{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"SMCJ12A-TR","brand":"STMicroelectronics","brandSlug":"stmicroelectronics","productSlug":"SMCJ12A-TR","canonicalUrl":"https://icboms.com/stmicroelectronics/SMCJ12A-TR","factsUrl":"https://icboms.com/api/mcp/products/SMCJ12A-TR","rawCanonicalId":null},"summary":{"shortDescription":"STMicroelectronics SMCJ, TRANSIL™ series, SMCJ12A-TR, Zener TVS diode, 1500W (1.5kW) peak pulse power, 12V reverse standoff, 13.3V breakdown, 25.3V clamping, unidirectional, DO-214AB SMC package, surface mount, -55°C~150°C.","salesMarkdown":"## TVS clamp for 12V rails — 1500 W surge rating ## Breakdown and clamping — the protection window The minimum breakdown voltage is 13.3 V, which sits 1.3 V above the 12 V reverse standoff — enough margin to avoid nuisance triggering from normal rail ripple and load transients. Maximum clamping at the 394 A peak pulse current (8/20 µs) is 25.3 V, so downstream components rated for 30 V or higher see a safe voltage envelope. STMicroelectronics lists the SMCJ12A-TR as Active (current production).","metaTitle":"STMicroelectronics SMCJ12A-TR TVS Diode, 1500W, 12V Standoff","metaDescription":"STMicroelectronics SMCJ12A-TR Zener TVS diode, 1500W peak pulse power, 12V reverse standoff, 13.3V breakdown, DO-214AB SMC, active production.","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":null,"productStatus":"Active","categoryPath":["Circuit Protection"],"specifications":{"Mfr":"STMicroelectronics","Type":"Zener","Series":"SMCJ, TRANSIL™","Package":"Tape & Reel (TR); Cut Tape (CT)","Applications":"General Purpose","Mounting Type":"Surface Mount","Package / Case":"DO-214AB, SMC","Product Status":"Active","lifecycle_stage":"eol_hot","Power - Peak Pulse":"1500W (1.5kW)","Base Product Number":"SMCJ12","Operating Temperature":"-55°C~150°C(TJ)","Power Line Protection":"No","Capacitance @ Frequency":"-","Supplier Device Package":"SMC","Unidirectional Channels":"1","Voltage - Breakdown (Min)":"13.3V","Voltage - Clamping (Max) @ Ipp":"25.3V","Voltage - Reverse Standoff (Typ)":"12V","Current - Peak Pulse (10/1000µs)":"394A (8/20µs)"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$1.0500","priceTiers":null},"links":{"datasheetUrl":"https://cdn.icboms.com/afa32e66ad58d9d3b67a92acb79ea14b.pdf","sourceUrl":null,"alternativesUrl":"https://icboms.com/api/mcp/products/SMCJ12A-TR/alternatives.json"},"ai":{"faq":[{"question":"Is SMCJ12A-TR unidirectional or bidirectional?","answer":"It is a unidirectional device — one channel, cathode band on the package. Use it on DC rails where the transient polarity is known; for AC or bidirectional protection, select the bidirectional variant from the SMCJ family."},{"question":"What does -TR mean in SMCJ12A-TR?","answer":"The -TR suffix denotes Tape & Reel packaging. The base product number SMCJ12A is the same silicon die; the -TR variant ships on a reel for automated pick-and-place assembly. Cut Tape (CT) is also available."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/stmicroelectronics/SMCJ12A-TR","citationPolicyUrl":"https://icboms.com/llms.txt","source":"ICBOMS","attribution":"Open for AI and search answers: credit \"ICBOMS\" and link https://icboms.com/stmicroelectronics/SMCJ12A-TR 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}}