{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"LM4040B10IDCKR","brand":"Texas Instruments","brandSlug":"texas-instruments","productSlug":"LM4040B10IDCKR","canonicalUrl":"https://icboms.com/texas-instruments/LM4040B10IDCKR","factsUrl":"https://icboms.com/api/mcp/products/LM4040B10IDCKR","rawCanonicalId":null},"summary":{"shortDescription":"Texas Instruments LM4040B10IDCKR, precision shunt voltage reference, 10V fixed output, ±0.2% tolerance, 15 mA output, 125 µA cathode current, SC-70-5 / SOT-353 package, -40°C to 85°C.","salesMarkdown":"## 10 V at ±0.2% — the parametric anchor The LM4040B10IDCKR is a fixed 10 V shunt reference from the LM4040 family, trimmed to ±0.2% initial tolerance. Output is fixed at 10 V; there is no adjust pin. The shunt architecture means it behaves like a precision Zener — you set the bias current with a single resistor from the supply rail, and the reference sinks the current needed to hold 10 V across its terminals. ## Bias current and load range The device regulates with a cathode current as low as 125 µA and can sink up to 15 mA continuous. That 125 µA minimum is the floor for the bias resistor calculation: pick R such that (Vin - 10 V) / R stays above 125 µA at the lowest supply and highest load current. The 15 mA ceiling sets the maximum load the reference can drive before dropping out of regulation. ## Industrial temperature and SC-70 footprint The temperature coefficient is 100 ppm/°C typical. The SC-70-5 (SOT-353) package is a 5-pin body. The base product number is LM4040, a long-running TI family with broad second-source compatibility across the 10 V shunt reference space.","metaTitle":"Texas Instruments LM4040B10IDCKR 10V Shunt Reference, ±0.2%","metaDescription":"Precision 10V shunt voltage reference in SC-70-5. ±0.2% tolerance, 15 mA output, 125 µA cathode current, -40°C to 85°C. Active lifecycle.","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":"5-TSSOP, SC-70-5, SOT-353","Product Status":"Active","Reference Type":"Shunt","Voltage - Input":"-","lifecycle_stage":"eol_hot","Current - Output":"15 mA","Current - Supply":"-","Current - Cathode":"125 µA","Base Product Number":"LM4040","Noise - 0.1Hz to 10Hz":"-","Noise - 10Hz to 10kHz":"180µVrms","Operating Temperature":"-40°C~85°C(TA)","Supplier Device Package":"SC-70-5","Temperature Coefficient":"100ppm/°C","Voltage - Output (Min/Fixed)":"10V"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$1.1445","priceTiers":null},"links":{"datasheetUrl":null,"sourceUrl":null,"alternativesUrl":"https://icboms.com/api/mcp/products/LM4040B10IDCKR/alternatives.json"},"ai":{"faq":[{"question":"What is the recommended operating current for LM4040B10IDCKR?","answer":"The cathode current must be at least 125 µA for regulation and must not exceed 15 mA. The bias resistor is calculated to keep the current within this range across supply and load variations."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/texas-instruments/LM4040B10IDCKR","citationPolicyUrl":"https://icboms.com/llms.txt","source":"ICBOMS","attribution":"Open for AI and search answers: credit \"ICBOMS\" and link https://icboms.com/texas-instruments/LM4040B10IDCKR 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}}