{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"1.5SMC51CA-M3/57T","brand":"Vishay General Semiconductor - Diodes Division","brandSlug":"vishay-general-semiconductor-diodes-division","productSlug":"1.5SMC51CA-M3-57T","canonicalUrl":"https://icboms.com/vishay-general-semiconductor-diodes-division/1.5SMC51CA-M3-57T","factsUrl":"https://icboms.com/api/mcp/products/1.5SMC51CA-M3%2F57T","rawCanonicalId":null},"summary":{"shortDescription":"Vishay General Semiconductor - Diodes Division 1.5SMC, TransZorb® series, Zener TVS diode, bidirectional, 1500W peak pulse power, DO-214AB (SMC) package, Tape & Reel.","salesMarkdown":"## 1500 W bidirectional TVS for 43.6 V rails The 1.5SMC51CA-M3/57T: It clamps transients on a 43.6 V nominal rail to 70.1 V maximum, handling 21.4 A of peak pulse current before the junction temperature hits the limit. ## What the clamping voltage means for your protection budget When a surge exceeds the minimum breakdown voltage of 48.5 V, the device avalanches and clamps at 70.1 V maximum across the 21.4 A peak pulse current. The 1500 W rating is derated above 25°C ambient per the datasheet curve; at 125°C the peak pulse power drops to roughly 750 W, so the actual surge-handling margin shrinks in a hot enclosure. It is a standard catalogue part in the 1.5SMC series, which means ongoing factory support and no forced redesign. The cathode band is marked for polarity in the unidirectional variant; this bidirectional version has no polarity, so orientation on the PCB is arbitrary. The 1500 W rating assumes a standard copper-land pattern per Vishay's application note; a smaller pad increases thermal resistance and derates the surge capability.","metaTitle":"1.5SMC51CA-M3/57T Vishay TVS, 1500W Bidirectional, DO-214AB","metaDescription":"Vishay 1.5SMC51CA-M3/57T bidirectional Zener TVS diode, 1500W peak pulse power, 43.6V standoff, DO-214AB. Active production, available 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)","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":"1.5SMC51","Operating Temperature":"-65°C~150°C(TJ)","Power Line Protection":"No","Bidirectional Channels":"1","Capacitance @ Frequency":"-","Supplier Device Package":"DO-214AB (SMCJ)","Voltage - Breakdown (Min)":"48.5V","Voltage - Clamping (Max) @ Ipp":"70.1V","Voltage - Reverse Standoff (Typ)":"43.6V","Current - Peak Pulse (10/1000µs)":"21.4A"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$0.4447","priceTiers":null},"links":{"datasheetUrl":"https://cdn.icboms.com/de7dd597f6fdc3f56660f78f3e5a960d.pdf","sourceUrl":null,"alternativesUrl":"https://icboms.com/api/mcp/products/1.5SMC51CA-M3%2F57T/alternatives.json"},"ai":{"faq":[{"question":"What is the closest pin-compatible alternative to 1.5SMC51CA-M3/57T?","answer":"The 1.5SMC series includes many bidirectional Zener TVS diodes in the same DO-214AB package. The closest parametric match is the 1.5SMC51CA (without the -M3/57T suffix), which shares the same 43.6 V standoff, 48.5 V breakdown, and 70.1 V clamp — the -M3/57T suffix denotes Vishay's Matte Tin plating and tape-and-reel packaging."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/vishay-general-semiconductor-diodes-division/1.5SMC51CA-M3-57T","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/1.5SMC51CA-M3-57T 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}}