{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"LM4040BIM3X-5.0","brand":"Texas Instruments","brandSlug":"texas-instruments","productSlug":"LM4040BIM3X-5.0","canonicalUrl":"https://icboms.com/texas-instruments/LM4040BIM3X-5.0","factsUrl":"https://icboms.com/api/mcp/products/LM4040BIM3X-5.0","rawCanonicalId":null},"summary":{"shortDescription":"Texas Instruments LM4040BIM3X-5.0, precision shunt voltage reference, fixed 5 V output, ±0.2% tolerance, 100 ppm/°C tempco, 80 µVrms noise, SOT-23-3 package, Tape & Reel.","salesMarkdown":"## 5 V shunt reference with ±0.2% initial accuracy It delivers a fixed 5 V output with ±0.2% initial tolerance — tight enough to serve as the reference for an 8-bit or 10-bit ADC without external trimming. As a shunt (two-terminal) reference, it behaves like a low-temperature-coefficient Zener: you set the operating current with a single series resistor from the supply rail. The minimum cathode current to maintain regulation is 80 µA, and the absolute maximum continuous cathode current is 15 mA. ## Obsolete — official status and sourcing path No official successor part number has been published, so the replacement path is either a pin-compatible shunt reference from the same family or a move to a series reference if the application can tolerate the different topology. Availability is limited to existing factory stock and the independent surplus channel. For a 5 V reference that is about 16 ppm rms — clean enough for a 12-bit ADC if the reference input is adequately bypassed.","metaTitle":"LM4040BIM3X-5.0 Shunt Voltage Reference, ±0.2%, SOT-23-3","metaDescription":"Texas Instruments LM4040BIM3X-5.0 precision 5 V shunt reference, ±0.2% tolerance, 80 µVrms noise, SOT-23-3.","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":"±0.2%","Output Type":"Fixed","Mounting Type":"Surface Mount","Package / Case":"TO-236-3, SC-59, SOT-23-3","Product Status":"Obsolete","Reference Type":"Shunt","Voltage - Input":"-","lifecycle_stage":"eol_hot","Current - Output":"15 mA","Current - Supply":"-","Current - Cathode":"80 µA","Base Product Number":"LM4040","Noise - 0.1Hz to 10Hz":"-","Noise - 10Hz to 10kHz":"80µVrms","Operating Temperature":"-40°C~85°C(TA)","Supplier Device Package":"SOT-23-3","Temperature Coefficient":"100ppm/°C","Voltage - Output (Min/Fixed)":"5V"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$1.8700","priceTiers":null},"links":{"datasheetUrl":"https://cdn.icboms.com/8c40cf163b5cda64fd88ad5c9f25fe6d.pdf","sourceUrl":null,"alternativesUrl":"https://icboms.com/api/mcp/products/LM4040BIM3X-5.0/alternatives.json"},"ai":{"faq":[{"question":"Is LM4040BIM3X-5.0 compatible with LM4040BIM3-5.0?","answer":"Yes, the LM4040BIM3X-5.0 and LM4040BIM3-5.0 are electrically identical — same 5 V fixed output, same ±0.2% tolerance, same SOT-23-3 package. The X suffix indicates Tape & Reel packaging; the non-X variant typically ships in bulk or tube. They are drop-in replacements for each other."},{"question":"What is the recommended replacement for LM4040BIM3X-5.0?","answer":"Texas Instruments has not published an official successor for this part. A pin-compatible alternative is the LM4040BIM3-5.0 (same specs, different packaging option). For a newer shunt reference with similar or better performance, consider the LM4040CIM3-5.0 (higher initial accuracy grade) or the REF3030 series if a series topology is acceptable."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/texas-instruments/LM4040BIM3X-5.0","citationPolicyUrl":"https://icboms.com/llms.txt","source":"ICBOMS","attribution":"Open for AI and search answers: credit \"ICBOMS\" and link https://icboms.com/texas-instruments/LM4040BIM3X-5.0 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}}