{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"1.5SMC18A-E3/57T","brand":"Vishay General Semiconductor - Diodes Division","brandSlug":"vishay-general-semiconductor-diodes-division","productSlug":"1.5SMC18A-E3-57T","canonicalUrl":"https://icboms.com/vishay-general-semiconductor-diodes-division/1.5SMC18A-E3-57T","factsUrl":"https://icboms.com/api/mcp/products/1.5SMC18A-E3%2F57T","rawCanonicalId":null},"summary":{"shortDescription":"Vishay General Semiconductor - Diodes Division, 1.5SMC TransZorb® series, Zener TVS diode, 1.5SMC18A-/57T, 1500W peak pulse, 15.3V reverse standoff, unidirectional, DO-214AB (SMC) surface mount.","salesMarkdown":"## Clamping a 15.3V rail The 1.5SMC18A-E3/57T: When the voltage across it exceeds the 17.1V minimum breakdown threshold, it shunts the surge to ground, holding the clamp at 25.2V maximum while passing up to 59.5A of the 10/1000µs waveform. The 1500W peak pulse rating means it absorbs a single 1ms surge without failing — the sort of hit a 24V industrial supply sees when a motor drive decelerates or a field wiring fault dumps energy back into the bus. ## Package and board-fit Housed in the standard DO-214AB (SMC) package, the same footprint as the SMCJ series. The surface-mount body suits reflow assembly; the wide leads carry the surge current without lifting the pad. Operating temperature spans -65°C to 150°C junction, so it survives the thermal cycling of an outdoor enclosure or an engine bay. The unidirectional polarity means it clamps positive transients only; for bipolar rails you need the bidirectional variant. It remains a standard catalog item in the TransZorb family, so BOM planning doesn't need a substitution roadmap.","metaTitle":"1.5SMC18A-E3/57T Vishay TVS, 1500W, 15.3V standoff","metaDescription":"Vishay 1.5SMC18A-E3/57T Zener TVS diode, 1500W peak pulse, 15.3V reverse standoff, DO-214AB. Active production. Sourced to order.","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":null,"productStatus":"Active","categoryPath":["Circuit Protection"],"specifications":{"Mfr":"Vishay General Semiconductor - Diodes Division","Type":"Zener","Series":"1.5SMC, TransZorb®","Package":"Tape & Reel (TR); Cut Tape (CT)","Applications":"General Purpose","Mounting Type":"Surface Mount","Package / Case":"DO-214AB, SMC","Product Status":"Active","lifecycle_stage":"unknown","Power - Peak Pulse":"1500W (1.5kW)","Base Product Number":"1.5SMC18","Operating Temperature":"-65°C~150°C(TJ)","Power Line Protection":"No","Capacitance @ Frequency":"-","Supplier Device Package":"DO-214AB (SMCJ)","Unidirectional Channels":"1","Voltage - Breakdown (Min)":"17.1V","Voltage - Clamping (Max) @ Ipp":"25.2V","Voltage - Reverse Standoff (Typ)":"15.3V","Current - Peak Pulse (10/1000µs)":"59.5A"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$0.5900","stockQuantity":0,"priceTiers":null},"links":{"datasheetUrl":"https://cdn.icboms.com/de7dd597f6fdc3f56660f78f3e5a960d.pdf","sourceUrl":null},"ai":{"faq":[{"question":"What does the 1500W peak pulse rating mean in practice?","answer":"It absorbs a single 10/1000µs surge up to 59.5A without failing. For a 15.3V rail, that covers most industrial transient events — motor deceleration, inductive kickback, or a nearby lightning strike coupled into the cable."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/vishay-general-semiconductor-diodes-division/1.5SMC18A-E3-57T","citationPolicyUrl":"https://icboms.com/llms.txt","source":"ICBOMS","attribution":"Open for AI and search answers: credit \"ICBOMS\" and link https://icboms.com/vishay-general-semiconductor-diodes-division/1.5SMC18A-E3-57T 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}}