{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"1.5SMC9.1A-M3/9AT","brand":"Vishay General Semiconductor - Diodes Division","brandSlug":"vishay-general-semiconductor-diodes-division","productSlug":"1.5SMC9.1A-M3-9AT","canonicalUrl":"https://icboms.com/vishay-general-semiconductor-diodes-division/1.5SMC9.1A-M3-9AT","factsUrl":"https://icboms.com/api/mcp/products/1.5SMC9.1A-M3%2F9AT","rawCanonicalId":null},"summary":{"shortDescription":"Vishay General Semiconductor, 1.5SMC series TransZorb® TVS diode, 1.5SMC9.1A-M3/9AT, unidirectional, 7.78V standoff, 8.65V breakdown, 13.4V clamping @ 112A, 1500W peak pulse, DO-214AB SMC surface mount, -65°C to 150°C junction.","salesMarkdown":"## Component selection brief The 1.5SMC9.1A-M3/9AT is a unidirectional TVS (transient voltage suppressor) diode built on the Zener clamping principle — the 1.5SMC family carries the TransZorb® designation, Vishay's legacy name for this Zener-based avalanche architecture. Rated 1500 W peak pulse power at a 10/1000 µs wave shape and 112 A peak pulse current, it clamps inductive transients and ESD events on a single protection channel. ## Standoff, breakdown, and clamping — what the three voltage ratings mean The reverse standoff voltage of 7.78 V is the working rail the diode watches without conduction — the circuit sees the diode as a high-impedance element in normal operation. Those two thresholds define the protection window: 7.78 V normal, 8.65 V turn-on, 13.4 V ceiling under surge. The 1500 W peak pulse rating at 10/1000 µs is a specific surge shape — shorter or faster transients (ESD, 8/20 µs lightning) will produce different peak currents and clamping levels; check the V-I characteristic curve in the Vishay datasheet for those waveforms.","metaTitle":"Vishay 1.5SMC9.1A-M3/9AT TVS Diode, 1500W Peak, DO-214AB","metaDescription":"Vishay 1.5SMC9.1A-M3/9AT unidirectional TVS diode, 7.78V standoff, 8.65V min breakdown, 13.4V clamping, 1500W peak pulse. Active — quoted 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":"1.5SMC9.1","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)":"8.65V","Voltage - Clamping (Max) @ Ipp":"13.4V","Voltage - Reverse Standoff (Typ)":"7.78V","Current - Peak Pulse (10/1000µs)":"112A"}},"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/1.5SMC9.1A-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/1.5SMC9.1A-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/1.5SMC9.1A-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}}