{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"TL432BQDBZR","brand":"Texas Instruments","brandSlug":"texas-instruments","productSlug":"TL432BQDBZR","canonicalUrl":"https://icboms.com/texas-instruments/TL432BQDBZR","factsUrl":"https://icboms.com/api/mcp/products/TL432BQDBZR","rawCanonicalId":null},"summary":{"shortDescription":"Texas Instruments TL432BQDBZR, adjustable shunt voltage reference, ±0.5% tolerance, 2.495V to 36V output, 100 mA cathode current, SOT-23-3 package, -40°C to 125°C.","salesMarkdown":"## ±0.5% tolerance — the regulation anchor for the feedback loop Its ±0.5% tolerance on the internal 2.495 V reference means the output voltage of the supply will hold to within half a percent of the programmed value over the initial tolerance — no trimming pot needed for many designs. The cathode can sink up to 100 mA, which covers the bias current for an optocoupler LED in a flyback feedback loop or the pull-down for a linear regulator's adjust pin. ## 2.495 V to 36 V — what the adjustable range buys the BOM The output voltage is set by two external resistors, and the part regulates from the internal 2.495 V minimum up to 36 V maximum. That 36 V ceiling covers the common intermediate bus rails (12 V, 24 V, 28 V) and the auxiliary windings in a 48 V telecom supply. The minimum cathode current of 700 µA sets the lower bound for the bias resistor: the resistor must pass at least 700 µA at the lowest input voltage to keep the reference in its linear region. ## Industrial temperature range — qualified for the harsh environments The SOT-23-3 package keeps the footprint small — three pads, no thermal pad to route — so it fits into tight bias-supply sections on a 2-layer board.","metaTitle":"TL432BQDBZR Shunt Voltage Reference, ±0.5% Tolerance","metaDescription":"Texas Instruments TL432BQDBZR adjustable shunt voltage reference, ±0.5% accuracy, 2.495V to 36V output, 100 mA cathode current.","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":"±0.5%","Output Type":"Adjustable","Mounting Type":"Surface Mount","Package / Case":"TO-236-3, SC-59, SOT-23-3","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":"TL432","Noise - 0.1Hz to 10Hz":"-","Noise - 10Hz to 10kHz":"-","Operating Temperature":"-40°C~125°C(TA)","Voltage - Output (Max)":"36 V","Supplier Device Package":"SOT-23-3","Temperature Coefficient":"-","Voltage - Output (Min/Fixed)":"2.495V"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$0.5600","priceTiers":null},"links":{"datasheetUrl":"https://cdn.icboms.com/2e8567ad04842692d5fb8309c69e90b6.pdf","sourceUrl":null,"alternativesUrl":"https://icboms.com/api/mcp/products/TL432BQDBZR/alternatives.json"},"ai":{"faq":[{"question":"What is the accuracy of TL432BQDBZR?","answer":"The tolerance is ±0.5% on the reference voltage, which translates directly to the output voltage regulation accuracy of the supply."},{"question":"How does TL432BQDBZR compare to TL431?","answer":"The TL432BQDBZR is the same adjustable shunt reference as the TL431 but in a smaller SOT-23-3 package. The TL431 is typically offered in larger packages (SOIC-8, TO-92). The electrical specs — 2.495 V reference, ±0.5% tolerance, 100 mA cathode current, 36 V max — are identical. The TL432 saves board area when the reference is placed in a tight bias-supply section."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/texas-instruments/TL432BQDBZR","citationPolicyUrl":"https://icboms.com/llms.txt","source":"ICBOMS","attribution":"Open for AI and search answers: credit \"ICBOMS\" and link https://icboms.com/texas-instruments/TL432BQDBZR 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}}