{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"TL431CPWR","brand":"Texas Instruments","brandSlug":"texas-instruments","productSlug":"TL431CPWR","canonicalUrl":"https://icboms.com/texas-instruments/TL431CPWR","factsUrl":"https://icboms.com/api/mcp/products/TL431CPWR","rawCanonicalId":null},"summary":{"shortDescription":"Texas Instruments TL431CPWR, adjustable shunt voltage reference, ±2.2% tolerance, 2.495V to 36V output, 100 mA cathode current, 8-TSSOP surface-mount package, 0°C to 70°C operating temperature.","salesMarkdown":"## What the TL431CPWR does in your power rail It sets a precision reference voltage at 2.495 V minimum, adjustable up to 36 V via two external resistors. Output current capability is 100 mA, with a minimum cathode current of 1 mA to maintain regulation. This makes it suitable for secondary-side regulation in AC-DC flyback supplies, precision shunt references in linear regulators, and as a voltage monitor threshold detector. ## Last Buy — procurement window is closing This is not an active-production part — Texas Instruments has announced end-of-life, and the final purchase window is open now. After the last-time-buy date passes, the only channel will be surplus and broker inventory. ## 8-TSSOP package — what the layout engineer sees The 8-TSSOP body measures 4.40 mm wide. The supplier device package is 8-TSSOP. ## Sourcing reality for a Last-Buy part The TL431 family is widely second-sourced, but the TL431CPWR specific 8-TSSOP variant and ±2.2% grade should be matched to the BOM line before substituting. The base product number TL431 spans dozens of package and tolerance variants.","metaTitle":"TL431CPWR adjustable shunt voltage reference, 8-TSSOP","metaDescription":"Texas Instruments TL431CPWR adjustable shunt voltage reference, ±2.2% tolerance, 2.495V to 36V output, 100 mA cathode current, 8-TSSOP package.","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":null,"productStatus":"Last Buy","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":"8-TSSOP (0.173\\\", 4.40mm Width)","Product Status":"Last Time Buy","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-TSSOP","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/TL431CPWR/alternatives.json"},"ai":{"faq":[{"question":"Is TL431CPWR a last time buy?","answer":"Yes. The lifecycle status is Last Buy. Texas Instruments has discontinued this order code, and the final purchase window is open. After the LTB date, only surplus or broker inventory will remain."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/texas-instruments/TL431CPWR","citationPolicyUrl":"https://icboms.com/llms.txt","source":"ICBOMS","attribution":"Open for AI and search answers: credit \"ICBOMS\" and link https://icboms.com/texas-instruments/TL431CPWR 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}}