{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"1.5SMCJ18CA-AQ","brand":"Diotec Semiconductor","brandSlug":"diotec-semiconductor","productSlug":"1.5SMCJ18CA-AQ","canonicalUrl":"https://icboms.com/diotec-semiconductor/1.5SMCJ18CA-AQ","factsUrl":"https://icboms.com/api/mcp/products/1.5SMCJ18CA-AQ","rawCanonicalId":null},"summary":{"shortDescription":"Diotec Semiconductor, Zener TVS diode, 1.5SMCJ18CA-AQ, 18V reverse standoff, 1.5 kW peak pulse, 29.2V clamping, DO-214AB SMC surface mount.","salesMarkdown":"The 1.5SMCJ18CA-AQ: The reverse standoff of 18 V defines the normal working rail it sits across; once a transient exceeds the 20 V minimum breakdown, the device clamps the line to a maximum of 29.2 V at the rated 51.4 A peak pulse current, protecting downstream circuitry from a defined overvoltage ceiling rather than letting the spike propagate. ## Junction temperature range and automotive deployment The junction operating range runs from -50°C to 150°C (TJ). For under-hood or exposed-chassis ECU designs, the thermal margin between the actual junction temperature under surge stress and the 150°C absolute limit must be verified against the clamping energy budget — a long-duration low-level surge can heat the junction more insidiously than a single high-amplitude spike. The suffix suggests automotive qualification, consistent with the listed Applications field. Confirm the specific AEC-Q requirement with Diotec if the target program mandates PPAP documentation or temperature grade verification — the ledger does not carry the AEC-Q revision level or PPAP package.","metaTitle":"1.5SMCJ18CA-AQ TVS Diode, 18V Standoff, 29.2V Clamp","metaDescription":"Diotec 1.5SMCJ18CA-AQ unidirectional TVS diode, DO-214AB SMC, 18V standoff, 1.5 kW peak pulse, -50 to 150°C junction. Sourced 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":"Automotive","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)":"20V","Voltage - Clamping (Max) @ Ipp":"29.2V","Voltage - Reverse Standoff (Typ)":"18V","Current - Peak Pulse (10/1000µs)":"51.4A"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$0.9260","priceTiers":null},"links":{"datasheetUrl":"https://cdn.icboms.com/3fb0502b23c3703cafef426b7b2bf7e5.pdf","sourceUrl":null,"alternativesUrl":"https://icboms.com/api/mcp/products/1.5SMCJ18CA-AQ/alternatives.json"},"ai":{"faq":[{"question":"What is 1.5SMCJ18CA-AQ's listed type on this Circuit Protection line?","answer":"It is classified as a Zener TVS diode — a unidirectional transient voltage suppressor that clamps via Zener breakdown. The 18V reverse standoff voltage and 20V minimum breakdown define the normal-working-rail ceiling and the trip threshold respectively."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/diotec-semiconductor/1.5SMCJ18CA-AQ","citationPolicyUrl":"https://icboms.com/llms.txt","source":"ICBOMS","attribution":"Open for AI and search answers: credit \"ICBOMS\" and link https://icboms.com/diotec-semiconductor/1.5SMCJ18CA-AQ 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}}