{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"LM4040D50IDBZT","brand":"Texas Instruments","brandSlug":"texas-instruments","productSlug":"LM4040D50IDBZT","canonicalUrl":"https://icboms.com/texas-instruments/LM4040D50IDBZT","factsUrl":"https://icboms.com/api/mcp/products/LM4040D50IDBZT","rawCanonicalId":null},"summary":{"shortDescription":"Texas Instruments LM4040D50IDBZT, shunt voltage reference, fixed 5V output, ±1% tolerance, 80 µVrms noise, SOT-23-3 package, -40°C to 85°C.","salesMarkdown":"## Fixed 5V shunt reference in a SOT-23-3 It is a three-terminal device that behaves like a Zener diode — it regulates the voltage across itself by shunting current through the cathode. The ±1% initial tolerance and 80 µVrms noise over 10 Hz to 10 kHz make it a workhorse reference for general-purpose ADC biasing, comparator thresholds, and power-supply monitoring in industrial and consumer designs. The 5V output is fixed — no external trim resistors. The shunt architecture means you need a series resistor from the supply to the cathode to set the bias current; the cathode current range is 95 µA minimum to 15 mA maximum. Keep the bias current above 95 µA to stay in regulation, and size the resistor so the total current (load + reference) stays under 15 mA.","metaTitle":"LM4040D50IDBZT Shunt Voltage Reference, 5V ±1%, SOT-23-3","metaDescription":"Texas Instruments LM4040D50IDBZT precision shunt reference, fixed 5V output, ±1% tolerance, 80 µVrms noise. Active lifecycle, SOT-23-3.","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":"±1%","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":"150ppm/°C","Voltage - Output (Min/Fixed)":"5V"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$1.3600","priceTiers":null},"links":{"datasheetUrl":null,"sourceUrl":null,"alternativesUrl":"https://icboms.com/api/mcp/products/LM4040D50IDBZT/alternatives.json"},"ai":{"faq":[{"question":"Can the LM4040D50IDBZT replace the LM4040D50?","answer":"The LM4040D50IDBZT is a specific ordering code within the LM4040 family. The base product number is LM4040, and the suffix indicates package and tape/reel options. As long as the package (SOT-23-3) and tolerance (±1%) match your BOM, it is a direct functional replacement for other LM4040D50 variants in the same package."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/texas-instruments/LM4040D50IDBZT","citationPolicyUrl":"https://icboms.com/llms.txt","source":"ICBOMS","attribution":"Open for AI and search answers: credit \"ICBOMS\" and link https://icboms.com/texas-instruments/LM4040D50IDBZT 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}}