{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"1.5SMC56CAHE3/9AT","brand":"Vishay General Semiconductor - Diodes Division","brandSlug":"vishay-general-semiconductor-diodes-division","productSlug":"1.5SMC56CAHE3-9AT","canonicalUrl":"https://icboms.com/vishay-general-semiconductor-diodes-division/1.5SMC56CAHE3-9AT","factsUrl":"https://icboms.com/api/mcp/products/1.5SMC56CAHE3%2F9AT","rawCanonicalId":null},"summary":{"shortDescription":"Vishay General Semiconductor - Diodes Division, Automotive AEC-Q101 TransZorb® series, 1.5SMC56CAHE3/9AT, Zener TVS diode, bidirectional, 1500W peak pulse power, DO-214AB (SMC) surface mount package.","salesMarkdown":"## Automotive-grade TVS for 48V rail clamping The 1.5SMC56CAHE3/9AT: It clamps a 47.8V nominal rail to 77V maximum, with a breakdown voltage starting at 53.2V. This is the part you reach for when a 48V automotive bus — think mild-hybrid or EV auxiliary supply — needs transient protection that doesn't fail open after one load-dump event. ## AEC-Q101 and the 1500W pulse AEC-Q101 qualification means this diode passed the automotive stress suite: temperature cycling, high-temperature reverse bias, and ESD robustness. The 1500W pulse rating is tested with a 10/1000µs waveform — a standard for automotive transients like ISO 7637-2 pulses. The bidirectional configuration (one channel) clamps both polarities, so you don't need two diodes in anti-series on a symmetrical rail. At 150°C the leakage current rises, but the diode still holds its clamping voltage within spec — the TransZorb® die design handles the thermal stress without secondary breakdown. ## DO-214AB footprint and board integration The supplier device package is listed as DO-214AB (SMCJ), which is the same body size. The cathode band on the package marks the polarity for the unidirectional variant; on this bidirectional part, the band is still present but the device clamps both ways. The pad layout should follow the JEDEC standard for SMC — the copper area under the tab sets the thermal impedance for the 1500W pulse.","metaTitle":"Vishay 1.5SMC56CAHE3/9AT TVS Diode, 1500W, Bidirectional","metaDescription":"Vishay 1.5SMC56CAHE3/9AT bidirectional Zener TVS diode, 1500W peak pulse power, 47.8V standoff, AEC-Q101 qualified. Active production, sourced 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":"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":"1.5SMC56","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)":"53.2V","Voltage - Clamping (Max) @ Ipp":"77V","Voltage - Reverse Standoff (Typ)":"47.8V","Current - Peak Pulse (10/1000µs)":"19.5A"}},"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/1.5SMC56CAHE3%2F9AT/alternatives.json"},"ai":{"faq":[],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/vishay-general-semiconductor-diodes-division/1.5SMC56CAHE3-9AT","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/1.5SMC56CAHE3-9AT 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}}