{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"1.5SMC56A-M3/9AT","brand":"Vishay General Semiconductor - Diodes Division","brandSlug":"vishay-general-semiconductor-diodes-division","productSlug":"1.5SMC56A-M3-9AT","canonicalUrl":"https://icboms.com/vishay-general-semiconductor-diodes-division/1.5SMC56A-M3-9AT","factsUrl":"https://icboms.com/api/mcp/products/1.5SMC56A-M3%2F9AT","rawCanonicalId":null},"summary":{"shortDescription":"Vishay General Semiconductor - Diodes Division, 1.5SMC series TransZorb®, Zener TVS diode, unidirectional, 1500W peak pulse power, 47.8V standoff, 77V clamping, DO-214AB SMC package, Tape & Reel.","salesMarkdown":"## 1500W Zener TVS — 47.8V standoff, 77V clamp The 1.5SMC56A-M3/9AT: It protects a 47.8V nominal rail — the reverse standoff voltage — by breaking down at 53.2V min and clamping transients to 77V max at the 19.5A peak pulse current. This is a transient suppressor, not a voltage regulator: the Zener breakdown is used for its fast clamping action, not for DC regulation. The 1500W rating means it can absorb a single 10/1000 µs surge of that energy without damage; for shorter pulses the peak power is higher, for longer pulses it derates per the datasheet curve. The package is reflow-solderable and, with care, hand-solderable — the large tab on the cathode side provides a good thermal path to the PCB copper pour, which is essential for dissipating the pulse energy. The wide temperature margin means the clamping voltage and leakage current remain within spec across the full range. The part is supplied on Tape & Reel (TR) for automated pick-and-place assembly.","metaTitle":"Vishay 1.5SMC56A-M3/9AT TVS Diode, 1500W, 47.8V Standoff","metaDescription":"Vishay 1.5SMC56A-M3/9AT unidirectional Zener TVS diode, 1500W peak pulse power, 47.8V standoff, 77V clamping. Active production, DO-214AB SMC package.","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":"1.5SMC56","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)":"53.2V","Voltage - Clamping (Max) @ Ipp":"77V","Voltage - Reverse Standoff (Typ)":"47.8V","Current - Peak Pulse (10/1000µs)":"19.5A"}},"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/1.5SMC56A-M3%2F9AT/alternatives.json"},"ai":{"faq":[{"question":"What is the closest pin-compatible alternative to the 1.5SMC56A-M3/9AT?","answer":"Other 1500W TVS diodes in the DO-214AB package with a 47.8V standoff and similar breakdown range are functionally equivalent, but pinout and footprint compatibility should be verified against the specific alternative's datasheet."},{"question":"What compliance documentation does Vishay provide for the 1.5SMC56A-M3/9AT?","answer":"The evidence does not list specific compliance certifications (RoHS, REACH, UL, IEC) for this part number. Vishay typically provides RoHS and REACH compliance data in the product datasheet; check the manufacturer's documentation for the latest status."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/vishay-general-semiconductor-diodes-division/1.5SMC56A-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/1.5SMC56A-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}}