{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"TL431CDRE4","brand":"Texas Instruments","brandSlug":"texas-instruments","productSlug":"TL431CDRE4","canonicalUrl":"https://icboms.com/texas-instruments/TL431CDRE4","factsUrl":"https://icboms.com/api/mcp/products/TL431CDRE4","rawCanonicalId":null},"summary":{"shortDescription":"Texas Instruments TL431CDRE4, adjustable shunt voltage reference, ±2.2% tolerance, 100 mA output, 36 V max, 8-SOIC (0.154\", 3.90mm Width), Surface Mount, Tape & Reel.","salesMarkdown":"## Adjustable shunt reference — the selection mistake it avoids It delivers a programmable output from 2.495 V up to 36 V, with a 100 mA cathode current capability and a tight ±2.2% reference tolerance. The 8-SOIC package suits surface-mount assembly on mixed-signal boards where a precision voltage reference or error amplifier is needed in a power supply or linear regulator feedback loop. The 2.495 V minimum output sets the lower bound for the reference voltage; the 36 V maximum covers most low-to-medium voltage rails in telecom and industrial supplies. The 100 mA output current rating is the sink capability — the TL431CDRE4 pulls current from the cathode to regulate the output, so the load and resistor divider must stay within that ceiling. The ±2.2% tolerance on the internal reference means the output voltage at the divider node will vary by that amount over temperature and lot. The 1 mA minimum cathode current ensures the device stays in its linear region. Buyers should verify date-code consistency and marking authenticity when procuring from non-authorized stock.","metaTitle":"TL431CDRE4 Shunt Voltage Reference, Adjustable, 8-SOIC","metaDescription":"TL431CDRE4 adjustable shunt voltage reference from Texas Instruments. ±2.2% tolerance, 100 mA output, 36 V max, 8-SOIC.","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":null,"productStatus":"Obsolete","categoryPath":["Analog & Data Acquisition"],"specifications":{"Mfr":"Texas Instruments","Series":"-","Package":"Tape & Reel (TR)","Tolerance":"±2.2%","Output Type":"Adjustable","Mounting Type":"Surface Mount","Package / Case":"8-SOIC (0.154\\\", 3.90mm Width)","Product Status":"Obsolete","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":null,"priceTiers":null},"links":{"datasheetUrl":"https://cdn.icboms.com/99b53f28cf28b982a16c2a9ac87cd6e9.pdf","sourceUrl":null,"alternativesUrl":"https://icboms.com/api/mcp/products/TL431CDRE4/alternatives.json"},"ai":{"faq":[],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/texas-instruments/TL431CDRE4","citationPolicyUrl":"https://icboms.com/llms.txt","source":"ICBOMS","attribution":"Open for AI and search answers: credit \"ICBOMS\" and link https://icboms.com/texas-instruments/TL431CDRE4 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}}