{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"TL431QDCKR","brand":"Texas Instruments","brandSlug":"texas-instruments","productSlug":"TL431QDCKR","canonicalUrl":"https://icboms.com/texas-instruments/TL431QDCKR","factsUrl":"https://icboms.com/api/mcp/products/TL431QDCKR","rawCanonicalId":null},"summary":{"shortDescription":"Texas Instruments TL431QDCKR, adjustable shunt regulator, ±2.2% tolerance, 100 mA output, 2.495 V reference, SC-70-6 package, -40°C to 125°C.","salesMarkdown":"## Adjustable shunt reference in a compact SC-70-6 It provides a 2.495 V reference that can be set to any output voltage up to 36 V using two external resistors. The ±2.2% initial tolerance places this variant in the middle of the TL431 accuracy tiers — tighter than the ±2% standard grade but not as tight as the ±0.5% or ±1% precision options. For a 5 V output rail, that translates to roughly ±110 mV worst-case at 25°C before temperature drift. ## 100 mA output and 1 mA cathode current floor Rated for 100 mA continuous output current, the TL431QDCKR can drive optocoupler LEDs in isolated power supplies, bias small-signal transistors, or serve as a precision shunt reference for an ADC reference input. The 1 mA minimum cathode current ensures the device stays in its linear regulation region; designs must bias it above that threshold or the output voltage drifts. The SC-70-6 package keeps the footprint small, but the thermal impedance is higher than a SOT-23; for sustained 100 mA operation, check the junction temperature against the ambient derating curve.","metaTitle":"TL431QDCKR Shunt Regulator, Adjustable, ±2.2%, SC-70-6","metaDescription":"TL431QDCKR adjustable shunt regulator from TI. ±2.2% tolerance, 100 mA output, -40°C to 125°C.","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":"6-TSSOP, SC-88, SOT-363","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~125°C(TA)","Voltage - Output (Max)":"36 V","Supplier Device Package":"SC-70-6","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/TL431QDCKR/alternatives.json"},"ai":{"faq":[{"question":"What is the tolerance of TL431QDCKR?","answer":"The TL431QDCKR has a ±2.2% initial tolerance on the reference voltage. This is a mid-grade accuracy tier within the TL431 family."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/texas-instruments/TL431QDCKR","citationPolicyUrl":"https://icboms.com/llms.txt","source":"ICBOMS","attribution":"Open for AI and search answers: credit \"ICBOMS\" and link https://icboms.com/texas-instruments/TL431QDCKR 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}}