{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"1.5SMC9.1A-M3/57T","brand":"Vishay General Semiconductor - Diodes Division","brandSlug":"vishay-general-semiconductor-diodes-division","productSlug":"1.5SMC9.1A-M3-57T","canonicalUrl":"https://icboms.com/vishay-general-semiconductor-diodes-division/1.5SMC9.1A-M3-57T","factsUrl":"https://icboms.com/api/mcp/products/1.5SMC9.1A-M3%2F57T","rawCanonicalId":null},"summary":{"shortDescription":"Vishay General Semiconductor - Diodes Division, 1.5SMC Series, TransZorb® TVS diode, 1.5SMC9.1A-M3/57T, 7.78 V standoff, 13.4 V clamping @ 112 A, 1500 W peak pulse, DO-214AB SMC, surface mount, Tape & Reel.","salesMarkdown":"## What 1.5 kW peak-pulse rating means for board-level protection The 1.5SMC9.1A-M3/57T: The 1500 W peak-pulse rating (10/1000 µs waveform) tells you the diode survives a single transient event absorbing up to that energy — the 112 A peak pulse current confirms the clamping current the device can conduct without failing. This is the spec that gates whether the part fits a given input rail's surge budget. Reverse standoff is 7.78 V typ — the circuit sees this voltage undisturbed under normal operation. When a transient exceeds that threshold, the clamping ceiling is 13.4 V max at rated peak pulse current, which caps the overvoltage seen by downstream components. The minimum breakdown of 8.65 V sits between those two, giving roughly 0.87 V of margin above the standoff before conduction begins. DO-214AB (SMC) is a surface-mount package — the cathode bar on the sleeve marks the polarity stripe. The exposed pad on the bottom ties to the board plane for thermal relief; in practice the copper pour under the pad dominates the thermal path since the junction sees up to 150 °C under surge events. ## Where a unidirectional 1.5SMC part lives in a panel The series is classified for general-purpose use — you'll find these on input power rails of industrial control boards, telecom DC feeds, and automotive electronics sub-circuits where a unidirectional clamp suffices (not a bidirectional AC line). Tape & Reel packaging aligns with standard SMC reel quantities. Quoted to order through independent distribution against an RFQ; availability and lead time confirmed at quote time.","metaTitle":"Vishay 1.5SMC9.1A-M3/57T TVS Diode, 1.5kW, 13.4V Clamp","metaDescription":"Vishay 1.5SMC9.1A-M3/57T unidirectional TVS diode, 1.5 kW peak pulse, 7.78 V standoff, 13.4 V clamping. DO-214AB SMC. Active. Sourced to order on RFQ.","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%2F57T/alternatives.json"},"ai":{"faq":[{"question":"What type and series does 1.5SMC9.1A-M3/57T belong to?","answer":"It is a unidirectional Zener-type TVS (TransZorb®) diode in the 1.5SMC series. The reverse standoff sits at 7.78 V with a 13.4 V clamping ceiling."},{"question":"Where can I source 1.5SMC9.1A-M3/57T and request a quote?","answer":"Available through independent distribution on an RFQ basis — availability and current pricing are confirmed when the quote is requested. Tape & Reel is the standard packaging for this DO-214AB SMC device."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/vishay-general-semiconductor-diodes-division/1.5SMC9.1A-M3-57T","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-M3-57T 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}}