{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"TL431CDG4","brand":"Texas Instruments","brandSlug":"texas-instruments","productSlug":"TL431CDG4","canonicalUrl":"https://icboms.com/texas-instruments/TL431CDG4","factsUrl":"https://icboms.com/api/mcp/products/TL431CDG4","rawCanonicalId":null},"summary":{"shortDescription":"Texas Instruments TL431CDG4, adjustable shunt voltage reference, ±2.2% tolerance, 100 mA output, 8-SOIC surface mount, 0°C to 70°C.","salesMarkdown":"## Adjustable shunt reference for precision regulation loops The ±2.2% tolerance on the reference voltage is tighter than the standard 2% grade, which reduces the worst-case error budget in the regulation loop without requiring a trim pot. ## Output current and cathode current limits Rated for 100 mA continuous output current, the TL431CDG4 can sink enough current to drive an optocoupler LED directly in a feedback loop, or to bias a pass transistor in a linear regulator. The minimum cathode current is 1 mA, which sets the lower bound on the bias resistor value for proper regulation.","metaTitle":"TL431CDG4 Shunt Voltage Reference, Adjustable 2.495V to 36V","metaDescription":"TL431CDG4 adjustable shunt voltage reference, ±2.2% tolerance, 100 mA output, 8-SOIC surface mount.","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":null,"productStatus":"Active","categoryPath":["Analog & Data Acquisition"],"specifications":{"Mfr":"Texas Instruments","Series":"-","Package":"Tube","Tolerance":"±2.2%","Output Type":"Adjustable","Mounting Type":"Surface Mount","Package / Case":"8-SOIC (0.154\\\", 3.90mm Width)","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":"0°C~70°C(TA)","Voltage - Output (Max)":"36 V","Supplier Device Package":"8-SOIC","Temperature Coefficient":"-","Voltage - Output (Min/Fixed)":"2.495V"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$0.1300","priceTiers":null},"links":{"datasheetUrl":"https://cdn.icboms.com/2e8567ad04842692d5fb8309c69e90b6.pdf","sourceUrl":null,"alternativesUrl":"https://icboms.com/api/mcp/products/TL431CDG4/alternatives.json"},"ai":{"faq":[{"question":"What is the closest pin-compatible alternative to TL431CDG4?","answer":"The TL431CDG4 is a standard TL431 variant in an 8-SOIC package. Any TL431 in the same 8-SOIC footprint with a commercial temperature range and ±2.2% tolerance is a direct functional equivalent. The base part number TL431 covers many grade and package options; confirm the specific tolerance and temperature grade before substituting."},{"question":"Is TL431CDG4 RoHS compliant?","answer":"The TL431CDG4 is part of Texas Instruments' Green (RoHS & no Sb/Br) portfolio. The suffix 'G4' indicates RoHS compliance and green molding compound."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/texas-instruments/TL431CDG4","citationPolicyUrl":"https://icboms.com/llms.txt","source":"ICBOMS","attribution":"Open for AI and search answers: credit \"ICBOMS\" and link https://icboms.com/texas-instruments/TL431CDG4 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}}