{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"SN74LVC1G126DCKJ","brand":"Texas Instruments","brandSlug":"texas-instruments","productSlug":"SN74LVC1G126DCKJ","canonicalUrl":"https://icboms.com/texas-instruments/SN74LVC1G126DCKJ","factsUrl":"https://icboms.com/api/mcp/products/SN74LVC1G126DCKJ","rawCanonicalId":null},"summary":{"shortDescription":"Texas Instruments 74LVC series, Buffer, Non-Inverting, 1-Element, 1-Bit per Element, 3-State Output, 32mA, 1.65V to 5.5V, SC-70-5, -40°C to 125°C.","salesMarkdown":"The Texas Instruments SN74LVC1G126DCKJ is a single-bit, non-inverting buffer with a 3-state output, part of the 74LVC low-voltage CMOS logic family. That means TI no longer manufactures this specific package variant (SC-70-5, Tape & Reel). For a BOM line that must be filled, the options are to buy remaining stock through independent distribution or to migrate to a current-production alternate. If your board accepts the SC-70-5 footprint, the DCKR is a drop-in replacement. No official TI successor beyond the DCKR variant has been published for this order code. ## Date-code and marking check for gray-market stock Because this part is obsolete, any stock you find on the open market may be several years old. The top-side marking is typically a three-character code — check that the laser etch matches TI's known marking scheme for the 74LVC1G126 in SC-70-5. Date codes should be consistent within a reel; a mix of date codes from different production years on the same tape is a red flag. If the parts are from a broker rather than an authorized TI distributor, a decap and X-ray inspection can confirm the die matches the 74LVC1G126 mask set. The SC-70-5 package is small and easily counterfeited with a re-marked generic buffer die, so provenance matters.","metaTitle":"SN74LVC1G126DCKJ Buffer, Non-Inverting, 3-State, 74LVC","metaDescription":"Texas Instruments SN74LVC1G126DCKJ single buffer with 3-state output, 1.65V–5.5V supply, 32mA drive, SC-70-5.","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":null,"productStatus":"Obsolete","categoryPath":["Interface & Transceivers"],"specifications":{"Mfr":"Texas Instruments","Series":"74LVC","Package":"Tape & Reel (TR)","Input Type":"-","Logic Type":"Buffer, Non-Inverting","Output Type":"3-State","Mounting Type":"Surface Mount","Package / Case":"5-TSSOP, SC-70-5, SOT-353","Product Status":"Obsolete","lifecycle_stage":"eol_hot","Voltage - Supply":"1.65V ~ 5.5V","Number of Elements":"1","Base Product Number":"74LVC1G126","Operating Temperature":"-40°C~125°C(TA)","Supplier Device Package":"SC-70-5","Current - Output High, Low":"32mA, 32mA","Number of Bits per Element":"1"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$0.3800","priceTiers":null},"links":{"datasheetUrl":"https://cdn.icboms.com/cbb26954fb99f927b5f5483748cde95a.pdf","sourceUrl":null,"alternativesUrl":"https://icboms.com/api/mcp/products/SN74LVC1G126DCKJ/alternatives.json"},"ai":{"faq":[{"question":"What is the replacement for SN74LVC1G126DCKJ?","answer":"The closest pin-compatible, same-function replacement is the SN74LVC1G126DCKR. It shares the same 74LVC1G126 die, the same SC-70-5 package, and the same electrical ratings — the only difference is the ordering code and reel quantity. For new designs, the DCKR is the recommended active substitute."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/texas-instruments/SN74LVC1G126DCKJ","citationPolicyUrl":"https://icboms.com/llms.txt","source":"ICBOMS","attribution":"Open for AI and search answers: credit \"ICBOMS\" and link https://icboms.com/texas-instruments/SN74LVC1G126DCKJ 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}}