{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"1.5SMCJ18","brand":"Diotec Semiconductor","brandSlug":"diotec-semiconductor","productSlug":"1.5SMCJ18","canonicalUrl":"https://icboms.com/diotec-semiconductor/1.5SMCJ18","factsUrl":"https://icboms.com/api/mcp/products/1.5SMCJ18","rawCanonicalId":null},"summary":{"shortDescription":"Diotec Semiconductor, TVS Zener, order code 1.5SMCJ18, unidirectional single-channel, 18V reverse standoff, 20V breakdown, 32.2V clamping, 1500W peak pulse, -50°C to 150°C junction, DO-214AB surface mount.","salesMarkdown":"## What 18 V standoff means for the board The 1.5SMCJ18 holds 18 V reverse standoff — the maximum rail voltage it will not start conducting above in the reverse direction. ## DO-214AB package and what it changes on the board With a 150 °C maximum junction temperature and a -50 °C floor, the part covers industrial environments where ambient can swing wide — the margin between junction and ambient is set by the PCB pad geometry, not the diode itself. Single unidirectional channel — this part protects a positive-going transient on a single rail; it does not provide bidirectional or AC power-line protection. ## Active sourcing posture Listed as Active by Diotec Semiconductor — quoted to order through independent distribution against your BOM quantity.","metaTitle":"Diotec 1.5SMCJ18 TVS Diode, 18V standoff, DO-214AB","metaDescription":"Diotec 1.5SMCJ18 unidirectional TVS Zener, 1500W peak pulse, 18V standoff/20V breakdown/32.2V clamp, DO-214AB surface mount. Active — quoted to order.","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)":"20V","Voltage - Clamping (Max) @ Ipp":"32.2V","Voltage - Reverse Standoff (Typ)":"18V","Current - Peak Pulse (10/1000µs)":"46.6A"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$0.9158","priceTiers":null},"links":{"datasheetUrl":"https://cdn.icboms.com/3fb0502b23c3703cafef426b7b2bf7e5.pdf","sourceUrl":null,"alternativesUrl":"https://icboms.com/api/mcp/products/1.5SMCJ18/alternatives.json"},"ai":{"faq":[{"question":"What package does the 1.5SMCJ18 use and does it need a specific pad layout?","answer":"It ships in the DO-214AB (SMC) surface-mount package; the supplier device package field lists the same SMC designation, meaning the cathode tab carries the clamping current and the pad design must match the datasheet land pattern for thermal performance."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/diotec-semiconductor/1.5SMCJ18","citationPolicyUrl":"https://icboms.com/llms.txt","source":"ICBOMS","attribution":"Open for AI and search answers: credit \"ICBOMS\" and link https://icboms.com/diotec-semiconductor/1.5SMCJ18 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}}