{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"TL431IDBZR","brand":"Texas Instruments","brandSlug":"texas-instruments","productSlug":"TL431IDBZR","canonicalUrl":"https://icboms.com/texas-instruments/TL431IDBZR","factsUrl":"https://icboms.com/api/mcp/products/TL431IDBZR","rawCanonicalId":null},"summary":{"shortDescription":"Texas Instruments TL431IDBZR adjustable shunt voltage reference, ±2.2% tolerance, 100 mA output, SOT-23-3 package, -40°C to 85°C, active.","salesMarkdown":"## Adjustable shunt reference with ±2.2% tolerance It provides a programmable output voltage from 2.495 V up to 36 V using two external resistors, with a typical output impedance of 0.2 Ω. The ±2.2% tolerance on the reference voltage is tighter than the standard TL431's ±2% grade, making this variant a better fit for precision regulation loops in power supplies, isolated converters, and battery chargers where output accuracy matters. Rated for a continuous cathode current of 100 mA, the device can directly drive optocoupler LEDs or small loads without an external transistor, simplifying the BOM in flyback and forward converter feedback circuits. ## Industrial temperature grade and SOT-23-3 footprint The SOT-23-3 package (TO-236-3) is a standard footprint for low-power references, with good thermal dissipation for the 100 mA output capability. The minimum cathode current of 1 mA ensures stable regulation across the full load range, and the device is fully specified for shunt operation from 1 mA to 100 mA. The base product number TL431 spans multiple package and tolerance variants. For dual-sourcing, the standard TL431BIDBZR (1% tolerance) is a direct pin-compatible alternative if tighter accuracy is needed.","metaTitle":"TL431IDBZR Shunt Voltage Reference, ±2.2% Tolerance","metaDescription":"Texas Instruments TL431IDBZR adjustable shunt voltage reference, ±2.2% tolerance, 100 mA output, -40°C to 85°C. 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); Cut Tape (CT)","Tolerance":"±2.2%","Output Type":"Adjustable","Mounting Type":"Surface Mount","Package / Case":"TO-236-3, SC-59, SOT-23-3","Product Status":"Active","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-23-3","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/TL431IDBZR/alternatives.json"},"ai":{"faq":[{"question":"What is the price of TL431IDBZR?","answer":"Pricing for the TL431IDBZR is confirmed at quote time against the specific order quantity and delivery schedule. Submit an RFQ through the storefront for current pricing and lead time."},{"question":"Is TL431IDBZR the same as the standard TL431?","answer":"The TL431IDBZR is a specific variant of the TL431 family with a ±2.2% tolerance, SOT-23-3 package, and industrial temperature range. It is functionally identical to other TL431 variants but with a different tolerance grade and package option. It is pin-compatible with other SOT-23-3 TL431 parts."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/texas-instruments/TL431IDBZR","citationPolicyUrl":"https://icboms.com/llms.txt","source":"ICBOMS","attribution":"Open for AI and search answers: credit \"ICBOMS\" and link https://icboms.com/texas-instruments/TL431IDBZR 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}}