{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"TL431BIDCKTE4","brand":"Texas Instruments","brandSlug":"texas-instruments","productSlug":"TL431BIDCKTE4","canonicalUrl":"https://icboms.com/texas-instruments/TL431BIDCKTE4","factsUrl":"https://icboms.com/api/mcp/products/TL431BIDCKTE4","rawCanonicalId":null},"summary":{"shortDescription":"Texas Instruments TL431BIDCKTE4 adjustable shunt voltage reference, ±0.5% tolerance, 100 mA output, 2.495 V reference, SC-70-6 package, -40°C to 85°C.","salesMarkdown":"## 2.495 V reference floor with ±0.5% tolerance Its internal bandgap sets a 2.495 V minimum output, and the output can be programmed up to 36 V using two external resistors. The ±0.5% tolerance on the reference voltage is tighter than the standard TL431's ±1% or ±2% grades, which means this variant can serve as the feedback reference in a switching power supply or linear regulator without an external trim pot — one less component to calibrate on the line. ## 100 mA output and 700 µA cathode current The shunt can sink up to 100 mA continuously, which sets the load-regulation ceiling for a series-pass regulator or the bias current for an optocoupler LED in an isolated supply. Minimum cathode current is 700 µA — stay above this to keep the reference in regulation; below it the output drifts. In a typical 3.3 V rail feedback loop, a 1 kΩ bias resistor from the cathode to the output node delivers about 3.3 mA, comfortably above the floor. ## SC-70-6 package and industrial temperature range Housed in a 6-pin SC-70-6 (SOT-363) package, the footprint is about 2.0 × 2.1 mm — small enough for a compact PSU or a sensor module where board area is tight. It does not extend to 125°C, so under-hood automotive or downhole applications need the TL431BQ or AEC-Q100 qualified variants.","metaTitle":"TL431BIDCKTE4 Shunt Voltage Reference, ±0.5%, SC-70-6","metaDescription":"Texas Instruments TL431BIDCKTE4 adjustable shunt reference, 2.495 V min, 100 mA output, ±0.5% tolerance, SC-70-6 package, -40°C to 85°C.","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":"±0.5%","Output Type":"Adjustable","Mounting Type":"Surface Mount","Package / Case":"6-TSSOP, SC-88, SOT-363","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":"SC-70-6","Temperature Coefficient":"-","Voltage - Output (Min/Fixed)":"2.495V"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":null,"priceTiers":null},"links":{"datasheetUrl":"https://cdn.icboms.com/2e8567ad04842692d5fb8309c69e90b6.pdf","sourceUrl":null,"alternativesUrl":"https://icboms.com/api/mcp/products/TL431BIDCKTE4/alternatives.json"},"ai":{"faq":[{"question":"How does TL431BIDCKTE4 compare to the standard TL431?","answer":"The standard TL431 typically offers ±1% or ±2% reference tolerance. The TL431BIDCKTE4 tightens that to ±0.5%, which eliminates the need for external trimming in precision feedback loops. If you need the wider temperature range, look at the TL431BQ or AEC-Q100 qualified parts."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/texas-instruments/TL431BIDCKTE4","citationPolicyUrl":"https://icboms.com/llms.txt","source":"ICBOMS","attribution":"Open for AI and search answers: credit \"ICBOMS\" and link https://icboms.com/texas-instruments/TL431BIDCKTE4 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}}