{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"1.5SMC20CAHM3_A/I","brand":"Vishay General Semiconductor - Diodes Division","brandSlug":"vishay-general-semiconductor-diodes-division","productSlug":"1.5SMC20CAHM3_A-I","canonicalUrl":"https://icboms.com/vishay-general-semiconductor-diodes-division/1.5SMC20CAHM3_A-I","factsUrl":"https://icboms.com/api/mcp/products/1.5SMC20CAHM3_A%2FI","rawCanonicalId":null},"summary":{"shortDescription":"Vishay General Semiconductor - Diodes Division TransZorb® TVS, Automotive AEC-Q101, 1.5SMC20CAHM3_A/I, Bidirectional Zener, 1500W, 17.1V Standoff, 27.7V Clamp, DO-214AB (SMC), Tape & Reel.","salesMarkdown":"## Transient suppressor for 12V/24V automotive buses The 1.5SMC20CAHM3_A/I: With a 17.1 V reverse standoff voltage and a 27.7 V clamping point at 54.2 A peak pulse current, it sits between a nominal 12 V or 24 V supply rail and the downstream silicon — clamping fast transients before they reach the ECU's power-stage FETs or the CAN transceiver. The breakdown voltage min is 19 V, so the diode stays out of conduction during normal battery voltage swings up to 16 V (load-dump excluded) and only starts shunting above that threshold. That margin is what keeps the quiescent leakage in the microamp range during key-off. ## AEC-Q101 qualification and temperature envelope This part carries AEC-Q101 automotive qualification, meaning it has passed the full suite of stress tests — temperature cycling, high-temperature reverse bias, and ESD robustness — that a Tier-1 requires for under-hood or cabin electronics. The 1500 W rating assumes the PCB copper area specified in Vishay's application note; a smaller pad raises the junction temperature for the same pulse. ## Active lifecycle — no last-time-buy pressure Vishay lists the 1.5SMC20CAHM3_A/I as Active. The TransZorb series has a broad installed base in telecom and automotive transient protection. The A/I suffix indicates the automotive-qualified, RoHS-compliant, halogen-free variant in tape-and-reel packaging — the same silicon in the same package as the commercial-grade sibling, but with the AEC-Q101 screening added.","metaTitle":"Vishay 1.5SMC20CAHM3_A/I TVS Diode, 1500W, DO-214AB","metaDescription":"1.5SMC20CAHM3_A/I Vishay TransZorb TVS, 17.1V standoff, 27.7V clamp, 1500W peak pulse, AEC-Q101, DO-214AB. Active production, sourced per 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":"1.5SMC20","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":"$0.4447","stockQuantity":0,"priceTiers":null},"links":{"datasheetUrl":"https://cdn.icboms.com/de7dd597f6fdc3f56660f78f3e5a960d.pdf","sourceUrl":null},"ai":{"faq":[{"question":"What compliance documentation does Vishay provide for 1.5SMC20CAHM3_A/I?","answer":"The A/I suffix indicates RoHS compliance and halogen-free construction. Vishay also provides AEC-Q101 qualification documentation, which includes the PPAP and reliability test report for automotive applications."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/vishay-general-semiconductor-diodes-division/1.5SMC20CAHM3_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/1.5SMC20CAHM3_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}}