{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"1.5SMCJ30A","brand":"Diotec Semiconductor","brandSlug":"diotec-semiconductor","productSlug":"1.5SMCJ30A","canonicalUrl":"https://icboms.com/diotec-semiconductor/1.5SMCJ30A","factsUrl":"https://icboms.com/api/mcp/products/1.5SMCJ30A","rawCanonicalId":null},"summary":{"shortDescription":"Diotec Semiconductor 1.5SMCJ30A unidirectional TVS Zener, 1500W peak pulse, 30V standoff, 48.4V clamping @ 31A. DO-214AB SMC surface-mount package.","salesMarkdown":"## Peak pulse power and clamping performance The 1.5SMCJ30A absorbs 1500W during a 10/1000 µs transient — the standard IEC 61000-4-5 surge waveform for AC and DC power rails — clamping the overvoltage at 48.4V maximum before the protected load sees it. At that clamping voltage the peak pulse current is 31A, so the clamping knee is the governing spec for downstream MOSFET or regulator gate-survive ratings on a 24V nominal rail. ## Standoff and breakdown — the protection window Reverse standoff of 30V means the TVS idles as an open circuit on a nominal 24V rail with normal headroom to spare — it does not clip the supply under normal conditions. The breakdown threshold sits at 33.3V minimum, so the protection window between standoff and breakdown is tight: the device triggers fast, before the transient propagates to downstream ICs. ## Junction temperature and thermal resilience For a board running near the top end of its ambient range, verify that the transient energy absorption during the worst-case surge does not push Tj past 150°C on your thermal pad.","metaTitle":"Diotec 1.5SMCJ30A TVS Diode, 1500W Peak, 30V","metaDescription":"Diotec 1.5SMCJ30A unidirectional TVS Zener, 1500W peak pulse, 30V standoff, 48.4V clamping. DO-214AB SMC. Active production — quoted to order on RFQ.","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":null,"productStatus":"Active","categoryPath":["Circuit Protection"],"specifications":{"Mfr":"Diotec Semiconductor","Type":"Zener","Series":"-","Package":"Strip","Applications":"General Purpose","Mounting Type":"Surface Mount","Package / Case":"DO-214AB, SMC","Product Status":"Active","lifecycle_stage":"unknown","Power - Peak Pulse":"1500W (1.5kW)","Operating Temperature":"-50°C~150°C(TJ)","Power Line Protection":"No","Capacitance @ Frequency":"-","Supplier Device Package":"SMC/DO-214AB","Unidirectional Channels":"1","Voltage - Breakdown (Min)":"33.3V","Voltage - Clamping (Max) @ Ipp":"48.4V","Voltage - Reverse Standoff (Typ)":"30V","Current - Peak Pulse (10/1000µs)":"31A"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$0.8704","priceTiers":null},"links":{"datasheetUrl":"https://cdn.icboms.com/3fb0502b23c3703cafef426b7b2bf7e5.pdf","sourceUrl":null,"alternativesUrl":"https://icboms.com/api/mcp/products/1.5SMCJ30A/alternatives.json"},"ai":{"faq":[{"question":"What is the 1.5SMCJ30A used for?","answer":"It is a unidirectional TVS Zener in the DO-214AB SMC package, designed to clamp voltage transients on a 30V-class rail in general-purpose protection applications — the sort of rail protection you find on AC/DC power conditioning, telecomdc distribution, and industrial control boards."},{"question":"What package does the 1.5SMCJ30A come in?","answer":"The listed package is Strip — the DO-214AB (SMC) surface-mount outline. The supplier device package field also confirms SMC/DO-214AB."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/diotec-semiconductor/1.5SMCJ30A","citationPolicyUrl":"https://icboms.com/llms.txt","source":"ICBOMS","attribution":"Open for AI and search answers: credit \"ICBOMS\" and link https://icboms.com/diotec-semiconductor/1.5SMCJ30A 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}}