{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"LM4040B50IDBZR","brand":"Texas Instruments","brandSlug":"texas-instruments","productSlug":"LM4040B50IDBZR","canonicalUrl":"https://icboms.com/texas-instruments/LM4040B50IDBZR","factsUrl":"https://icboms.com/api/mcp/products/LM4040B50IDBZR","rawCanonicalId":null},"summary":{"shortDescription":"Texas Instruments LM4040B50IDBZR, precision shunt voltage reference, 5V fixed output, ±0.2% tolerance, 100ppm/°C, SOT-23-3 surface mount, -40°C to 85°C.","salesMarkdown":"## 5V shunt reference in a SOT-23-3 — what the ratings mean The ±0.2 % initial tolerance and 100 ppm/°C temperature coefficient mean this part holds its output within about 10 mV over the full -40 to 85 °C range — tight enough for a 12-bit ADC reference without external trimming. The shunt topology sinks up to 15 mA through the cathode, so the series resistor sets the total current budget; the 95 µA minimum cathode current is the floor below which regulation drops out. The part ships in a SOT-23-3 package (also listed as TO-236-3 / SC-59). The three-pin footprint is standard: cathode, anode, and no-connect. The 0.95 mm pin pitch and 2.9 mm body length fit comfortably on a two-layer board. No official second-source or successor is listed, but the LM4040 family includes multiple tolerance grades (A/B/C/D) and output voltages (2.5 V, 4.096 V, 5 V) in the same SOT-23-3 footprint if a design change is needed.","metaTitle":"TI LM4040B50IDBZR Shunt Voltage Reference, 5V ±0.2%","metaDescription":"Texas Instruments LM4040B50IDBZR precision shunt reference: 5V fixed output, ±0.2% tolerance, 100ppm/°C drift, SOT-23-3. Active production.","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); Cut Tape (CT)","Tolerance":"±0.2%","Output Type":"Fixed","Mounting Type":"Surface Mount","Package / Case":"TO-236-3, SC-59, SOT-23-3","Product Status":"Active","Reference Type":"Shunt","Voltage - Input":"-","lifecycle_stage":"eol_hot","Current - Output":"15 mA","Current - Supply":"-","Current - Cathode":"95 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":"$2.1700","priceTiers":null},"links":{"datasheetUrl":null,"sourceUrl":null,"alternativesUrl":"https://icboms.com/api/mcp/products/LM4040B50IDBZR/alternatives.json"},"ai":{"faq":[],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/texas-instruments/LM4040B50IDBZR","citationPolicyUrl":"https://icboms.com/llms.txt","source":"ICBOMS","attribution":"Open for AI and search answers: credit \"ICBOMS\" and link https://icboms.com/texas-instruments/LM4040B50IDBZR 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}}