{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"TL432BQPKG3","brand":"Texas Instruments","brandSlug":"texas-instruments","productSlug":"TL432BQPKG3","canonicalUrl":"https://icboms.com/texas-instruments/TL432BQPKG3","factsUrl":"https://icboms.com/api/mcp/products/TL432BQPKG3","rawCanonicalId":null},"summary":{"shortDescription":"Texas Instruments TL432BQPKG3, adjustable shunt voltage reference, ±0.5% tolerance, 100 mA output, 2.495 V reference, SOT-89-3 package, surface mount, bulk.","salesMarkdown":"## Shunt reference with ±0.5% tolerance — why it matters for the rail The TL432BQPKG3 is an adjustable shunt voltage reference from the TL432 family, with a ±0.5% tolerance that holds the reference voltage tighter than the standard 1% or 2% grades. That tolerance directly sets the accuracy of a regulated output rail or comparator threshold — if your design budgets for a 1% reference, this part gives you margin without moving to a higher-cost series reference. The 100 mA cathode current rating is higher than the typical 50–60 mA of a standard TL431, so this part can drive an optocoupler LED or bias a pass transistor directly without an external buffer. ## Package and footprint — SOT-89-3 Supplied in a SOT-89-3 surface-mount package (TO-243AA case code), with a collector tab that provides a low thermal resistance path to the PCB. The tab is the cathode terminal — the PCB copper area under it sets the junction-to-ambient thermal performance.","metaTitle":"TL432BQPKG3 Shunt Reference, ±0.5% Tolerance, SOT-89-3","metaDescription":"TL432BQPKG3 adjustable shunt voltage reference, ±0.5% tolerance, 100 mA output, SOT-89-3 package.","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":null,"productStatus":"Active","categoryPath":["Analog & Data Acquisition"],"specifications":{"Mfr":"Texas Instruments","Series":"-","Package":"Bulk","Tolerance":"±0.5%","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":"700 µA","Base Product Number":"TL432","Noise - 0.1Hz to 10Hz":"-","Noise - 10Hz to 10kHz":"-","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":"$0.1988","priceTiers":null},"links":{"datasheetUrl":"https://cdn.icboms.com/99b53f28cf28b982a16c2a9ac87cd6e9.pdf","sourceUrl":null,"alternativesUrl":"https://icboms.com/api/mcp/products/TL432BQPKG3/alternatives.json"},"ai":{"faq":[{"question":"What is the tolerance and output current of TL432BQPKG3?","answer":"Tolerance is ±0.5%, and the maximum cathode current is 100 mA. The minimum cathode current for regulation is 700 µA."},{"question":"Is TL432BQPKG3 a direct replacement for TL431 or TL432A?","answer":"The TL432BQPKG3 is pin-compatible with the standard TL431 and TL432A in the SOT-89-3 package — same three-terminal shunt reference topology. The key difference is the ±0.5% tolerance, which is tighter than the typical 1% or 2% grades of the standard parts. Confirm the reference voltage tolerance your BOM requires before substituting."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/texas-instruments/TL432BQPKG3","citationPolicyUrl":"https://icboms.com/llms.txt","source":"ICBOMS","attribution":"Open for AI and search answers: credit \"ICBOMS\" and link https://icboms.com/texas-instruments/TL432BQPKG3 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}}