{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"1.5SMC51AHM3_A/I","brand":"Vishay General Semiconductor - Diodes Division","brandSlug":"vishay-general-semiconductor-diodes-division","productSlug":"1.5SMC51AHM3_A-I","canonicalUrl":"https://icboms.com/vishay-general-semiconductor-diodes-division/1.5SMC51AHM3_A-I","factsUrl":"https://icboms.com/api/mcp/products/1.5SMC51AHM3_A%2FI","rawCanonicalId":null},"summary":{"shortDescription":"Vishay General Semiconductor - Diodes Division, Automotive AEC-Q101 1.5SMC TransZorb® series, Zener TVS diode, 1.5SMC51AHM3_A/I, 1500W peak pulse, 43.6V standoff, DO-214AB SMC package, Tape & Reel.","salesMarkdown":"## Active production — AEC-Q101 transient suppressor for 43.6 V rails The 1.5SMC51AHM3_A/I: The single unidirectional channel clamps positive transients referenced to ground; for bidirectional protection on AC-coupled or floating lines, a different variant in the same family is needed. ## Clamping envelope — what the breakdown and clamp voltages mean for rail protection Minimum breakdown voltage is 48.5 V; the device starts to avalanche at this threshold. Maximum clamping voltage at the rated peak pulse current of 21.4 A is 70.1 V — this is the voltage the protected circuitry must survive during a transient event. The margin between the 43.6 V standoff and the 48.5 V breakdown gives headroom for normal rail ripple and regulation tolerance. Power line protection is marked 'No', meaning this is a standalone TVS diode without integrated series elements or foldback — it shunts transient energy to ground via the avalanche junction. ## DO-214AB SMC footprint — surface-mount assembly for automated lines Reflow profile follows standard J-STD-020 for a 260°C peak — no special handling beyond moisture sensitivity level (MSL) per the Vishay label on the reel. Tape & Reel packaging is the standard carrier for pick-and-place assembly. The base product number 1.5SMC51 covers the full voltage variant family; the suffix 'AHM3_A/I' encodes the AEC-Q101 qualification level and the specific testing grade.","metaTitle":"1.5SMC51AHM3_A/I Vishay TVS, 1500W, DO-214AB, AEC-Q101","metaDescription":"Active Vishay 1.5SMC51AHM3_A/I Zener TVS diode, 1500W peak pulse, 43.6V standoff, AEC-Q101 qualified. Sourced to order against 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","Product Status":"Active","lifecycle_stage":"unknown","Power - Peak Pulse":"1500W (1.5kW)","Base Product Number":"1.5SMC51","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)":"48.5V","Voltage - Clamping (Max) @ Ipp":"70.1V","Voltage - Reverse Standoff (Typ)":"43.6V","Current - Peak Pulse (10/1000µs)":"21.4A"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$0.3331","priceTiers":null},"links":{"datasheetUrl":"https://cdn.icboms.com/de7dd597f6fdc3f56660f78f3e5a960d.pdf","sourceUrl":null,"alternativesUrl":"https://icboms.com/api/mcp/products/1.5SMC51AHM3_A%2FI/alternatives.json"},"ai":{"faq":[{"question":"What is the closest pin-compatible alternative to 1.5SMC51AHM3_A/I in this Circuit Protection family?","answer":"The 1.5SMC series includes multiple voltage variants in the same DO-214AB package and AEC-Q101 grade — for example, the 1.5SMC43AHM3_A/I (standoff 43.6 V) or 1.5SMC62AHM3_A/I (standoff 62.2 V). These are pin-compatible but have different clamping thresholds; the correct choice depends on the protected rail voltage. No single direct replacement exists without matching the 48.5 V breakdown and 70.1 V clamp."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/vishay-general-semiconductor-diodes-division/1.5SMC51AHM3_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/1.5SMC51AHM3_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}}