{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"TL431CDBZRG4","brand":"Texas Instruments","brandSlug":"texas-instruments","productSlug":"TL431CDBZRG4","canonicalUrl":"https://icboms.com/texas-instruments/TL431CDBZRG4","factsUrl":"https://icboms.com/api/mcp/products/TL431CDBZRG4","rawCanonicalId":null},"summary":{"shortDescription":"Texas Instruments TL431CDBZRG4 adjustable shunt voltage reference, ±2.2% tolerance, 100 mA output, SOT-23-3 surface-mount package, 0°C to 70°C operating temperature.","salesMarkdown":"## Shunt reference with ±2.2% tolerance The ±2.2% tolerance on the reference voltage is tighter than the standard 2.5% grade — a meaningful improvement if your design needs a tighter output window without trimming or a higher-cost precision reference. ## Output current and cathode current floor The device can sink up to 100 mA continuous, which sets the load-driving ceiling for shunt regulation or the feedback pull-down in an isolated supply. The minimum cathode current is 1 mA — below that the reference loses regulation, so the bias resistor must be sized to keep at least 1 mA flowing through the device at all times. Housed in a SOT-23-3 package (also known as TO-236-3 or SC-59), the part is a surface-mount fit for compact PCB layouts.","metaTitle":"TL431CDBZRG4 Shunt Voltage Reference, ±2.2% Tolerance","metaDescription":"Texas Instruments TL431CDBZRG4 adjustable shunt voltage reference. ±2.2% tolerance, 100 mA output, SOT-23-3. 0°C to 70°C. Active lifecycle.","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-236-3, SC-59, SOT-23-3","Reference Type":"Shunt","Voltage - Input":"-","lifecycle_stage":"eol_hot","Current - Output":"100 mA","Current - Supply":"-","Current - Cathode":"1 mA","Base Product Number":"TL431","Noise - 0.1Hz to 10Hz":"-","Noise - 10Hz to 10kHz":"-","Operating Temperature":"0°C~70°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":"$0.4600","priceTiers":null},"links":{"datasheetUrl":"https://cdn.icboms.com/2e8567ad04842692d5fb8309c69e90b6.pdf","sourceUrl":null,"alternativesUrl":"https://icboms.com/api/mcp/products/TL431CDBZRG4/alternatives.json"},"ai":{"faq":[{"question":"What is the tolerance of TL431CDBZRG4?","answer":"The TL431CDBZRG4 has a ±2.2% tolerance on the reference voltage."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/texas-instruments/TL431CDBZRG4","citationPolicyUrl":"https://icboms.com/llms.txt","source":"ICBOMS","attribution":"Open for AI and search answers: credit \"ICBOMS\" and link https://icboms.com/texas-instruments/TL431CDBZRG4 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}}