{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"1.5SMCJ14A","brand":"Diotec Semiconductor","brandSlug":"diotec-semiconductor","productSlug":"1.5SMCJ14A","canonicalUrl":"https://icboms.com/diotec-semiconductor/1.5SMCJ14A","factsUrl":"https://icboms.com/api/mcp/products/1.5SMCJ14A","rawCanonicalId":null},"summary":{"shortDescription":"Diotec Semiconductor 1.5SMCJ14A unidirectional Zener TVS diode, 1500W peak pulse, 14V standoff, 15.6V breakdown, 23.2V clamping, 64.7A peak pulse, DO-214AB (SMC) surface-mount.","salesMarkdown":"The 1.5SMCJ14A: At 14 V reverse standoff (typ), the device sits dormant across the supply rail. The clamping voltage of 23.2 V at peak pulse current sets the let-through voltage the protected load must survive — for a 5 V or 12 V rail the 23.2 V ceiling gives comfortable margin; for a 24 V nominal line the 14 V standoff already places this part below the working voltage, so a higher-standoff variant would be the correct choice. ## SMC package and thermal headroom for board-level designs Surface-mount DO-214AB (SMC) is the standard industry footprint for 1500 W TVS diodes — it provides a thermally capable anode-tab land area that the layout engineer must pad correctly to achieve the rated junction-to-ambient thermal performance. The 150 °C maximum junction temperature (TJ) is relatively wide for a TVS diode, giving the designer headroom when the clamping event heats the die. For a board running in a enclosed panel at 85 °C ambient, the junction rise during a brief surge is recoverable — but repeated high-energy transients require checking the diode's average power rating against the thermal impedance of the PCB footprint. The listed package style is Strip — meaning cut-tape or loose parts per bag — not embossed tape on reel. Reel-packaged alternatives in the same series are available; confirm the packaging type before committing to the assembly process, as reel parts suit automated placement whereas strip parts require manual or semi-auto pick-and-place setup. ## What this part is not — power line protection scope The datasheet explicitly flags Power Line Protection as No — this part is not rated for direct 120/230 V mains attachment. It is suited for secondary protection on DC power rails, signal lines, and low-voltage distribution nodes downstream of an upstream bulk clamp or main TVS stage. The single unidirectional channel means it protects one polarity — positive transients on a supply rail. For AC-coupled signal lines or bidirectional clamp needs, a dual-polarity or bipolar TVS would be required; the 1.5SMCJ14A clamps only the forward-bias direction.","metaTitle":"Diotec 1.5SMCJ14A Zener TVS Diode, 1500W Peak Pulse","metaDescription":"Diotec 1.5SMCJ14A unidirectional Zener TVS diode, 14V standoff, 15.6V breakdown, 23.2V clamping, 64.7A peak pulse, SMC/DO-214AB SMD.","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)":"15.6V","Voltage - Clamping (Max) @ Ipp":"23.2V","Voltage - Reverse Standoff (Typ)":"14V","Current - Peak Pulse (10/1000µs)":"64.7A"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$0.9158","stockQuantity":0,"priceTiers":null},"links":{"datasheetUrl":"https://cdn.icboms.com/3fb0502b23c3703cafef426b7b2bf7e5.pdf","sourceUrl":null},"ai":{"faq":[{"question":"How do I order 1.5SMCJ14A and check current pricing?","answer":"The 1.5SMCJ14A is quoted to order against your BOM quantity. As a Diotec active part, it is sourced through authorized distribution channels with full traceability to the manufacturer."},{"question":"What is the closest pin-compatible alternative to the 1.5SMCJ14A?","answer":"No official second-source or pin-compatible successor is listed for this order code."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/diotec-semiconductor/1.5SMCJ14A","citationPolicyUrl":"https://icboms.com/llms.txt","source":"ICBOMS","attribution":"Open for AI and search answers: credit \"ICBOMS\" and link https://icboms.com/diotec-semiconductor/1.5SMCJ14A 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}}