{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"LM4040D30IDBZR","brand":"Texas Instruments","brandSlug":"texas-instruments","productSlug":"LM4040D30IDBZR","canonicalUrl":"https://icboms.com/texas-instruments/LM4040D30IDBZR","factsUrl":"https://icboms.com/api/mcp/products/LM4040D30IDBZR","rawCanonicalId":null},"summary":{"shortDescription":"Texas Instruments LM4040D30IDBZR, precision shunt voltage reference, 3 V fixed output, ±1% tolerance, 15 mA output, 82 µA cathode current, SOT-23-3 surface-mount package, -40°C to 85°C.","salesMarkdown":"## 3 V shunt reference in SOT-23-3 — selection anchor It operates as a two-terminal shunt device, requiring only a series resistor from the supply to set the bias current — no external bypass capacitor needed for stability. The 15 mA output current and 82 µA cathode current define the operating window: the series resistor must be chosen so the cathode current stays above 82 µA to maintain regulation, while the total load plus bias current does not exceed 15 mA. ## Temperature drift and noise floor Broadband noise is specified at 35 µVrms over 10 Hz to 10 kHz, making it suitable for low-noise analog rails and ADC references where the noise budget is a few hundred microvolts. ## Package and mounting — SOT-23-3 Housed in a 3-lead SOT-23-3 package (also known as TO-236-3 / SC-59), this part is a surface-mount device with a 0.95 mm pin pitch. The small footprint suits space-constrained boards, but the thermal dissipation is limited — the 15 mA output at 3 V means the device dissipates up to 45 mW, which is within the SOT-23-3's capability at 85°C with standard PCB copper.","metaTitle":"LM4040D30IDBZR Shunt Voltage Reference, 3 V Fixed, ±1%","metaDescription":"Texas Instruments LM4040D30IDBZR precision shunt reference, 3 V fixed output, ±1% tolerance, 82 µA cathode current, SOT-23-3 package.","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":"82 µA","Base Product Number":"LM4040","Noise - 0.1Hz to 10Hz":"-","Noise - 10Hz to 10kHz":"35µVrms","Operating Temperature":"-40°C~85°C(TA)","Supplier Device Package":"SOT-23-3","Temperature Coefficient":"150ppm/°C","Voltage - Output (Min/Fixed)":"3V"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$0.7600","priceTiers":null},"links":{"datasheetUrl":null,"sourceUrl":null,"alternativesUrl":"https://icboms.com/api/mcp/products/LM4040D30IDBZR/alternatives.json"},"ai":{"faq":[],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/texas-instruments/LM4040D30IDBZR","citationPolicyUrl":"https://icboms.com/llms.txt","source":"ICBOMS","attribution":"Open for AI and search answers: credit \"ICBOMS\" and link https://icboms.com/texas-instruments/LM4040D30IDBZR 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}}