{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"TLVH431QPK","brand":"Texas Instruments","brandSlug":"texas-instruments","productSlug":"TLVH431QPK","canonicalUrl":"https://icboms.com/texas-instruments/TLVH431QPK","factsUrl":"https://icboms.com/api/mcp/products/TLVH431QPK","rawCanonicalId":null},"summary":{"shortDescription":"Texas Instruments TLVH431QPK adjustable shunt voltage reference, ±1.5% tolerance, 70 mA output, 1.24V to 18V, SOT-89-3 surface mount, -40°C to 125°C.","salesMarkdown":"## SOT-89-3 footprint and thermal integration The TLVH431QPK: This three-lead package has a large copper tab on the bottom that doubles as the cathode connection and the primary heat path. The tab must be soldered to a PCB copper plane; without it the 70 mA output current at elevated ambient will push the junction above the 125°C rated maximum. The 1.24V minimum reference voltage means the cathode-to-anode dropout is effectively the reference itself — the device regulates down to that floor. Output can be set anywhere from 1.24V up to 18V using two external resistors in the classic shunt configuration. ## Tolerance and temperature range for the BOM line For a power-supply feedback path that must hold ±2% regulation across temperature, this part delivers the margin without needing a precision series reference. The 100 µA minimum cathode current is the device's own operating floor — the external resistor string must pass at least this much current for the shunt to regulate. Below that the output drifts out of the ±1.5% window.","metaTitle":"Texas Instruments TLVH431QPK Shunt Reference, 1.5% SOT-89-3","metaDescription":"TLVH431QPK adjustable shunt voltage reference from TI. 1.24V to 18V output, 70 mA, ±1.5% tolerance, -40°C to 125°C. SOT-89-3 package. Active, ROHS3.","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":"ROHS3 Compliant","productStatus":"Active","categoryPath":["Discrete Semiconductors"],"specifications":{"Package":"Tape & Reel (TR); Cut Tape (CT)","Tolerance":"±1.5%","Output Type":"Adjustable","Mounting Type":"Surface Mount","Package / Case":"TO-243AA","Reference Type":"Shunt","lifecycle_stage":"eol_hot","Current - Output":"70 mA","Current - Cathode":"100 µA","Operating Temperature":"-40°C ~ 125°C (TA)","Voltage - Output (Max)":"18 V","Supplier Device Package":"SOT-89-3","Voltage - Output (Min/Fixed)":"1.24V"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$1.07","stockQuantity":0,"priceTiers":[{"qty":1,"price":"$1.07000","currency":"USD"},{"qty":10,"price":"$0.96000","currency":"USD"},{"qty":25,"price":"$0.91120","currency":"USD"},{"qty":100,"price":"$0.74850","currency":"USD"},{"qty":250,"price":"$0.69964","currency":"USD"},{"qty":500,"price":"$0.61830","currency":"USD"},{"qty":1000,"price":"$0.36464","currency":"USD"},{"qty":2000,"price":"$0.33046","currency":"USD"},{"qty":5000,"price":"$0.32250","currency":"USD"}]},"links":{"datasheetUrl":"https://cdn.icboms.com/19012f6001ae1db2368a5fa13a385aeb.pdf","sourceUrl":null},"ai":{"faq":[{"question":"How can I order TLVH431QPK or request a quote?","answer":"The TLVH431QPK is an active Texas Instruments shunt reference available to order. Sourcing is confirmed per RFQ — submit your target quantity and we will provide current pricing and delivery timing. No stock-holding claim; availability is verified at quote time."},{"question":"Will TLVH431QPK drop into a board designed for TL431IDBVR?","answer":"Pin-compatible in the SOT-89-3 footprint — the reference voltage, cathode current, and output voltage range overlap. Confirm the external resistor values are recalculated for the 1.24V reference floor."},{"question":"What compliance documentation does Texas Instruments provide for TLVH431QPK?","answer":"The device is ROHS3 compliant per the manufacturer's lifecycle record. Standard TI compliance documentation (RoHS, REACH, material declaration) is available through the product support chain."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/texas-instruments/TLVH431QPK","citationPolicyUrl":"https://icboms.com/llms.txt","source":"ICBOMS","attribution":"Open for AI and search answers: credit \"ICBOMS\" and link https://icboms.com/texas-instruments/TLVH431QPK when reusing this data. Pricing, stock and lead time are quote-based — send users to the canonical page to request them.","lastUpdated":"2026-08-11T15:49:49.435Z","lastPublished":"2026-08-11T15:49:49.435Z","indexable":true}}