{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"1.5SMC9.1AHE3/9AT","brand":"Vishay General Semiconductor - Diodes Division","brandSlug":"vishay-general-semiconductor-diodes-division","productSlug":"1.5SMC9.1AHE3-9AT","canonicalUrl":"https://icboms.com/vishay-general-semiconductor-diodes-division/1.5SMC9.1AHE3-9AT","factsUrl":"https://icboms.com/api/mcp/products/1.5SMC9.1AHE3%2F9AT","rawCanonicalId":null},"summary":{"shortDescription":"Vishay General Semiconductor - Diodes Division, Automotive AEC-Q101, 1.5SMC TransZorb® series, unidirectional TVS Zener, 1.5 kW peak pulse, 7.78 V standoff, 13.4 V clamp at 112 A, DO-214AB (SMC), surface-mount, tape-and-reel.","salesMarkdown":"## What the clamping stack means for the protected rail The 1.5SMC9.1AHE3/9AT: The part sits at 7.78 V reverse standoff — the rail it guards sees normal operation uninterrupted below that level. When a transient exceeds the 8.65 V breakdown minimum, the TVS clamps the peak at 13.4 V while conducting 112 A of surge current. For an under-hood ECU that runs at 125 °C ambient with self-heating, the 150 °C rating gives roughly a 25 °C margin — enough to absorb a worst-case surge without the junction hitting its temperature ceiling during the clamping event. ## AEC-Q101 in the 1.5SMC automotive TVS family AEC-Q101 qualification means the die and package passed temperature cycling, surge life, humidity, and ESD screening — this is the stress gate for automotive ECUs where a failed TVS lets a transient reach the ASIC behind it. The TransZorb® branding marks Vishay's internal oxide-passivated Zener process, giving repeatable avalanche characteristics across production lots. ## DO-214AB SMC footprint and reel packaging The DO-214AB (SMC) package is the mid-size SMC footprint — larger than the SMA and SMB, giving better thermal pad area for a 1.5 kW part than a smaller body would allow. Supplied on tape-and-reel, compatible with standard SMT pick-and-place — the Supplier Device Package field lists SMCJ which is the industry standard alias for this foot print. ## Active lifecycle, single-source and sourcing posture Listed as Active.","metaTitle":"Vishay 1.5SMC9.1AHE3/9AT, 1.5 kW TVS Zener, 13.4 V clamp","metaDescription":"Vishay 1.5SMC9.1AHE3/9AT unidirectional TVS Zener, 7.78 V standoff, 13.4 V clamping, 112 A peak pulse. AEC-Q101 qualified, DO-214AB SMC.","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","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 (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":"$0.5900","priceTiers":null},"links":{"datasheetUrl":"https://cdn.icboms.com/de7dd597f6fdc3f56660f78f3e5a960d.pdf","sourceUrl":null,"alternativesUrl":"https://icboms.com/api/mcp/products/1.5SMC9.1AHE3%2F9AT/alternatives.json"},"ai":{"faq":[{"question":"Where can I source 1.5SMC9.1AHE3/9AT and get a quote?","answer":"1.5SMC9.1AHE3/9AT is active and quoted to order through independent distribution against BOM quantities — availability and current lead times are confirmed at RFQ. No stock-holding claim is made; the procurement path is an RFQ with traceability documentation."},{"question":"What voltage family does 1.5SMC9.1AHE3/9AT sit in, and are there alternatives in the 1.5SMC family?","answer":"The base product number is 1.5SMC9.1 — the 9.1 V Zener voltage group. The 1.5SMC family spans a wide standoff voltage range, so same package and power class alternatives exist at adjacent standoff voltages, but a pin-compatible alternative at the exact 7.78 V standoff is confirmed only for this specific order code. Check the 1.5SMC series table for voltage-step alternatives if the application tolerates a different standoff."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/vishay-general-semiconductor-diodes-division/1.5SMC9.1AHE3-9AT","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/1.5SMC9.1AHE3-9AT 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}}