{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"TL431BQPKG3","brand":"Texas Instruments","brandSlug":"texas-instruments","productSlug":"TL431BQPKG3","canonicalUrl":"https://icboms.com/texas-instruments/TL431BQPKG3","factsUrl":"https://icboms.com/api/mcp/products/TL431BQPKG3","rawCanonicalId":null},"summary":{"shortDescription":"Texas Instruments TL431BQPKG3, adjustable shunt voltage reference, ±0.5% tolerance, 100 mA output, 2.495 V reference, SOT-89-3 package, -40 to 125 °C.","salesMarkdown":"## Precision shunt reference in a SOT-89-3 The Texas Instruments TL431BQPKG3 is an adjustable shunt voltage reference with a ±0.5% tolerance — the tightest bin in the TL431 family, suited for precision regulated supplies, comparator thresholds, and isolated feedback loops where the generic ±1% or ±2% parts leave too little margin. It delivers up to 100 mA cathode current with a minimum operating current of 700 µA, so the bias resistor can be sized for a wide range of load and line conditions without dropping out of regulation.","metaTitle":"TL431BQPKG3 shunt reference, ±0.5% tolerance, SOT-89-3","metaDescription":"Texas Instruments TL431BQPKG3 adjustable shunt voltage reference, ±0.5% tolerance, 100 mA output, SOT-89-3 package. Active lifecycle — order against 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":"±0.5%","Output Type":"Adjustable","Mounting Type":"Surface Mount","Package / Case":"TO-243AA","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-89-3","Temperature Coefficient":"-","Voltage - Output (Min/Fixed)":"2.495V"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$0.4500","priceTiers":null},"links":{"datasheetUrl":"https://cdn.icboms.com/2e8567ad04842692d5fb8309c69e90b6.pdf","sourceUrl":null,"alternativesUrl":"https://icboms.com/api/mcp/products/TL431BQPKG3/alternatives.json"},"ai":{"faq":[{"question":"What is the tolerance of TL431BQPKG3?","answer":"The TL431BQPKG3 has a ±0.5% tolerance on the reference voltage, which is the tightest bin in the TL431 family and suits precision regulator or comparator circuits."},{"question":"What are alternatives to TL431BQPKG3?","answer":"Any TL431-family part with the same SOT-89-3 package is a pin-compatible alternative, but only the 'B' grade offers the ±0.5% tolerance — standard TL431 parts are typically ±1% or ±2%."},{"question":"What package is TL431BQPKG3?","answer":"The TL431BQPKG3 comes in a SOT-89-3 surface-mount package, also designated TO-243AA, with a large collector tab for heat sinking."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/texas-instruments/TL431BQPKG3","citationPolicyUrl":"https://icboms.com/llms.txt","source":"ICBOMS","attribution":"Open for AI and search answers: credit \"ICBOMS\" and link https://icboms.com/texas-instruments/TL431BQPKG3 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}}