{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"LM4051CEM3-ADJ/NOPB","brand":"Texas Instruments","brandSlug":"texas-instruments","productSlug":"LM4051CEM3-ADJ-NOPB","canonicalUrl":"https://icboms.com/texas-instruments/LM4051CEM3-ADJ-NOPB","factsUrl":"https://icboms.com/api/mcp/products/LM4051CEM3-ADJ%2FNOPB","rawCanonicalId":null},"summary":{"shortDescription":"Texas Instruments LM4051CEM3-ADJ/NOPB precision shunt voltage reference, adjustable output 1.212V to 10V, ±0.5% tolerance, 50ppm/°C drift, 75 µA min cathode current, SOT-23-3, -40°C to 125°C.","salesMarkdown":"## Obsolete — sourcing this reference for a BOM line For a BOM line that calls out this part, the procurement path is independent distribution — surplus or new-old-stock inventory sourced per RFQ. Any replacement would need to be evaluated for pin-compatibility, output range, and temperature coefficient against the original design's requirements. The ±0.5% initial tolerance and 50 ppm/°C temperature coefficient place it in the mid-precision tier — adequate for 8- to 10-bit ADC references, comparator thresholds, or regulator feedback dividers where a few millivolts of drift over temperature is acceptable. Minimum cathode current is 75 µA, which sets the lower bound on the bias resistor from the supply rail. The shunt can sink up to 12 mA, so the total current through the reference plus the load must stay under that ceiling. In a battery-powered circuit drawing 100 µA from the reference, the 75 µA minimum means the bias resistor must be sized to deliver at least that much even at the lowest supply voltage. ## SOT-23-3 package — board-fit note The part comes in a three-lead SOT-23-3 (TO-236-3 / SC-59) surface-mount package. No exposed pad; the die junction-to-ambient thermal path relies on the leadframe and board traces.","metaTitle":"LM4051CEM3-ADJ/NOPB Shunt Reference, Adjustable 1.212V-10V","metaDescription":"TI LM4051CEM3-ADJ/NOPB precision shunt voltage reference, adjustable output 1.212V to 10V, ±0.5% tolerance, -40°C to 125°C, 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":"±0.5%","Output Type":"Adjustable","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":"12 mA","Current - Supply":"-","Current - Cathode":"75 µA","Base Product Number":"LM4051","Noise - 0.1Hz to 10Hz":"-","Noise - 10Hz to 10kHz":"20µVrms","Operating Temperature":"-40°C~125°C(TA)","Voltage - Output (Max)":"10 V","Supplier Device Package":"SOT-23-3","Temperature Coefficient":"50ppm/°C","Voltage - Output (Min/Fixed)":"1.212V"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":null,"priceTiers":null},"links":{"datasheetUrl":"https://cdn.icboms.com/e499b7cd54f3272232db27a8df268948.pdf","sourceUrl":null,"alternativesUrl":"https://icboms.com/api/mcp/products/LM4051CEM3-ADJ%2FNOPB/alternatives.json"},"ai":{"faq":[{"question":"Is LM4051CEM3-ADJ/NOPB obsolete?","answer":"Yes, Texas Instruments lists this part as Obsolete. TI no longer manufactures it, and no official successor part number has been published. Sourcing is limited to surplus or new-old-stock inventory through independent distributors."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/texas-instruments/LM4051CEM3-ADJ-NOPB","citationPolicyUrl":"https://icboms.com/llms.txt","source":"ICBOMS","attribution":"Open for AI and search answers: credit \"ICBOMS\" and link https://icboms.com/texas-instruments/LM4051CEM3-ADJ-NOPB 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}}