{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"1.5SMCJ11CA","brand":"Diotec Semiconductor","brandSlug":"diotec-semiconductor","productSlug":"1.5SMCJ11CA","canonicalUrl":"https://icboms.com/diotec-semiconductor/1.5SMCJ11CA","factsUrl":"https://icboms.com/api/mcp/products/1.5SMCJ11CA","rawCanonicalId":null},"summary":{"shortDescription":"Diotec Semiconductor Zener TVS diode, 1.5SMCJ11CA, DO-214AB (SMC), Surface Mount, 11 V reverse standoff, 12.2 V breakdown min, 18.2 V clamping max, 1500 W peak pulse, -50°C to +150°C junction.","salesMarkdown":"## What the standoff–breakdown–clamp triplet means for the circuit The 1.5SMCJ11CA is a unidirectional Zener-based TVS in the DO-214AB (SMC) package, specified with a reverse standoff of 11 V — the working rail the diode sits across without conducting in normal operation. That 18.2 V clamp ceiling is the number the downstream circuits see during the event, so the protected rail must tolerate a worst-case 18.2 V — the 11 V nominal never reaches the load in normal operation. The 1.5 kW peak pulse rating is a single-event capability for the 10/1000 µs surge shape — a longer-tailed or higher-energy surge profile derates differently, and the datasheet clamping curve determines whether the device survives a given threat level. For a continuous or repetitive transients, the thermal junction limit of +150 °C is the governing constraint, not the peak pulse number. ## Why a Zener-type TVS in SMC works for general-purpose protection Zener TVS devices clamp through avalanche breakdown — the clamping voltage rises with current, so the 18.2 V spec is the ceiling at 82.4 A. For a general-purpose board-level protection need, the 11 V standoff makes this a fit for 12 V nominal rails, with adequate headroom for the 10% tolerance band on standard 12 V supplies. The DO-214AB package is the standard SMC foot print, compatible with standard reflow profiles and widely available in tape-and-reel. The single bidirectional channel means this part protects one polarity — a positive-going transient relative to ground. For circuits that need dual-polarity clamping, two of these in inverse series would be required; a single unit does not protect against negative-going spikes. ## Active production — sourcing and cross-reference check As an active part with a standard SMC footprint and widely cloned 1.5SMCJ series footprint, second-source candidates exist from multiple manufacturers in the independent distribution market — the standoff voltage, clamping voltage, and peak pulse rating should be confirmed against each candidate's datasheet before swapping, as minimum breakdown and clamping characteristics can vary slightly across brands.","metaTitle":"Diotec 1.5SMCJ11CA TVS Diode, 11V standoff, 1.5 kW peak","metaDescription":"Diotec 1.5SMCJ11CA Zener TVS in DO-214AB (SMC). 11 V standoff, 18.2 V clamping, 1500 W peak pulse. Active production — 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","Bidirectional Channels":"1","Capacitance @ Frequency":"-","Supplier Device Package":"SMC/DO-214AB","Voltage - Breakdown (Min)":"12.2V","Voltage - Clamping (Max) @ Ipp":"18.2V","Voltage - Reverse Standoff (Typ)":"11V","Current - Peak Pulse (10/1000µs)":"82.4A"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$0.8068","priceTiers":null},"links":{"datasheetUrl":"https://cdn.icboms.com/3fb0502b23c3703cafef426b7b2bf7e5.pdf","sourceUrl":null,"alternativesUrl":"https://icboms.com/api/mcp/products/1.5SMCJ11CA/alternatives.json"},"ai":{"faq":[{"question":"What package does 1.5SMCJ11CA use and does it match a standard SMC footprint?","answer":"The device ships in the DO-214AB (SMC) package, a widely supported surface-mount footprint with standard pad geometry — no custom pad design is required for board integration."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/diotec-semiconductor/1.5SMCJ11CA","citationPolicyUrl":"https://icboms.com/llms.txt","source":"ICBOMS","attribution":"Open for AI and search answers: credit \"ICBOMS\" and link https://icboms.com/diotec-semiconductor/1.5SMCJ11CA 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}}