{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"TL432QPKG3","brand":"Texas Instruments","brandSlug":"texas-instruments","productSlug":"TL432QPKG3","canonicalUrl":"https://icboms.com/texas-instruments/TL432QPKG3","factsUrl":"https://icboms.com/api/mcp/products/TL432QPKG3","rawCanonicalId":null},"summary":{"shortDescription":"Texas Instruments TL432QPKG3 shunt voltage reference, adjustable output 2.495 V to 36 V, ±2.2% tolerance, 100 mA cathode current, SOT-89-3 surface-mount package, -40°C to 125°C operating range.","salesMarkdown":"## Adjustable shunt reference in SOT-89-3 It provides a 2.495 V internal reference and can be programmed via two external resistors to any output voltage between 2.495 V and 36 V. The shunt regulator sinks up to 100 mA through the cathode, making it suitable for driving optocouplers in isolated power supplies or clamping overvoltage on a rail. ## Reference tolerance and thermal range Tolerance is specified at ±2.2 %, a tighter bin than the standard 2.5 % grade found on many TL431 variants. This reduces worst-case feedback error in precision power supplies and battery chargers. The SOT-89-3 package with a copper pad area under the tab helps dissipate heat when sinking continuous cathode current.","metaTitle":"TL432QPKG3 Shunt Voltage Reference, Adjustable 2.495V–36V","metaDescription":"TL432QPKG3 adjustable shunt reference, ±2.2% tolerance, 100 mA cathode current, -40°C to 125°C. SOT-89-3 surface-mount package.","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":"±2.2%","Output Type":"Adjustable","Mounting Type":"Surface Mount","Package / Case":"TO-243AA","Product Status":"Active","Reference Type":"Shunt","Voltage - Input":"-","lifecycle_stage":"eol_hot","Current - Output":"100 mA","Current - Supply":"-","Current - Cathode":"1 mA","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-89-3","Temperature Coefficient":"-","Voltage - Output (Min/Fixed)":"2.495V"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$0.5000","priceTiers":null},"links":{"datasheetUrl":"https://cdn.icboms.com/2e8567ad04842692d5fb8309c69e90b6.pdf","sourceUrl":null,"alternativesUrl":"https://icboms.com/api/mcp/products/TL432QPKG3/alternatives.json"},"ai":{"faq":[{"question":"Is TL432QPKG3 equivalent to TL431?","answer":"Functionally yes — both are adjustable shunt references with the same 2.495 V internal reference and similar pinout. The TL432QPKG3 offers a tighter ±2.2% tolerance and comes in the smaller SOT-89-3 package, whereas the TL431 is commonly found in TO-92 or SOT-23. Pin-compatibility depends on the package; for a drop-in replacement, confirm the pin assignment on your board."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/texas-instruments/TL432QPKG3","citationPolicyUrl":"https://icboms.com/llms.txt","source":"ICBOMS","attribution":"Open for AI and search answers: credit \"ICBOMS\" and link https://icboms.com/texas-instruments/TL432QPKG3 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}}