{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"LM4040A41IDBZTG4","brand":"Texas Instruments","brandSlug":"texas-instruments","productSlug":"LM4040A41IDBZTG4","canonicalUrl":"https://icboms.com/texas-instruments/LM4040A41IDBZTG4","factsUrl":"https://icboms.com/api/mcp/products/LM4040A41IDBZTG4","rawCanonicalId":null},"summary":{"shortDescription":"Texas Instruments LM4040A41IDBZTG4, precision shunt voltage reference, fixed 4.096V output, ±0.1% initial tolerance, 100ppm/°C temperature coefficient, 15 mA output current, 88 µA cathode current, SOT-23-3 package, -40°C to 85°C.","salesMarkdown":"## 4.096V shunt reference with ±0.1% initial tolerance The LM4040A41IDBZTG4 is a precision shunt voltage reference from Texas Instruments, delivering a fixed 4.096V output with a tight ±0.1% initial tolerance. ## Shunt topology — resistor selection drives the BOM Because this is a shunt reference, an external series resistor from the supply to the cathode pin sets the operating current. The cathode current is 88 µA typical, and the device can sink up to 15 mA at the output. The resistor value must supply enough current to keep the reference in regulation at minimum supply voltage while staying below the 15 mA ceiling at maximum supply and zero load. A 1% resistor with adequate power rating is the standard choice; the BOM cost engineer should budget for that resistor as part of the reference cost. ## Package and marking verification The device comes in a SOT-23-3 package (also listed as TO-236-3 or SC-59), supplied on Tape & Reel. The laser etch on the package top should read the TI date-code format consistent with the plant and week — any mismatch in font or layout is a red flag for re-marked stock. Surface-mount reflow profile follows standard SOT-23 guidelines; no special moisture sensitivity level is noted, but a pre-bake at 125°C for 24 hours is prudent if the reel seal is broken. No second-source or direct replacement is listed in the TI portfolio; the LM4040 family includes multiple voltage options and tolerance grades, but this exact 4.096V ±0.1% variant has no pin-compatible alternate on the official cross-reference.","metaTitle":"LM4040A41IDBZTG4 Shunt Reference, 4.096V ±0.1%, SOT-23-3","metaDescription":"Texas Instruments LM4040A41IDBZTG4 precision shunt voltage reference, fixed 4.096V output, ±0.1% tolerance, 100ppm/°C drift, SOT-23-3, -40°C to 85°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)","Tolerance":"±0.1%","Output Type":"Fixed","Mounting Type":"Surface Mount","Package / Case":"TO-236-3, SC-59, SOT-23-3","Reference Type":"Shunt","Voltage - Input":"-","lifecycle_stage":"eol_hot","Current - Output":"15 mA","Current - Supply":"-","Current - Cathode":"88 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)":"4.096V"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":null,"priceTiers":null},"links":{"datasheetUrl":null,"sourceUrl":null,"alternativesUrl":"https://icboms.com/api/mcp/products/LM4040A41IDBZTG4/alternatives.json"},"ai":{"faq":[{"question":"What is the tolerance of LM4040A41IDBZTG4?","answer":"The initial output voltage tolerance is ±0.1%."},{"question":"What is the cathode current of LM4040A41IDBZTG4?","answer":"The typical cathode current is 88 µA. This is the minimum current needed to keep the reference in regulation; the actual operating current is set by the external series resistor and must stay between this value and the 15 mA maximum output current."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/texas-instruments/LM4040A41IDBZTG4","citationPolicyUrl":"https://icboms.com/llms.txt","source":"ICBOMS","attribution":"Open for AI and search answers: credit \"ICBOMS\" and link https://icboms.com/texas-instruments/LM4040A41IDBZTG4 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}}