{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"LM4041AIM3-1.2","brand":"Texas Instruments","brandSlug":"texas-instruments","productSlug":"LM4041AIM3-1.2","canonicalUrl":"https://icboms.com/texas-instruments/LM4041AIM3-1.2","factsUrl":"https://icboms.com/api/mcp/products/LM4041AIM3-1.2","rawCanonicalId":null},"summary":{"shortDescription":"Texas Instruments LM4041AIM3-1.2, precision shunt voltage reference, fixed 1.225V output, ±0.1% tolerance, 20µVrms noise, 100ppm/°C drift, SOT-23-3 package, -40°C to 85°C.","salesMarkdown":"The LM4041AIM3-1.2 is a precision shunt voltage reference from Texas Instruments, delivering a fixed 1.225V output with ±0.1% initial tolerance. It operates as a two-terminal shunt regulator — the cathode current sets the reference voltage across the load, with a minimum cathode current of 65 µA and a maximum output current of 12 mA. The 20 µVrms noise (10 Hz to 10 kHz) and 100 ppm/°C temperature coefficient make it suitable for precision analog circuits: ADC references, comparator thresholds, and regulator feedback dividers where a stable 1.225V rail is needed. The ±0.1% initial accuracy means the output voltage at 25 °C is within 1.225V ±1.225 mV — tight enough for a 12-bit ADC reference without external trimming. For a calibration lab or an industrial sensor interface, this drift sets the system accuracy floor. ## SOT-23-3 footprint — board-level fit The three-pin footprint is standard: cathode, anode, and no-connect. No special thermal pad or exposed paddle — the shunt reference dissipates through the leads and the copper pad area on the board.","metaTitle":"LM4041AIM3-1.2 Shunt Voltage Reference, 1.225V ±0.1%","metaDescription":"LM4041AIM3-1.2 precision shunt reference: 1.225V fixed output, ±0.1% tolerance, 20µVrms 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); Cut Tape (CT)","Tolerance":"±0.1%","Output Type":"Fixed","Mounting Type":"Surface Mount","Package / Case":"TO-236-3, SC-59, SOT-23-3","Product Status":"Not For New Designs","Reference Type":"Shunt","Voltage - Input":"-","lifecycle_stage":"eol_hot","Current - Output":"12 mA","Current - Supply":"-","Current - Cathode":"65 µA","Base Product Number":"LM4041","Noise - 0.1Hz to 10Hz":"-","Noise - 10Hz to 10kHz":"20µVrms","Operating Temperature":"-40°C~85°C(TA)","Supplier Device Package":"SOT-23-3","Temperature Coefficient":"100ppm/°C","Voltage - Output (Min/Fixed)":"1.225V"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$3.1000","priceTiers":null},"links":{"datasheetUrl":"https://cdn.icboms.com/d2855eaed3a119e1ade8ae46dfbd1dff.pdf","sourceUrl":null,"alternativesUrl":"https://icboms.com/api/mcp/products/LM4041AIM3-1.2/alternatives.json"},"ai":{"faq":[{"question":"Is LM4041AIM3-1.2 obsolete?","answer":"Yes, the LM4041AIM3-1.2 is listed as Obsolete. No official replacement part is documented. For a BOM that requires this exact reference, the supply path is surplus or broker stock."},{"question":"What is the tolerance of LM4041AIM3-1.2?","answer":"The initial tolerance is ±0.1%."},{"question":"Can LM4041AIM3-1.2 be used in ADC reference circuits?","answer":"Yes. The 1.225V output, ±0.1% accuracy, 20 µVrms noise, and 100 ppm/°C drift are suitable as a reference for 12-bit or lower-resolution ADCs, provided the 12 mA maximum output current meets the ADC reference input current requirements."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/texas-instruments/LM4041AIM3-1.2","citationPolicyUrl":"https://icboms.com/llms.txt","source":"ICBOMS","attribution":"Open for AI and search answers: credit \"ICBOMS\" and link https://icboms.com/texas-instruments/LM4041AIM3-1.2 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}}