{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"1.5SMC20CAHM3/I","brand":"Vishay General Semiconductor - Diodes Division","brandSlug":"vishay-general-semiconductor-diodes-division","productSlug":"1.5SMC20CAHM3-I","canonicalUrl":"https://icboms.com/vishay-general-semiconductor-diodes-division/1.5SMC20CAHM3-I","factsUrl":"https://icboms.com/api/mcp/products/1.5SMC20CAHM3%2FI","rawCanonicalId":null},"summary":{"shortDescription":"Vishay General Semiconductor, 1.5SMC series TransZorb®, bidirectional TVS diode, 1500W peak pulse, 17.1V standoff, 27.7V clamp, DO-214AB SMC package, AEC-Q101 qualified.","salesMarkdown":"## AEC-Q101 Transient Suppressor for 24V Automotive Rails The 1.5SMC20CAHM3/I: The -65°C to +150°C junction temperature range covers cold-crank and engine-bay thermal extremes without derating the peak pulse power, a requirement for any ECU or BMS that sees both arctic start and summer soak conditions. ## Clamping Voltage and Pulse Current — Sizing the Protection Window At the 17.1 V standoff the diode draws negligible leakage current under normal operation; it only begins conducting when the transient exceeds the 19 V minimum breakdown voltage. The 27.7 V clamping ceiling at 54.2 A peak pulse current defines the voltage stress the protected load sees during a surge — a 24 V nominal bus with a 40 V abs-max input can survive this with margin. The DO-214AB (SMC) package's copper pad area on the PCB sets the thermal resistance to ambient and governs how much average power the part can handle in repetitive surge conditions. ## Active Production — No End-of-Life Risk for Current Designs The 1.5SMC20CAHM3/I shares the same die and package as the non-automotive 1.5SMC20CA, but only the HM3 suffix carries the AEC-Q101 qualification sticker required for automotive PPAP submissions.","metaTitle":"1.5SMC20CAHM3/I Vishay 1500W Bidirectional TVS, DO-214AB","metaDescription":"Vishay 1.5SMC20CAHM3/I 1500W bidirectional TVS diode, AEC-Q101 qualified, 17.1V standoff, 27.7V clamp at 54.2A. Active production, available 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, Telecom","Mounting Type":"Surface Mount","Package / Case":"DO-214AB, SMC","lifecycle_stage":"unknown","Power - Peak Pulse":"1500W (1.5kW)","Base Product Number":"1.5SMC20","Operating Temperature":"-65°C~150°C(TJ)","Power Line Protection":"No","Bidirectional Channels":"1","Capacitance @ Frequency":"-","Supplier Device Package":"DO-214AB (SMC)","Voltage - Breakdown (Min)":"19V","Voltage - Clamping (Max) @ Ipp":"27.7V","Voltage - Reverse Standoff (Typ)":"17.1V","Current - Peak Pulse (10/1000µs)":"54.2A"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":null,"stockQuantity":0,"priceTiers":null},"links":{"datasheetUrl":"https://cdn.icboms.com/de7dd597f6fdc3f56660f78f3e5a960d.pdf","sourceUrl":null},"ai":{"faq":[{"question":"Is the 1.5SMC20CAHM3/I AEC-Q101 qualified?","answer":"Yes, the 1.5SMC20CAHM3/I is AEC-Q101 qualified and belongs to Vishay's Automotive series."},{"question":"What package does the 1.5SMC20CAHM3/I come in?","answer":"It is supplied in a DO-214AB (SMC) surface-mount package, shipped on tape and reel. The supplier device package is also DO-214AB (SMC)."},{"question":"Where can I buy 1.5SMC20CAHM3/I and check availability?","answer":"The 1.5SMC20CAHM3/I is sourced through independent and authorized distribution."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/vishay-general-semiconductor-diodes-division/1.5SMC20CAHM3-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/1.5SMC20CAHM3-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}}