{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"1.5SMC150CAHM3/H","brand":"Vishay General Semiconductor - Diodes Division","brandSlug":"vishay-general-semiconductor-diodes-division","productSlug":"1.5SMC150CAHM3-H","canonicalUrl":"https://icboms.com/vishay-general-semiconductor-diodes-division/1.5SMC150CAHM3-H","factsUrl":"https://icboms.com/api/mcp/products/1.5SMC150CAHM3%2FH","rawCanonicalId":null},"summary":{"shortDescription":"Vishay General Semiconductor - Diodes Division, Automotive AEC-Q101, 1.5SMC TransZorb® Series, Bidirectional TVS Diode, 1.5SMC150CAHM3/H, 1500W Peak Pulse, 128V Standoff, DO-214AB SMC Package.","salesMarkdown":"## Automotive-grade transient protection for 128V rails The 1.5SMC150CAHM3/H: The 128V reverse standoff voltage means the protected rail can carry up to that level continuously without the diode conducting leakage. Breakdown starts at 143V minimum, giving a 15V margin before clamping engages — typical for 120V nominal automotive or telecom buses that see transients well above the DC level. ## DO-214AB SMC footprint and thermal path Housed in the standard DO-214AB (SMC) surface-mount package, the same footprint used across the 1.5SMC family. The large copper tab on the bottom side conducts heat into the PCB pad — for sustained repetitive surges, the board copper area under the package sets the effective thermal resistance, not the junction-to-case spec alone. Operating temperature spans -65°C to 150°C junction, covering under-hood automotive ambient and telecom outdoor enclosures without derating concerns at the high end. ## Where it fits in the protection scheme The bidirectional channel protects against both positive and negative transients from a single device — useful on AC-coupled signal lines, bipolar power buses, or data lines where the common-mode voltage can swing either direction. No power line protection rating means it is intended for signal or secondary-side DC rails, not mains AC input stages.","metaTitle":"1.5SMC150CAHM3/H Vishay TVS, 1500W Bidirectional, DO-214AB","metaDescription":"Vishay 1.5SMC150CAHM3/H bidirectional TVS diode, 1500W peak pulse, 128V standoff, AEC-Q101. 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","lifecycle_stage":"unknown","Power - Peak Pulse":"1500W (1.5kW)","Base Product Number":"1.5SMC150","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)":"143V","Voltage - Clamping (Max) @ Ipp":"207V","Voltage - Reverse Standoff (Typ)":"128V","Current - Peak Pulse (10/1000µs)":"7.2A"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":null,"stockQuantity":0,"priceTiers":null},"links":{"datasheetUrl":"https://cdn.icboms.com/de7dd597f6fdc3f56660f78f3e5a960d.pdf","sourceUrl":null},"ai":{"faq":[{"question":"What is the closest pin-compatible alternative to 1.5SMC150CAHM3/H?","answer":"The base product number 1.5SMC150 covers the same die and package across the 1.5SMC family. Other variants in the same DO-214AB footprint with the same 1500W rating and 128V standoff are functionally interchangeable, though the AEC-Q101 qualification and specific suffix (HM3/H) are unique to this automotive-grade version."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/vishay-general-semiconductor-diodes-division/1.5SMC150CAHM3-H","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/1.5SMC150CAHM3-H 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}}