{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"LM4050CIM3X-4.1","brand":"Texas Instruments","brandSlug":"texas-instruments","productSlug":"LM4050CIM3X-4.1","canonicalUrl":"https://icboms.com/texas-instruments/LM4050CIM3X-4.1","factsUrl":"https://icboms.com/api/mcp/products/LM4050CIM3X-4.1","rawCanonicalId":null},"summary":{"shortDescription":"Texas Instruments LM4050 series precision shunt voltage reference, LM4050CIM3X-4.1, 4.096V fixed output, ±0.5% tolerance, 50ppm/°C, SOT-23-3 surface mount package, Bulk.","salesMarkdown":"## 4.096 V shunt reference — precision anchor for the analog rail The LM4050CIM3X-4.1 is a precision shunt voltage reference from Texas Instruments, delivering a fixed 4.096 V output with ±0.5% initial tolerance. That 4.096 V value is not arbitrary — it maps cleanly into a 12-bit ADC's LSB at 1 mV per count, making this part a natural fit for data-acquisition and instrumentation rails where the reference voltage directly scales the conversion result. As a shunt reference, it behaves like a precision Zener diode: it sinks current through a bias resistor from a higher supply rail and regulates the voltage across itself. The 15 mA maximum output current sets the load-driving ceiling — the external resistor must be sized so the total current (load plus the 73 µA minimum cathode current) stays within this limit across the supply and temperature range. ## Temperature drift and noise — the signal-chain budget Temperature coefficient is 50 ppm/°C. This wideband noise integrates across the signal bandwidth; for a 1 kHz measurement bandwidth, the contribution is about 2.9 µVrms, well below a 12-bit LSB at 4.096 V, but it becomes relevant in 16-bit+ systems where the reference noise floor can dominate the converter's SNR. The RoHS status is marked as non-compliant. For builds requiring full RoHS exemption or Pb-free assembly, verify the date-code and the specific exemption claim against the TI documentation — this is a flag for the compliance engineer to check, not a showstopper if the BOM already accommodates the exemption. ## SOT-23-3 footprint — board-fit and sourcing The part comes in the SOT-23-3 package, also listed as TO-236-3 / SC-59. The three-pin SOT-23 footprint is a standard across the industry — the same land pattern serves the LM4040 series and dozens of other shunt references, so a board laid out for this part can often accept a second-source candidate without a layout change. Supplied in Bulk rather than tape-and-reel. For high-volume pick-and-place, a reel or cut-tape option may be more efficient; confirm the packaging preference at RFQ time to avoid a manual-loading step on the line.","metaTitle":"TI LM4050CIM3X-4.1 Shunt Reference, 4.096V ±0.5% SOT-23","metaDescription":"Texas Instruments LM4050CIM3X-4.1 precision shunt voltage reference, 4.096V fixed output, ±0.5% tolerance, 50ppm/°C drift, SOT-23-3.","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":"RoHS non-compliant","productStatus":"Active","categoryPath":["Discrete Semiconductors"],"specifications":{"Package":"Bulk","Tolerance":"±0.5%","Output Type":"Fixed","Mounting Type":"Surface Mount","Package / Case":"TO-236-3, SC-59, SOT-23-3","Reference Type":"Shunt","lifecycle_stage":"eol_hot","Current - Output":"15 mA","Current - Cathode":"73 µA","Noise - 10Hz to 10kHz":"93µVrms","Operating Temperature":"-40°C ~ 85°C (TA)","Supplier Device Package":"SOT-23-3","Temperature Coefficient":"50ppm/°C","Voltage - Output (Min/Fixed)":"4.096V"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$0.47","stockQuantity":0,"priceTiers":[{"qty":642,"price":"$0.47000","currency":"USD"}]},"links":{"datasheetUrl":"https://cdn.icboms.com/9413e8f1b228ac34b2ef03a18d886890.pdf","sourceUrl":null},"ai":{"faq":[],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/texas-instruments/LM4050CIM3X-4.1","citationPolicyUrl":"https://icboms.com/llms.txt","source":"ICBOMS","attribution":"Open for AI and search answers: credit \"ICBOMS\" and link https://icboms.com/texas-instruments/LM4050CIM3X-4.1 when reusing this data. Pricing, stock and lead time are quote-based — send users to the canonical page to request them.","lastUpdated":"2026-08-11T15:49:49.435Z","lastPublished":"2026-08-11T15:49:49.435Z","indexable":true}}