{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"TL431CPS","brand":"Texas Instruments","brandSlug":"texas-instruments","productSlug":"TL431CPS","canonicalUrl":"https://icboms.com/texas-instruments/TL431CPS","factsUrl":"https://icboms.com/api/mcp/products/TL431CPS","rawCanonicalId":null},"summary":{"shortDescription":"Texas Instruments TL431CPS, adjustable shunt voltage reference, 2.495V min / 36V max output, ±2% tolerance, 100 mA cathode current, 0°C to 70°C, 8-SOIC surface-mount package, Tube.","salesMarkdown":"## Adjustable shunt reference — 2.495 V to 36 V, 100 mA cathode Its output is set with two external resistors anywhere between 2.495 V and 36 V, sourcing up to 100 mA through the cathode. The ±2% initial tolerance places this in the commercial bin — adequate for typical SMPS and linear regulator feedback, but not for precision instrumentation where tighter grades are needed. Housed in an 8-SOIC wide-body package (0.209-inch body width, 5.30 mm), the TL431CPS uses the standard SOIC-8 footprint but takes more board area than the narrow SOIC-8 option. The 1 mA minimum cathode current must be maintained for proper regulation; designs with light load currents need a pull-up resistor to guarantee this bias. ## Last Buy — sourcing window is closing Production is winding down, and the final order window is active. Buyers should secure their lifetime or bridge quantities now — once the window closes, only surplus and broker channels will carry this part. For ongoing designs, consider migrating to an active TL431 variant in the same SOIC-8 footprint, such as the TL431A or TL431B series with tighter tolerance grades.","metaTitle":"TL431CPS Shunt Reference, 2.495V to 36V, ±2%, 8-SOIC","metaDescription":"TL431CPS adjustable shunt voltage reference: 2.495V min, 36V max, ±2% tolerance, 100 mA cathode current, 0°C to 70°C, 8-SOIC. Last Buy — order against RFQ.","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":null,"productStatus":"Last Buy","categoryPath":["Analog & Data Acquisition"],"specifications":{"Mfr":"Texas Instruments","Series":"-","Package":"Tube","Tolerance":"±2%","Output Type":"Adjustable","Mounting Type":"Surface Mount","Package / Case":"8-SOIC (0.209\\\", 5.30mm 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-SO","Temperature Coefficient":"-","Voltage - Output (Min/Fixed)":"2.495V"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$0.4245","priceTiers":null},"links":{"datasheetUrl":"https://cdn.icboms.com/2e8567ad04842692d5fb8309c69e90b6.pdf","sourceUrl":null,"alternativesUrl":"https://icboms.com/api/mcp/products/TL431CPS/alternatives.json"},"ai":{"faq":[{"question":"Is TL431CPS obsolete?","answer":"The TL431CPS is in Last Buy status — production is ending, and the final order window is open. It is not yet fully discontinued, but buyers should act now to secure stock before the window closes."},{"question":"Can TL431CPS replace TL431A?","answer":"The TL431CPS and TL431A are functionally interchangeable — both are adjustable shunt references in the same TL431 family. The key difference is tolerance: TL431CPS is ±2% (commercial grade), while TL431A is typically ±1%. Check your design's accuracy budget before substituting."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/texas-instruments/TL431CPS","citationPolicyUrl":"https://icboms.com/llms.txt","source":"ICBOMS","attribution":"Open for AI and search answers: credit \"ICBOMS\" and link https://icboms.com/texas-instruments/TL431CPS 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}}