{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"1.5SMC440AHM3_A/I","brand":"Vishay General Semiconductor - Diodes Division","brandSlug":"vishay-general-semiconductor-diodes-division","productSlug":"1.5SMC440AHM3_A-I","canonicalUrl":"https://icboms.com/vishay-general-semiconductor-diodes-division/1.5SMC440AHM3_A-I","factsUrl":"https://icboms.com/api/mcp/products/1.5SMC440AHM3_A%2FI","rawCanonicalId":null},"summary":{"shortDescription":"Vishay General Semiconductor - Diodes Division, Automotive AEC-Q101, 1.5SMC TransZorb® series, Zener TVS diode, 1500W peak pulse, 376V standoff, 602V clamp, DO-214AB SMC package.","salesMarkdown":"The 1.5SMC440AHM3_A/I: This Zener TVS clamps a 376V nominal rail at 602V during a 10/1000µs surge, absorbing 1500W of peak pulse power — enough to shunt an automotive load-dump or telecom lightning transient without the part failing short. Breakdown occurs at 418V minimum, giving a 42V margin above the 376V standoff before the diode starts conducting leakage — this window keeps the rail clean under normal operation while triggering fast when the surge arrives. ## Automotive-grade qualification and temperature range AEC-Q101 qualification means this TVS is screened for automotive reliability — it passes the temperature cycling, high-temperature reverse bias, and ESD stress tests required for under-hood or cabin electronics. ## DO-214AB SMC package and board-fit notes Surface-mount DO-214AB (SMC) package — the same footprint as standard SMC diodes. The copper pad area under the cathode tab sets the thermal resistance; a 1 oz copper pad of at least 30 mm² keeps the junction temperature rise within the derating curve. Tape-and-reel packaging (TR) suits high-volume pick-and-place; the MSL rating is typically Level 1 for these molded packages, so no pre-bake is required before reflow if the shelf life is current. Unidirectional, single-channel — cathode band marks the polarity. The 418V breakdown voltage is tested at 1 mA; the actual clamping voltage at the 2.5A pulse is 602V max, so the PCB layout should keep the trace inductance low to avoid overshoot above the clamp.","metaTitle":"1.5SMC440AHM3_A/I Vishay TVS, 1500W, 376V Standoff, DO-214AB","metaDescription":"Vishay 1.5SMC440AHM3_A/I Zener TVS diode, 1500W peak pulse, 376V standoff, 602V clamp. AEC-Q101 qualified for automotive. Active, order to 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":"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":"1.5SMC440","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)":"418V","Voltage - Clamping (Max) @ Ipp":"602V","Voltage - Reverse Standoff (Typ)":"376V","Current - Peak Pulse (10/1000µs)":"2.5A"}},"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/1.5SMC440AHM3_A%2FI/alternatives.json"},"ai":{"faq":[{"question":"What compliance documentation does Vishay provide for this part?","answer":"The series is AEC-Q101 qualified for automotive applications. The part is RoHS-compliant and halogen-free per the TransZorb series specifications. Full documentation including the datasheet, qualification test reports, and PCAP (Production Part Approval Process) data is available from Vishay upon request."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/vishay-general-semiconductor-diodes-division/1.5SMC440AHM3_A-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/1.5SMC440AHM3_A-I 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}}