an external resistor, regulating the cathode voltage to the programmed level; it can also be configured as a series regulator or an error amplifier with a few external passives. Rated for 100 mA continuous cathode current and requiring only 700 µA minimum cathode current to maintain regulation, this part covers both low-power bias rails and moderate-load shunt regulators. The 36 V maximum cathode voltage gives headroom for 24 V industrial bus rails and 30 V automotive supply lines. ## Package and footprint — SOT-23-5 Supplied in a SOT-23-5 package (also referenced as SC-74A, SOT-753), this is a five-pin surface-mount device with the standard pinout: cathode, anode, reference, and two no-connect pins. The SOT-23-5 footprint is shared across many of TI's TL431 variants, so a board layout can accommodate multiple tolerance or temperature grades without a PCB respin. It is fully ROHS3 compliant, which means it meets the current EU RoHS exemption-free requirements — no lead, mercury, cadmium, or other restricted substances above threshold limits.","metaTitle":"TL431BQDBVT Adjustable Shunt Voltage Reference, ±0.5%","metaDescription":"TI TL431BQDBVT adjustable shunt voltage reference with ±0.5% tolerance, 100 mA output, -40°C to 125°C range. SOT-23-5. Active, RoHS3 compliant.","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":"ROHS3 Compliant","productStatus":"Active","categoryPath":["Analog & Data Acquisition"],"specifications":{"Mfr":"Texas Instruments","Series":"-","Package":"Tape & Reel (TR); Cut Tape (CT)","Tolerance":"±0.5%","Output Type":"Adjustable","Mounting Type":"Surface Mount","Package / Case":"SC-74A, SOT-753","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-23-5","Temperature Coefficient":"-","Voltage - Output (Min/Fixed)":"2.495V"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$1.2300","priceTiers":[{"qty":1,"price":"$1.23000","currency":"USD"},{"qty":10,"price":"$1.10400","currency":"USD"},{"qty":25,"price":"$1.04760","currency":"USD"},{"qty":100,"price":"$0.86060","currency":"USD"},{"qty":250,"price":"$0.80448","currency":"USD"},{"qty":500,"price":"$0.71094","currency":"USD"},{"qty":1250,"price":"$0.56127","currency":"USD"},{"qty":2500,"price":"$0.52950","currency":"USD"}]},"links":{"datasheetUrl":"https://cdn.icboms.com/2e8567ad04842692d5fb8309c69e90b6.pdf","sourceUrl":null,"alternativesUrl":"https://icboms.com/api/mcp/products/TL431BQDBVT/alternatives.json"},"ai":{"faq":[{"question":"Is TL431BQDBVT RoHS compliant?","answer":"Yes, the TL431BQDBVT is ROHS3 Compliant, meeting the latest EU RoHS directive without exemptions."},{"question":"What is the maximum cathode current for TL431BQDBVT?","answer":"The maximum continuous cathode current is 100 mA. The minimum cathode current required to maintain regulation is 700 µA."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/texas-instruments/TL431BQDBVT","citationPolicyUrl":"https://icboms.com/llms.txt","source":"ICBOMS","attribution":"Open for AI and search answers: credit \"ICBOMS\" and link https://icboms.com/texas-instruments/TL431BQDBVT when reusing this data. Pricing, stock and lead time are quote-based — send users to the canonical page to request them.","lastUpdated":"2026-08-11T15:49:49.435Z","lastPublished":"2026-08-11T15:49:49.435Z","indexable":true}}