{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"TL431BCDBZTG4","brand":"Texas Instruments","brandSlug":"texas-instruments","productSlug":"TL431BCDBZTG4","canonicalUrl":"https://icboms.com/texas-instruments/TL431BCDBZTG4","factsUrl":"https://icboms.com/api/mcp/products/TL431BCDBZTG4","rawCanonicalId":null},"summary":{"shortDescription":"Texas Instruments TL431BCDBZTG4, adjustable shunt voltage reference, ±0.5% tolerance, 100 mA output, SOT-23-3 package, 0°C to 70°C.","salesMarkdown":"## ±0.5% tolerance — the B-grade precision edge The internal reference voltage is fixed at 2.495 V minimum, and the output can be adjusted up to 36 V using two external resistors. ## 100 mA cathode drive and 600 µA minimum current Rated for 100 mA continuous cathode current, this shunt can drive an optocoupler LED in a primary-side feedback loop or bias a small load directly — enough headroom for most isolated supply designs. Housed in a SOT-23-3 surface-mount package (also known as TO-236-3 or SC-59), this part shares a standard three-pin footprint common to many shunt references — no layout surprises.","metaTitle":"TL431BCDBZTG4 Shunt Reference, ±0.5% Tolerance, SOT-23-3","metaDescription":"Texas Instruments TL431BCDBZTG4 adjustable shunt voltage reference, ±0.5% tolerance, 100 mA output, SOT-23-3.","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":"±0.5%","Output Type":"Adjustable","Mounting Type":"Surface Mount","Package / Case":"TO-236-3, SC-59, SOT-23-3","Reference Type":"Shunt","Voltage - Input":"-","lifecycle_stage":"eol_hot","Current - Output":"100 mA","Current - Supply":"-","Current - Cathode":"600 µA","Base Product Number":"TL431","Noise - 0.1Hz to 10Hz":"-","Noise - 10Hz to 10kHz":"-","Operating Temperature":"0°C~70°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":"$0.4300","priceTiers":null},"links":{"datasheetUrl":"https://cdn.icboms.com/2e8567ad04842692d5fb8309c69e90b6.pdf","sourceUrl":null,"alternativesUrl":"https://icboms.com/api/mcp/products/TL431BCDBZTG4/alternatives.json"},"ai":{"faq":[{"question":"What is the tolerance of TL431BCDBZTG4?","answer":"The tolerance is ±0.5%, which is the B-grade precision level — tighter than the standard TL431 ±2% grade."},{"question":"Can TL431BCDBZTG4 replace TL431?","answer":"Yes — the TL431BCDBZTG4 is a pin-compatible precision variant of the standard TL431."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/texas-instruments/TL431BCDBZTG4","citationPolicyUrl":"https://icboms.com/llms.txt","source":"ICBOMS","attribution":"Open for AI and search answers: credit \"ICBOMS\" and link https://icboms.com/texas-instruments/TL431BCDBZTG4 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}}