{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"1.5SMC9.1AHM3/I","brand":"Vishay General Semiconductor - Diodes Division","brandSlug":"vishay-general-semiconductor-diodes-division","productSlug":"1.5SMC9.1AHM3-I","canonicalUrl":"https://icboms.com/vishay-general-semiconductor-diodes-division/1.5SMC9.1AHM3-I","factsUrl":"https://icboms.com/api/mcp/products/1.5SMC9.1AHM3%2FI","rawCanonicalId":null},"summary":{"shortDescription":"Vishay General Semiconductor - Diodes Division 1.5SMC9.1AHM3/I, Automotive AEC-Q101 TransZorb® Zener/TVS diode, 1500W peak pulse, 7.78V standoff, 13.4V clamping @ 112A, DO-214AB (SMC) surface mount, Tape & Reel.","salesMarkdown":"## Clamping ratings and what the 1.5SMC family delivers The 1.5SMC9.1AHM3/I is a unidirectional Zener-type transient voltage suppressor — TransZorb® is Vishay's trade name for the Zener-based TVS architecture that clamps by avalanche breakdown, not by crowbar. The clamping voltage ceiling of 13.4 V means downstream circuits see a hard stop at that level — the tight window between standoff and clamping is the selection parameter that separates this part from lower-clamping or higher-clamping siblings in the same series. Do not extrapolate this directly to a continuous power budget; the pulse rating governs the transient withstand, not the steady-state dissipation. For a line that sees repeated clamping events, the thermal derating curve in the datasheet is the governing document — the junction must stay below 150 °C rated limit. ## Automotive grade and thermal margin Target applications are automotive and telecom — both environments where load-dump transients and ESD events are design-level threats. The DO-214AB (SMC) package is the standard pick-and-place compatible body for this power class; tape-and-reel packaging supports high-volume assembly runs. Surface-mount termination eliminates through-hole clinch steps but means the land pattern and solder-fillet inspection criteria are on you to define per IPC-A-610.","metaTitle":"Vishay 1.5SMC9.1AHM3/I Zener TVS, 7.78V standoff, 1.5kW peak","metaDescription":"AEC-Q101 Zener/TVS, 1.5SMC9.1AHM3/I, 1500W peak pulse, 7.78V standoff, 13.4V clamp @ 112A, -65°C to 150°C, DO-214AB. 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":"Automotive, AEC-Q101, 1.5SMC, TransZorb®","Package":"Tape & Reel (TR)","Applications":"Automotive, Telecom","Mounting Type":"Surface Mount","Package / Case":"DO-214AB, SMC","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 (SMC)","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":null,"priceTiers":null},"links":{"datasheetUrl":"https://cdn.icboms.com/de7dd597f6fdc3f56660f78f3e5a960d.pdf","sourceUrl":null,"alternativesUrl":"https://icboms.com/api/mcp/products/1.5SMC9.1AHM3%2FI/alternatives.json"},"ai":{"faq":[{"question":"What Zener voltage does the 1.5SMC9.1AHM3/I actually clamp at?","answer":"Minimum breakdown is 8.65 V and the maximum clamping voltage at rated peak pulse current (112 A, 10/1000 µs) is 13.4 V — that is the clamping ceiling, not the Zener working voltage. The reverse standoff typ is 7.78 V, which is where the device first begins to conduct."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/vishay-general-semiconductor-diodes-division/1.5SMC9.1AHM3-I","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/1.5SMC9.1AHM3-I when reusing this data. Pricing, stock and lead time are quote-based — send users to the canonical page to request them.","lastUpdated":"2026-09-14T23:42:36.261Z","lastPublished":"2026-09-14T23:42:36.261Z","indexable":true}}