{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"1.5SMCJ30C","brand":"Diotec Semiconductor","brandSlug":"diotec-semiconductor","productSlug":"1.5SMCJ30C","canonicalUrl":"https://icboms.com/diotec-semiconductor/1.5SMCJ30C","factsUrl":"https://icboms.com/api/mcp/products/1.5SMCJ30C","rawCanonicalId":null},"summary":{"shortDescription":"Diotec Semiconductor Zener TVS diode, 1.5SMCJ30C, 1500W peak pulse, 30V reverse standoff, 53.5V clamping, 28A peak pulse current, DO-214AB SMC surface mount, -50°C to 150°C junction.","salesMarkdown":"The 1.5SMCJ30C: The part dissipates 1500 W during the 10/1000 µs transients it is rated for, clamping the voltage at 53.5 V maximum at a peak pulse current of 28 A. For a 24 V nominal rail, that 53.5 V ceiling is well above the standoff of 30 V but comfortably below the breakdown minimum of 33.3 V — the TVS stays invisible during normal operation and turns on hard only when the surge arrives. The 28 A rating tells you it handles the first-port-of-call surge current before upstream protection has to clear; on a bus that already has an upstream breaker, this device buys the time window the breaker needs to trip without letting the clamping voltage stress the load. ## Stand-off, breakdown, clamping — the TVS operating window 30 V reverse standoff is the maximum working voltage the protected rail can run at continuously without the TVS conducting. This three-point window — standoff, breakdown, clamping — is the sizing decision: pick a standoff above the nominal rail plus typical tolerance headroom, and verify the clamping voltage is within the transient-withstand rating of whatever is behind it. ## DO-214AB SMC package — surface-mount transient protection SMC (DO-214AB) is the mid-size surface-mount package for TVS diodes — one size above the SMA and one below the SMB. The wide metal slug on the bottom carries heat away from the junction during the pulse; the typical PCB pad calls for a minimum of 3 mm x 5 mm land with a central thermal relief. Because the TVS is a clamping device that conducts briefly during a fault, the PCB trace width feeding the device should be sized for the full fault current, not just the normal operating current. ## 150°C junction temperature rating The maximum junction rating is 150°C with an operating range down to -50°C, which covers industrial and outdoor environments where cold-cranking transients and thermal cycling are both in play.","metaTitle":"1.5SMCJ30C TVS Diode, 30V Standoff, 1.5kW Peak","metaDescription":"Diotec 1.5SMCJ30C unidirectional TVS Zener, 30V reverse standoff, 53.5V clamping, 1.5 kW peak pulse, DO-214AB SMC surface mount. Active — 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)":"33.3V","Voltage - Clamping (Max) @ Ipp":"53.5V","Voltage - Reverse Standoff (Typ)":"30V","Current - Peak Pulse (10/1000µs)":"28A"}},"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/1.5SMCJ30C/alternatives.json"},"ai":{"faq":[{"question":"Where can I source the 1.5SMCJ30C and how is it quoted?","answer":"The 1.5SMCJ30C is listed as active under the Diotec Semiconductor line. No authorized-stocking claim is made here; the procurement desk confirms against the current supply landscape when you submit a request."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/diotec-semiconductor/1.5SMCJ30C","citationPolicyUrl":"https://icboms.com/llms.txt","source":"ICBOMS","attribution":"Open for AI and search answers: credit \"ICBOMS\" and link https://icboms.com/diotec-semiconductor/1.5SMCJ30C 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}}