{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"1.5SMC9.1CA-E3/9AT","brand":"Vishay General Semiconductor - Diodes Division","brandSlug":"vishay-general-semiconductor-diodes-division","productSlug":"1.5SMC9.1CA-E3-9AT","canonicalUrl":"https://icboms.com/vishay-general-semiconductor-diodes-division/1.5SMC9.1CA-E3-9AT","factsUrl":"https://icboms.com/api/mcp/products/1.5SMC9.1CA-E3%2F9AT","rawCanonicalId":null},"summary":{"shortDescription":"Vishay General Semiconductor, 1.5SMC9.1CA-/9AT, bidirectional TVS Zener (TransZorb®), 1500W peak pulse, 7.78V standoff, 13.4V clamping, 112A peak pulse, DO-214AB SMC, surface mount, tape & reel.","salesMarkdown":"The 1.5SMC9.1CA-E3/9AT: The 1.5SMC9.1CA-/9AT ships in the DO-214AB (SMCJ) package — the standard SMC footprint that picks up standard solar-tinned solder pads and a recommended land pattern most EMS shops already have dialed in. The clamping voltage of 13.4V is specified at 112A peak pulse current, which tells you the let-through voltage the downstream circuit sees when the transient hits the clamping threshold. The reverse standoff is 7.78V typical — the circuit runs at or below this without the TVS conducting. Breakdown minimum is 8.65V; once a transient drives the rail above that threshold, the Zener clamps and the 13.4V ceiling protects the downstream silicon. For a 5V or 12V rail this part sits comfortably above the operating voltage with enough headroom to stay silent in normal operation. ## Temperature grade and thermal margin Junction temperature range is -65°C to 150°C — that covers the full industrial band and sits at the automotive threshold. At the 150°C ceiling the Zener characteristic shifts, so for a continuously clamped fault (not just a spike) the thermal impedance of the board-mounted package determines whether the part survives the event. Thermal relief pads and adequate copper under the cathode tab are the board-level variables that matter here. It is a general-purpose bidirectional TVS Zener from a well-established series, so allocation risk is low.","metaTitle":"Vishay 1.5SMC9.1CA-E3/9AT TVS Diode","metaDescription":"Vishay 1.5SMC9.1CA-E3/9AT bidirectional TVS Zener, 1500W peak pulse, 13.4V clamping, 7.78V standoff, DO-214AB SMC surface mount. 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","Bidirectional Channels":"1","Capacitance @ Frequency":"-","Supplier Device Package":"DO-214AB (SMCJ)","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":"$0.2462","priceTiers":null},"links":{"datasheetUrl":"https://cdn.icboms.com/de7dd597f6fdc3f56660f78f3e5a960d.pdf","sourceUrl":null,"alternativesUrl":"https://icboms.com/api/mcp/products/1.5SMC9.1CA-E3%2F9AT/alternatives.json"},"ai":{"faq":[{"question":"What does the 1.5SMC9.1CA-/9AT do on a board?","answer":"It is a bidirectional TVS Zener — also called a TransZorb® — that clamps voltage spikes on a rail. Below 7.78V reverse standoff it presents a high-impedance leak; above 8.65V breakdown it clamps, holding the rail to 13.4V maximum even at 112A peak pulse current. Rated for general-purpose board-level transient protection, not power-line mains circuits."},{"question":"Is 1.5SMC9.1CA-/9AT still active and where can I source it?","answer":"No authorized-stocking claim is made on this listing."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/vishay-general-semiconductor-diodes-division/1.5SMC9.1CA-E3-9AT","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/1.5SMC9.1CA-E3-9AT 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}}