{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"LM45CIM3X/NOPB","brand":"Texas Instruments","brandSlug":"texas-instruments","productSlug":"LM45CIM3X-NOPB","canonicalUrl":"https://icboms.com/texas-instruments/LM45CIM3X-NOPB","factsUrl":"https://icboms.com/api/mcp/products/LM45CIM3X%2FNOPB","rawCanonicalId":null},"summary":{"shortDescription":"Texas Instruments LM45CIM3X/NOPB analog temperature sensor, 10mV/°C output scale, ±3°C accuracy, SOT-23-3 surface-mount package, 4V to 10V supply, -40°C to 125°C range.","salesMarkdown":"## What the 10 mV/°C output means for your ADC input The LM45CIM3X/NOPB outputs an analog voltage that scales 10 mV per degree Celsius — at 25°C the output sits at 250 mV, at 100°C it is 1.0 V. A 10-bit ADC with a 2.5 V reference resolves about 0.24°C per LSB, so no external gain stage is needed for most microcontroller inputs. The 4 V to 10 V supply range means the sensor runs cleanly off a 5 V rail or a 9 V battery, but the 4 V minimum excludes direct 3.3 V operation — a boost regulator or a different low-voltage sensor is required for 3.3 V-only designs. ## Temperature range and accuracy — where it fits and where it doesn't The local sensing range is -20°C to 100°C, which matches the calibrated band. If the application requires measuring the die temperature of a nearby hot component above 100°C, the sensor itself survives 125°C ambient but the output accuracy is not guaranteed beyond 100°C. ## Package and board-fit — SOT-23-3 reuse The SOT-23-3 (TO-236-3, SC-59) footprint is shared with the LM35, MCP9700, and many small-signal transistors — a board already laid out for those parts accepts the LM45CIM3X/NOPB without a respin. The tape-and-reel or cut-tape packaging means it feeds into standard pick-and-place lines. Surface-mount only — no through-hole variant exists for this order code. The three-pin layout (V+, GND, Vout) is straightforward; no exposed pad or thermal slug to manage. ROHS3 compliant for unrestricted global shipment.","metaTitle":"TI LM45CIM3X/NOPB Analog Temp Sensor, 10mV/°C, SOT-23-3","metaDescription":"Texas Instruments LM45CIM3X/NOPB analog temperature sensor, 10mV/°C output, ±3°C accuracy, SOT-23-3 package, 4V-10V supply, -40°C to 125°C range.","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":"ROHS3 Compliant","productStatus":"Active","categoryPath":["Discrete Semiconductors"],"specifications":{"Package":"Tape & Reel (TR); Cut Tape (CT)","Resolution":"10mV/°C","Output Type":"Analog Voltage","Sensor Type":"Analog, Local","Mounting Type":"Surface Mount","Package / Case":"TO-236-3, SC-59, SOT-23-3","Test Condition":"25°C (-20°C ~ 100°C)","lifecycle_stage":"eol_hot","Voltage - Supply":"4V ~ 10V","Operating Temperature":"-40°C ~ 125°C","Supplier Device Package":"SOT-23-3","Accuracy - Highest (Lowest)":"±3°C (±4°C)","Sensing Temperature - Local":"-20°C ~ 100°C"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$1.98","stockQuantity":0,"priceTiers":[{"qty":1,"price":"$1.98000","currency":"USD"},{"qty":5,"price":"$1.90400","currency":"USD"},{"qty":10,"price":"$1.54700","currency":"USD"},{"qty":25,"price":"$1.33280","currency":"USD"},{"qty":50,"price":"$1.15440","currency":"USD"},{"qty":100,"price":"$1.04720","currency":"USD"},{"qty":500,"price":"$0.88060","currency":"USD"},{"qty":1000,"price":"$0.78540","currency":"USD"},{"qty":3000,"price":"$0.76160","currency":"USD"},{"qty":6000,"price":"$0.71400","currency":"USD"}]},"links":{"datasheetUrl":"https://cdn.icboms.com/d40a211b4b1eeb741a52d46f3f90820b.pdf","sourceUrl":null},"ai":{"faq":[{"question":"Can I use this sensor with a 3.3 V microcontroller?","answer":"Not directly — the minimum supply voltage is 4 V. A 3.3 V rail is below the operating threshold. You would need a boost converter to 4 V minimum, or select a different sensor that operates at 3.3 V."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/texas-instruments/LM45CIM3X-NOPB","citationPolicyUrl":"https://icboms.com/llms.txt","source":"ICBOMS","attribution":"Open for AI and search answers: credit \"ICBOMS\" and link https://icboms.com/texas-instruments/LM45CIM3X-NOPB 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}}