{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"TL431BIDBVRE4","brand":"Texas Instruments","brandSlug":"texas-instruments","productSlug":"TL431BIDBVRE4","canonicalUrl":"https://icboms.com/texas-instruments/TL431BIDBVRE4","factsUrl":"https://icboms.com/api/mcp/products/TL431BIDBVRE4","rawCanonicalId":null},"summary":{"shortDescription":"Texas Instruments TL431BIDBVRE4, adjustable shunt voltage reference, ±0.5% tolerance, 100 mA output, 2.495 V reference, SOT-23-5 package, -40°C to 85°C.","salesMarkdown":"## Shunt reference with ±0.5% accuracy in SOT-23-5 It is part of the broad TL431 family, widely used as a precision reference in linear and switched-mode power supplies, battery chargers, and data-acquisition systems. The ±0.5% tolerance (B grade) places it above the standard ±1% or ±2% TL431 variants, making it suitable for applications where tighter output accuracy is needed without moving to an external precision reference. ## 100 mA cathode current and 36 V max output The device can sink up to 100 mA continuous cathode current, which determines the maximum load the shunt regulator can handle or the base-drive current it can supply to an external pass transistor. The output voltage is adjustable from 2.495 V up to 36 V via two external resistors, covering the common 3.3 V, 5 V, and 12 V rail references. The TL431BIDBVRE4 is officially marked as Obsolete by Texas Instruments. Buyers should confirm date code and quantity availability at time of inquiry; no franchised stock is expected. ## Package and footprint: SOT-23-5 (SC-74A) The 5-pin footprint is shared with many other TL431 variants, so a board designed for the SOT-23-5 package can accept multiple grades or suppliers without layout changes. The shipping medium is Tape & Reel (TR), the standard for automated pick-and-place assembly.","metaTitle":"TL431BIDBVRE4 Shunt Voltage Reference, ±0.5%, SOT-23-5","metaDescription":"Texas Instruments TL431BIDBVRE4 adjustable shunt voltage reference, ±0.5% tolerance, 100 mA output, SOT-23-5.","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":null,"productStatus":"Obsolete","categoryPath":["Analog & Data Acquisition"],"specifications":{"Mfr":"Texas Instruments","Series":"-","Package":"Tape & Reel (TR)","Tolerance":"±0.5%","Output Type":"Adjustable","Mounting Type":"Surface Mount","Package / Case":"SC-74A, SOT-753","Product Status":"Obsolete","Reference Type":"Shunt","Voltage - Input":"-","lifecycle_stage":"eol_hot","Current - Output":"100 mA","Current - Supply":"-","Current - Cathode":"700 µA","Base Product Number":"TL431","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-23-5","Temperature Coefficient":"-","Voltage - Output (Min/Fixed)":"2.495V"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":null,"priceTiers":null},"links":{"datasheetUrl":"https://cdn.icboms.com/99b53f28cf28b982a16c2a9ac87cd6e9.pdf","sourceUrl":null,"alternativesUrl":"https://icboms.com/api/mcp/products/TL431BIDBVRE4/alternatives.json"},"ai":{"faq":[{"question":"What is the replacement for TL431BIDBVRE4?","answer":"Texas Instruments does not list a direct official successor for this specific B-grade SOT-23-5 variant. A functionally equivalent replacement would be any TL431 in the same SOT-23-5 package with a ±0.5% tolerance, such as the TL431BIDBZR (if still active) or the TL431BQDBZR (automotive grade). Confirm the exact tolerance and package before substituting."},{"question":"What is the accuracy of TL431BIDBVRE4?","answer":"The TL431BIDBVRE4 has a ±0.5% tolerance on the reference voltage (2.495 V typical). This is the B-grade accuracy level, tighter than the standard ±1% or ±2% TL431 grades."},{"question":"Is TL431BIDBVRE4 equivalent to TL431?","answer":"Yes, the TL431BIDBVRE4 is a specific variant of the TL431 family. It shares the same basic function and pinout as the generic TL431, but with a tighter ±0.5% tolerance and in a SOT-23-5 package. Any TL431 in the same package can generally be used as a drop-in replacement, provided the tolerance grade meets the design requirement."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/texas-instruments/TL431BIDBVRE4","citationPolicyUrl":"https://icboms.com/llms.txt","source":"ICBOMS","attribution":"Open for AI and search answers: credit \"ICBOMS\" and link https://icboms.com/texas-instruments/TL431BIDBVRE4 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}}