{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"TL431CZ","brand":"STMicroelectronics","brandSlug":"stmicroelectronics","productSlug":"TL431CZ","canonicalUrl":"https://icboms.com/stmicroelectronics/TL431CZ","factsUrl":"https://icboms.com/api/mcp/products/TL431CZ","rawCanonicalId":null},"summary":{"shortDescription":"STMicroelectronics TL431 series adjustable shunt voltage reference, TL431CZ, TO-92-3 through-hole package, ±2.21% tolerance, 2.495 V reference, 100 mA output, Bulk.","salesMarkdown":"## Reference voltage and output drive The TL431CZ is an adjustable shunt voltage reference with a 2.495 V minimum output and a 36 V maximum, delivering up to 100 mA to the load. The cathode current requirement is 1 mA minimum, so the bias resistor must be sized to keep at least that much current flowing through the device at all times. The ±2.21% initial tolerance sets the worst-case output voltage spread across the operating temperature range of 0°C to 70°C. For a 5 V rail derived from the TL431, the output could vary by roughly ±110 mV before adding resistor-divider error — a consideration for precision bias or comparator thresholds. Housed in the TO-92-3 (TO-226AA) through-hole package, the TL431CZ suits point-to-point wiring or prototyping on perfboard.","metaTitle":"STMicroelectronics TL431CZ Shunt Reference, ±2.21% TO-92","metaDescription":"STMicroelectronics TL431CZ adjustable shunt voltage reference, ±2.21% tolerance, 100 mA output, TO-92-3. Active production, ROHS3 compliant. Quoted to order.","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":"ROHS3 Compliant","productStatus":"Active","categoryPath":["Analog & Data Acquisition"],"specifications":{"Mfr":"STMicroelectronics","Series":"-","Package":"Bulk","Tolerance":"±2.21%","Output Type":"Adjustable","Mounting Type":"Through Hole","Package / Case":"TO-226-3, TO-92-3 (TO-226AA)","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":"0°C ~ 70°C (TA)","Voltage - Output (Max)":"36 V","Supplier Device Package":"TO-92-3","Temperature Coefficient":"-","Voltage - Output (Min/Fixed)":"2.495V"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$0.4100","priceTiers":[{"qty":1,"price":"$0.41000","currency":"USD"},{"qty":10,"price":"$0.35300","currency":"USD"},{"qty":25,"price":"$0.32960","currency":"USD"},{"qty":100,"price":"$0.26360","currency":"USD"},{"qty":250,"price":"$0.24476","currency":"USD"},{"qty":500,"price":"$0.20710","currency":"USD"},{"qty":1000,"price":"$0.16002","currency":"USD"},{"qty":2500,"price":"$0.14590","currency":"USD"},{"qty":5000,"price":"$0.13649","currency":"USD"}]},"links":{"datasheetUrl":"https://cdn.icboms.com/d3856169bdff63c55d41eeae5a91cadc.pdf","sourceUrl":null,"alternativesUrl":"https://icboms.com/api/mcp/products/TL431CZ/alternatives.json"},"ai":{"faq":[{"question":"What is the closest pin-compatible alternative to TL431CZ in this Analog & Data Acquisition family?","answer":"Any TO-92-3 packaged TL431 from STMicroelectronics or other manufacturers with the same base number (TL431) is pin-compatible. The TL431CZ is the commercial temperature grade (0°C to 70°C) with ±2.21% tolerance; other grades offer tighter tolerance or wider temperature range in the same footprint."},{"question":"What compliance documentation does STMicroelectronics provide for TL431CZ?","answer":"The TL431CZ is ROHS3 Compliant per the manufacturer's status. Standard STMicroelectronics documentation includes the datasheet and ROHS declaration of conformity."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/stmicroelectronics/TL431CZ","citationPolicyUrl":"https://icboms.com/llms.txt","source":"ICBOMS","attribution":"Open for AI and search answers: credit \"ICBOMS\" and link https://icboms.com/stmicroelectronics/TL431CZ when reusing this data. Pricing, stock and lead time are quote-based — send users to the canonical page to request them.","lastUpdated":"2026-08-11T15:49:49.435Z","lastPublished":"2026-08-11T15:49:49.435Z","indexable":true}}