{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"TL431BQLPME3","brand":"Texas Instruments","brandSlug":"texas-instruments","productSlug":"TL431BQLPME3","canonicalUrl":"https://icboms.com/texas-instruments/TL431BQLPME3","factsUrl":"https://icboms.com/api/mcp/products/TL431BQLPME3","rawCanonicalId":null},"summary":{"shortDescription":"Texas Instruments TL431, adjustable shunt voltage reference, ±0.5% tolerance, 100 mA output, TO-92-3 through-hole package, -40°C to 125°C.","salesMarkdown":"## Precision shunt reference for the BOM The Texas Instruments TL431BQLPME3 is a three-terminal adjustable shunt voltage reference that covers the classic TL431 function: set the output anywhere from 2.495 V up to 36 V with two external resistors. The ±0.5% tolerance at 25 °C means the reference voltage stays tight across the band — useful when the ADC or comparator threshold budget has no room for a sloppy bandgap. Rated for 100 mA continuous cathode current with a minimum operating current of 700 µA, it drives optocoupler LEDs, sets error-amplifier references in offline supplies, or biases a comparator threshold without starving the shunt. ## Through-hole package and board fit Housed in a TO-92-3 (TO-226AA) with formed leads, this is the classic three-lead transistor-style package that drops into 0.100-inch pitch plated-through holes. The supplier device package is TO-92-3 — same footprint as the standard 2N3904 or BC547, so the PCB layout is already a commodity. No reflow profile to manage; hand-solder or wave-solder as the assembly line prefers. Available in Cut Tape (CT) or Tape & Box (TB) — the TB option suits pick-and-place with tube-fed or tray-fed handlers that prefer the box format over reels. The base product number TL431 covers the full family; the BQLPME3 suffix flags the ±0.5% B-grade and the through-hole package. ROHS3 compliant per the manufacturer's statement, so it passes the EU RoHS directive without exemption claims.","metaTitle":"Texas Instruments TL431BQLPME3 Shunt Reference, ±0.5%","metaDescription":"Texas Instruments TL431BQLPME3 adjustable shunt voltage reference, ±0.5% tolerance, 100 mA output, TO-92-3. Active production, ROHS3 compliant. Request a quote.","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":"ROHS3 Compliant","productStatus":"Active","categoryPath":["Analog & Data Acquisition"],"specifications":{"Mfr":"Texas Instruments","Series":"-","Package":"Cut Tape (CT); Tape & Box (TB)","Tolerance":"±0.5%","Output Type":"Adjustable","Mounting Type":"Through Hole","Package / Case":"TO-226-3, TO-92-3 (TO-226AA) Formed Leads","Product Status":"Active","Reference Type":"Shunt","Voltage - Input":"-","lifecycle_stage":"eol_hot","Current - Output":"100 mA","Current - Supply":"-","Current - Cathode":"700 µA","Base Product Number":"TL431","Noise - 0.1Hz to 10Hz":"-","Noise - 10Hz to 10kHz":"-","Operating Temperature":"-40°C~125°C(TA)","Voltage - Output (Max)":"36 V","Supplier Device Package":"TO-92-3","Temperature Coefficient":"-","Voltage - Output (Min/Fixed)":"2.495V"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$0.7400","priceTiers":[{"qty":1,"price":"$0.74000","currency":"USD"},{"qty":10,"price":"$0.64700","currency":"USD"},{"qty":25,"price":"$0.60800","currency":"USD"},{"qty":100,"price":"$0.49610","currency":"USD"},{"qty":250,"price":"$0.46084","currency":"USD"},{"qty":500,"price":"$0.39220","currency":"USD"},{"qty":1000,"price":"$0.31376","currency":"USD"},{"qty":2000,"price":"$0.28435","currency":"USD"},{"qty":6000,"price":"$0.27750","currency":"USD"}]},"links":{"datasheetUrl":"https://cdn.icboms.com/2e8567ad04842692d5fb8309c69e90b6.pdf","sourceUrl":null,"alternativesUrl":"https://icboms.com/api/mcp/products/TL431BQLPME3/alternatives.json"},"ai":{"faq":[{"question":"Where can I buy TL431BQLPME3 and how do I get a price?","answer":"The TL431BQLPME3 is sourced to order through independent distribution. No stock-holding claim is made — each order is verified against the lot."},{"question":"Will TL431BQLPME3 drop into a board that was specified around TL431IDBVR without rewiring?","answer":"No — the TL431IDBVR is a surface-mount SOT-23-5 package, while the TL431BQLPME3 is a through-hole TO-92-3. The electrical function (adjustable shunt reference) is the same, but the footprint and mounting method differ. A board spin or adapter is required to swap between the two."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/texas-instruments/TL431BQLPME3","citationPolicyUrl":"https://icboms.com/llms.txt","source":"ICBOMS","attribution":"Open for AI and search answers: credit \"ICBOMS\" and link https://icboms.com/texas-instruments/TL431BQLPME3 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}}