{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"REF3133AIDBZR","brand":"Texas Instruments","brandSlug":"texas-instruments","productSlug":"REF3133AIDBZR","canonicalUrl":"https://icboms.com/texas-instruments/REF3133AIDBZR","factsUrl":"https://icboms.com/api/mcp/products/REF3133AIDBZR","rawCanonicalId":null},"summary":{"shortDescription":"Texas Instruments REF3133AIDBZR series voltage reference, 3.3V fixed output, ±0.2% tolerance, 20ppm/°C drift, 10 mA output, 135 µA supply, -40°C to 125°C, SOT-23-3.","salesMarkdown":"## 3.3V fixed reference for precision bias and ADC rails The output noise is specified at 43 µVp-p from 0.1 Hz to 10 Hz and 63 µVrms from 10 Hz to 10 kHz, making it suitable for driving the reference input of precision ADCs or DACs in industrial and automotive signal chains. The SOT-23-3 package (also known as TO-236-3 or SC-59) is a standard three-pin surface-mount footprint that reflows easily and occupies minimal board area. The supply current is 135 µA typical, which keeps the self-heating low even in still-air conditions.","metaTitle":"REF3133AIDBZR Voltage Reference, 3.3V Fixed, ±0.2%, SOT-23-3","metaDescription":"Texas Instruments REF3133AIDBZR series voltage reference: 3.3V fixed output, ±0.2% tolerance, 20ppm/°C drift, -40°C to 125°C. SOT-23-3 package.","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":null,"productStatus":"Active","categoryPath":["Analog & Data Acquisition"],"specifications":{"Mfr":"Texas Instruments","Series":"-","Package":"Tape & Reel (TR); Cut Tape (CT)","Tolerance":"±0.2%","Output Type":"Fixed","Mounting Type":"Surface Mount","Package / Case":"TO-236-3, SC-59, SOT-23-3","Product Status":"Active","Reference Type":"Series","Voltage - Input":"3.35V ~ 5.5V","lifecycle_stage":"eol_hot","Current - Output":"10 mA","Current - Supply":"135µA","Base Product Number":"REF3133","Noise - 0.1Hz to 10Hz":"43µVp-p","Noise - 10Hz to 10kHz":"63µVrms","Operating Temperature":"-40°C~125°C(TA)","Supplier Device Package":"SOT-23-3","Temperature Coefficient":"20ppm/°C","Voltage - Output (Min/Fixed)":"3.3V"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$2.4700","priceTiers":null},"links":{"datasheetUrl":null,"sourceUrl":null,"alternativesUrl":"https://icboms.com/api/mcp/products/REF3133AIDBZR/alternatives.json"},"ai":{"faq":[{"question":"What is the difference between REF3133AIDBZR and REF3133AIDBZT?","answer":"The REF3133AIDBZR and REF3133AIDBZT are electrically identical parts. The difference is in the shipping packaging: the 'R' suffix indicates Tape & Reel (TR) packaging, while the 'T' suffix indicates a different reel or tube variant. Both share the same die, electrical specifications, and SOT-23-3 package."},{"question":"What is the tolerance of REF3133AIDBZR?","answer":"The initial output voltage tolerance is ±0.2%."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/texas-instruments/REF3133AIDBZR","citationPolicyUrl":"https://icboms.com/llms.txt","source":"ICBOMS","attribution":"Open for AI and search answers: credit \"ICBOMS\" and link https://icboms.com/texas-instruments/REF3133AIDBZR 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}}