{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"1.5SMCJ12CA","brand":"Diotec Semiconductor","brandSlug":"diotec-semiconductor","productSlug":"1.5SMCJ12CA","canonicalUrl":"https://icboms.com/diotec-semiconductor/1.5SMCJ12CA","factsUrl":"https://icboms.com/api/mcp/products/1.5SMCJ12CA","rawCanonicalId":null},"summary":{"shortDescription":"Diotec Semiconductor Zener TVS diode, 1.5SMCJ12CA, 1500W peak pulse, 12V reverse standoff, 19.9V clamping, 75.4A peak pulse current, unidirectional, DO-214AB (SMC) surface-mount package.","salesMarkdown":"## What a 1.5 kW unidirectional TVS diode does on a 12 V rail The 1.5SMCJ12CA is a unidirectional Zener-based TVS diode — it sits invisible on a 12 V rail and turns into a low-impedance clamp the instant a transient exceeds the 13.3 V minimum breakdown threshold, shunting the surge energy away from whatever is behind it. The 1500 W peak pulse rating describes the energy it can absorb during a single 10/1000 µs waveform — a 1 ms duration spike, not a sustained overload — so the spec maps directly to the surge immunity class of the downstream load. ## Clamping voltage and the 75.4 A peak pulse rating The 7.9 V difference between the 12 V standoff and the 19.9 V clamping ceiling is the protection margin; a downstream IC with an absolute-maximum input of 20 V is getting close enough that you run the margin calculation before committing the BOM line. ## Thermal and environmental context Surface-mount on a DO-214AB (SMC) footprint — the cathode bar on the package face is the identification for the biased-on direction; the unmarked face is the anode.","metaTitle":"1.5SMCJ12CA TVS Diode, 12V Standoff, 19.9V Clamping, SMC","metaDescription":"Diotec Semiconductor 1.5SMCJ12CA unidirectional TVS diode, 1500W peak pulse, 12V standoff, 19.9V clamping, DO-214AB/SMC surface mount. Active.","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)":"13.3V","Voltage - Clamping (Max) @ Ipp":"19.9V","Voltage - Reverse Standoff (Typ)":"12V","Current - Peak Pulse (10/1000µs)":"75.4A"}},"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/1.5SMCJ12CA/alternatives.json"},"ai":{"faq":[{"question":"What package does the 1.5SMCJ12CA use — will it drop onto a standard SMC footprint?","answer":"The 1.5SMCJ12CA is packaged as a DO-214AB (SMC) in surface-mount orientation — the cathode stripe marks the biased-on direction. This footprint is the industry-standard SMC pad layout, so it is compatible with any SMC pad geometry from competing TVS families on the same BOM line."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/diotec-semiconductor/1.5SMCJ12CA","citationPolicyUrl":"https://icboms.com/llms.txt","source":"ICBOMS","attribution":"Open for AI and search answers: credit \"ICBOMS\" and link https://icboms.com/diotec-semiconductor/1.5SMCJ12CA 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}}