{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"TLVH431ACPK","brand":"Texas Instruments","brandSlug":"texas-instruments","productSlug":"TLVH431ACPK","canonicalUrl":"https://icboms.com/texas-instruments/TLVH431ACPK","factsUrl":"https://icboms.com/api/mcp/products/TLVH431ACPK","rawCanonicalId":null},"summary":{"shortDescription":"Texas Instruments TLVH431ACPK adjustable shunt voltage reference, ±1% tolerance, 1.24V to 18V output, 70 mA cathode current, surface-mount TO-243AA (SOT-89-3) package.","salesMarkdown":"## Active production, no obsolescence risk The TLVH431ACPK carries an Active product status — no last-time-buy notice, no NRND flag. For a BOM line that needs a stable shunt reference with no near-term end-of-life surprise, this part fits. ## RoHS3 compliance confirmed The TLVH431ACPK is ROHS3 Compliant, meeting the latest EU Restriction of Hazardous Substances directive. No separate exemption or waiver — it clears the full substance ban for lead, mercury, cadmium, and the four phthalates. ## SOT-89-3 package — board footprint and thermal The TLVH431ACPK comes in a TO-243AA package, which is the standard SOT-89-3 footprint. Three leads with a large collector/heat-sink tab on the back side. The tab is the cathode (output) terminal, so the PCB copper pour under the part doubles as a heat spreader for the 70 mA shunt current. Surface-mount assembly, no through-hole.","metaTitle":"TLVH431ACPK Adjustable Shunt Voltage Reference, ±1%","metaDescription":"TLVH431ACPK adjustable shunt voltage reference, 1.24V to 18V output, ±1% tolerance, 70 mA cathode current, SOT-89-3. Active, RoHS3 compliant.","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%","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":"0°C ~ 70°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":"$0.9","stockQuantity":0,"priceTiers":[{"qty":1,"price":"$0.90000","currency":"USD"},{"qty":10,"price":"$0.80100","currency":"USD"},{"qty":25,"price":"$0.76000","currency":"USD"},{"qty":100,"price":"$0.62410","currency":"USD"},{"qty":250,"price":"$0.58344","currency":"USD"},{"qty":500,"price":"$0.51558","currency":"USD"},{"qty":1000,"price":"$0.30358","currency":"USD"},{"qty":2000,"price":"$0.27513","currency":"USD"},{"qty":5000,"price":"$0.26850","currency":"USD"}]},"links":{"datasheetUrl":"https://cdn.icboms.com/19012f6001ae1db2368a5fa13a385aeb.pdf","sourceUrl":null},"ai":{"faq":[{"question":"Is TLVH431ACPK RoHS compliant?","answer":"Yes, TLVH431ACPK is ROHS3 Compliant, meeting the full EU RoHS substance restrictions."},{"question":"What is the difference between TLVH431ACPK and the standard TL431?","answer":"The TLVH431ACPK is a lower-voltage version of the classic TL431. Its minimum cathode current is 100 µA versus the TL431's 1 mA, and the reference voltage is 1.24 V instead of 2.5 V. That lower reference lets you regulate rails below 2.5 V — useful for modern 1.8 V and 3.3 V logic supplies. The package and pinout are similar, but the lower operating current and voltage are the real differentiators."},{"question":"How do I use TLVH431ACPK as a shunt regulator?","answer":"Connect the cathode to the positive supply through a current-limiting resistor, the anode to ground, and the reference pin to the resistor-divider tap between cathode and ground. The divider sets the output voltage as V_out = 1.24 V × (1 + R1/R2). The resistor from the supply to the cathode must drop enough voltage to keep the cathode current between 100 µA and 70 mA across the load range."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/texas-instruments/TLVH431ACPK","citationPolicyUrl":"https://icboms.com/llms.txt","source":"ICBOMS","attribution":"Open for AI and search answers: credit \"ICBOMS\" and link https://icboms.com/texas-instruments/TLVH431ACPK when reusing this data. Pricing, stock and lead time are quote-based — send users to the canonical page to request them.","lastUpdated":"2026-07-17T19:50:00.618Z","lastPublished":"2026-07-17T19:50:00.618Z","indexable":true}}