{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"1.5SMCJ10","brand":"Diotec Semiconductor","brandSlug":"diotec-semiconductor","productSlug":"1.5SMCJ10","canonicalUrl":"https://icboms.com/diotec-semiconductor/1.5SMCJ10","factsUrl":"https://icboms.com/api/mcp/products/1.5SMCJ10","rawCanonicalId":null},"summary":{"shortDescription":"Diotec Semiconductor 1.5SMCJ10 unidirectional TVS diode, 1500W peak pulse, 10V standoff, 18.8V clamping @ 79.8A, DO-214AB SMC, surface mount, -50°C to 150°C junction.","salesMarkdown":"## Clamping performance at a glance The 1.5SMCJ10: The 1500W peak pulse rating at 10/1000 µs defines what this diode survives — a single transient spike drawn in at the clamping voltage, not a continuous dissipation number. At 79.8A peak pulse current the clamping ceiling sits at 18.8V maximum, which is the figure that protects whatever is behind it from a surge that would otherwise propagate into the load. ## The protection window: standoff versus breakdown The reverse standoff voltage is 10V typical — below this the diode leaks and the protected rail stays clean. The breakdown threshold starts at 11.1V minimum, which means there is roughly a 1.1V margin between nominal standoff and the onset of conduction. That gap is intentional: the TVS does not turn on during normal operation, only during an overvoltage event. The clamping voltage of 18.8V at peak pulse current is the let-through the downstream circuitry must withstand. For a 5V rail protected by this part, the margin between nominal rail and clamping ceiling is the spec that determines whether the downstream IC survives the event. The DO-214AB (SMC) package is the standard JEDEC surface-mount outline for 1500W TVS diodes. The cathode bar is the anode-side connection — the polarity marking on the reel and silkscreen matters at assembly, because a unidirectional TVS wired backwards is a forward-conduction clamp, not a reverse-suppression clamp. The strip packaging format is oriented for pick-and-place; confirm the tape width matches the feeder on high-volume lines. Junction temperature rating is -50°C to 150°C — the upper limit is measured at the junction, not the board ambient, so thermal resistance from junction to leads to board ambient eats into that headroom. On a populated board with limited airflow, model the transient thermal rise before committing to full-load operation in a confined enclosure.","metaTitle":"Diotec 1.5SMCJ10 TVS Diode, 10V Standoff","metaDescription":"1.5kW unidirectional TVS diode, 10V standoff, 18.8V clamping @ 79.8A. DO-214AB SMC surface mount. 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","Capacitance @ Frequency":"-","Supplier Device Package":"SMC/DO-214AB","Unidirectional Channels":"1","Voltage - Breakdown (Min)":"11.1V","Voltage - Clamping (Max) @ Ipp":"18.8V","Voltage - Reverse Standoff (Typ)":"10V","Current - Peak Pulse (10/1000µs)":"79.8A"}},"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/1.5SMCJ10/alternatives.json"},"ai":{"faq":[{"question":"What is the closest pin-compatible alternative to the 1.5SMCJ10 in this TVS family?","answer":"The 1.5SMC series shares the DO-214AB footprint across all voltage variants in the family, so any 1.5SMC part with the same standoff voltage and peak pulse rating is pin-compatible on the same land pattern. Check the parametric table for standoff voltage and clamping figures that match your protection window — the polarity and pinout are identical."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/diotec-semiconductor/1.5SMCJ10","citationPolicyUrl":"https://icboms.com/llms.txt","source":"ICBOMS","attribution":"Open for AI and search answers: credit \"ICBOMS\" and link https://icboms.com/diotec-semiconductor/1.5SMCJ10 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}}