{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"TL432AIDBZRG4","brand":"Texas Instruments","brandSlug":"texas-instruments","productSlug":"TL432AIDBZRG4","canonicalUrl":"https://icboms.com/texas-instruments/TL432AIDBZRG4","factsUrl":"https://icboms.com/api/mcp/products/TL432AIDBZRG4","rawCanonicalId":null},"summary":{"shortDescription":"Texas Instruments TL432AIDBZRG4, adjustable shunt voltage reference, 2.495 V minimum output, ±1% tolerance, 100 mA cathode current, SOT-23-3 surface-mount package, -40°C to 85°C operating temperature.","salesMarkdown":"## 2.495 V adjustable shunt reference — what the ±1% tolerance buys you Its internal bandgap sets a 2.495 V minimum output, and with an external resistor divider the output can be programmed up to 36 V. The ±1% tolerance on the reference voltage means the feedback loop holds the output within 25 mV of the target at 25 °C — a precision tier that suits power-supply feedback, data-converter references, and supervisory circuits where a standard 2% or 5% part would eat into the error budget. ## 100 mA cathode current — thermal and load derating The 100 mA output current rating is the maximum continuous current the shunt can sink from cathode to anode. In a typical series-pass regulator configuration, the external resistor must be sized so that the sum of the load current and the minimum cathode current (700 µA) stays below this ceiling across the full temperature range. At 85 °C ambient, the SOT-23-3 package's junction-to-ambient thermal resistance limits practical dissipation to roughly 200 mW, which translates to a derated continuous cathode current of about 55 mA at 36 V output — a real constraint for designs that push the part near its voltage maximum. ## SOT-23-3 footprint and supply rails The SOT-23-3 package (TO-236-3 / SC-59) shares the same 0.95 mm pin pitch and 2.9 mm body length as the standard SOT-23 footprint. The cathode pin is the output; the reference pin is the feedback input; the anode connects to ground. No exposed pad — thermal relief is through the cathode trace copper area. The base product number TL432 is a mature, widely second-sourced family — if a supply constraint ever emerges, pin-compatible alternatives from multiple manufacturers exist (e.g., the LMV431 or NCP431 variants in the same SOT-23-3 footprint).","metaTitle":"TL432AIDBZRG4 Shunt Regulator, 2.495 V ±1%, SOT-23-3","metaDescription":"Texas Instruments TL432AIDBZRG4 adjustable shunt voltage reference, 2.495 V min output, ±1% tolerance, 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)","Tolerance":"±1%","Output Type":"Adjustable","Mounting Type":"Surface Mount","Package / Case":"TO-236-3, SC-59, SOT-23-3","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~85°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":"$0.1953","priceTiers":null},"links":{"datasheetUrl":"https://cdn.icboms.com/2e8567ad04842692d5fb8309c69e90b6.pdf","sourceUrl":null,"alternativesUrl":"https://icboms.com/api/mcp/products/TL432AIDBZRG4/alternatives.json"},"ai":{"faq":[{"question":"What is the cathode current range for TL432AIDBZRG4?","answer":"The minimum cathode current for regulation is 700 µA; the maximum continuous rating is 100 mA. Below 700 µA the reference may not regulate; above 100 mA the internal pass transistor exceeds its safe operating area."},{"question":"What is the tolerance of TL432AIDBZRG4?","answer":"The reference voltage tolerance is ±1% at 25 °C. This is the 'A' grade in the TL432A family; standard-grade TL432 parts carry ±2% tolerance."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/texas-instruments/TL432AIDBZRG4","citationPolicyUrl":"https://icboms.com/llms.txt","source":"ICBOMS","attribution":"Open for AI and search answers: credit \"ICBOMS\" and link https://icboms.com/texas-instruments/TL432AIDBZRG4 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}}