{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"LM431ACM3/NOPB","brand":"Texas Instruments","brandSlug":"texas-instruments","productSlug":"LM431ACM3-NOPB","canonicalUrl":"https://icboms.com/texas-instruments/LM431ACM3-NOPB","factsUrl":"https://icboms.com/api/mcp/products/LM431ACM3%2FNOPB","rawCanonicalId":null},"summary":{"shortDescription":"Texas Instruments LM431ACM3/NOPB adjustable shunt voltage reference, ±2.2% tolerance, 100 mA output, 2.495V–37 V, 50 ppm/°C, SOT-23-3, 0°C–70°C.","salesMarkdown":"## Shunt reference for the BOM — what the ratings mean The LM431ACM3/NOPB is a three-terminal adjustable shunt voltage reference from Texas Instruments. It sets a stable voltage between 2.495 V (min) and 37 V (max) using two external resistors. Output current is rated to 100 mA, and the minimum cathode current for regulation is 1 mA — the load and bias budget for the shunt leg. ## Lifecycle and compliance — no LTB risk Texas Instruments lists the LM431ACM3/NOPB as Active. It is ROHS3 compliant. For a BOM line that needs a commercial-temperature adjustable shunt reference in SOT-23-3, this part is current-production and can be specified into new designs without near-term obsolescence concern.","metaTitle":"LM431ACM3/NOPB Adjustable Shunt Reference, 2.495V–37V","metaDescription":"TI LM431ACM3/NOPB adjustable shunt voltage reference, ±2.2% tolerance, 100 mA output, 50 ppm/°C typ, SOT-23-3. Active, ROHS3.","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)","Tolerance":"±2.2%","Output Type":"Adjustable","Mounting Type":"Surface Mount","Package / Case":"TO-236-3, SC-59, SOT-23-3","Reference Type":"Shunt","lifecycle_stage":"eol_hot","Current - Output":"100 mA","Current - Cathode":"1 mA","Operating Temperature":"0°C ~ 70°C (TA)","Voltage - Output (Max)":"37 V","Supplier Device Package":"SOT-23-3","Temperature Coefficient":"50ppm/°C Typical","Voltage - Output (Min/Fixed)":"2.495V"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$1.27","stockQuantity":0,"priceTiers":[{"qty":1,"price":"$1.27000","currency":"USD"},{"qty":10,"price":"$1.13500","currency":"USD"},{"qty":25,"price":"$1.07720","currency":"USD"},{"qty":100,"price":"$0.88500","currency":"USD"},{"qty":250,"price":"$0.82728","currency":"USD"},{"qty":500,"price":"$0.73108","currency":"USD"},{"qty":1000,"price":"$0.57717","currency":"USD"},{"qty":2000,"price":"$0.54450","currency":"USD"}]},"links":{"datasheetUrl":"https://cdn.icboms.com/4ef3a660563a4b71824729e57d54e8c7.pdf","sourceUrl":null},"ai":{"faq":[{"question":"Can LM431ACM3/NOPB replace TL431?","answer":"Yes — the LM431ACM3/NOPB is functionally equivalent to the industry-standard TL431 adjustable shunt reference. It shares the same three-terminal topology, 2.495 V reference, and adjustable output to 37 V. The ±2.2% tolerance and 50 ppm/°C drift are within the typical TL431 datasheet range. Verify the SOT-23-3 pinout matches your board layout before committing the BOM."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/texas-instruments/LM431ACM3-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/LM431ACM3-NOPB when reusing this data. Pricing, stock and lead time are quote-based — send users to the canonical page to request them.","lastUpdated":"2026-07-17T19:50:00.618Z","lastPublished":"2026-07-17T19:50:00.618Z","indexable":true}}