{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"1.5SMC43A-M3/9AT","brand":"Vishay General Semiconductor - Diodes Division","brandSlug":"vishay-general-semiconductor-diodes-division","productSlug":"1.5SMC43A-M3-9AT","canonicalUrl":"https://icboms.com/vishay-general-semiconductor-diodes-division/1.5SMC43A-M3-9AT","factsUrl":"https://icboms.com/api/mcp/products/1.5SMC43A-M3%2F9AT","rawCanonicalId":null},"summary":{"shortDescription":"Vishay General Semiconductor - Diodes Division, 1.5SMC TransZorb® series, Zener TVS diode, 1500W peak pulse, 36.8V reverse standoff, unidirectional, DO-214AB (SMC) package, Tape & Reel.","salesMarkdown":"## Clamping envelope and transient protection The 1.5SMC43A-M3/9AT: Rated for 1500 W peak pulse power at 10/1000 µs waveform — this is the standard telecom surge shape, so the diode handles the full energy of a lightning-induced transient on a 36.8 V rail without the clamping voltage exceeding 59.3 V. The 25.3 A peak pulse current at the 59.3 V clamp means the diode can absorb a fault current limited only by the source impedance; a lower-impedance rail needs a series resistor or fuse ahead of the TVS to keep the pulse current within the rated envelope. ## Breakdown window and standoff margin Minimum breakdown voltage is 40.9 V, with a reverse standoff of 36.8 V — the rail sits 4.1 V below the avalanche threshold, so a steady-state 36.8 V supply sees no leakage until a transient pushes the diode into breakdown. DO-214AB (SMC) body, also marked as SMCJ — the footprint is the same as the industry-standard SMC package, so a single pad layout covers both the Vishay and competitor parts in this power class. Supplied in Tape & Reel — the carrier tape pitch and reel diameter follow EIA-481, so it feeds through any standard pick-and-place without feeder changeover. General-purpose application rating means no automotive or military screening; for high-reliability programs, confirm the specific Vishay qualification level (AEC-Q101 not listed on this variant).","metaTitle":"Vishay 1.5SMC43A-M3/9AT TVS Diode, 1500W, 36.8V Standoff","metaDescription":"Vishay 1.5SMC43A-M3/9AT Zener TVS, 1500W peak pulse, 36.8V reverse standoff, DO-214AB. Active production, sourced per RFQ.","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":"1.5SMC43","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)":"40.9V","Voltage - Clamping (Max) @ Ipp":"59.3V","Voltage - Reverse Standoff (Typ)":"36.8V","Current - Peak Pulse (10/1000µs)":"25.3A"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$0.3333","priceTiers":null},"links":{"datasheetUrl":"https://cdn.icboms.com/de7dd597f6fdc3f56660f78f3e5a960d.pdf","sourceUrl":null,"alternativesUrl":"https://icboms.com/api/mcp/products/1.5SMC43A-M3%2F9AT/alternatives.json"},"ai":{"faq":[],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/vishay-general-semiconductor-diodes-division/1.5SMC43A-M3-9AT","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/1.5SMC43A-M3-9AT 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}}