{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"1.5SMCJ48A","brand":"Diotec Semiconductor","brandSlug":"diotec-semiconductor","productSlug":"1.5SMCJ48A","canonicalUrl":"https://icboms.com/diotec-semiconductor/1.5SMCJ48A","factsUrl":"https://icboms.com/api/mcp/products/1.5SMCJ48A","rawCanonicalId":null},"summary":{"shortDescription":"Diotec Semiconductor Zener TVS diode, 1.5SMCJ48A, unidirectional 1-channel, 48V standoff, 77.4V clamping @ 19.4A, 1500W peak pulse, -50°C~150°C TJ, DO-214AB SMC surface-mount.","salesMarkdown":"## Clamping and standoff — the two numbers that define a TVS fit The 1.5SMCJ48A: The reverse standoff of 48 V sets the continuous working voltage the diode sees when the line is clean — it must sit above the nominal rail so the device stays off during normal operation. The minimum breakdown of 53.3 V marks where the TVS first begins to conduct in the forward-reversed avalanche region; this 5.3 V margin above standoff is typical for a unidirectional Zener-type clamp. ## Junction temperature range — why the -50°C to 150°C window matters For a TVS in a sealed enclosure, derate the 150°C TJ limit by the thermal resistance from junction to ambient — the datasheet curve will show the usable surge energy at your ambient, but the wide window gives meaningful headroom in both directions versus commercial-grade parts limited to 125°C or 85°C. ## Package and sourcing posture The DO-214AB (SMC) surface-mount body is the standard industry footprint for 1.5–3 kW TVS diodes — the cathode band marks the stripe on the tape orientation. No power-line protection flag is set, confirming this is a general-purpose board-level clamp rather than a certified line-protection module.","metaTitle":"1.5SMCJ48A TVS Diode, 77.4V clamping, 19.4A peak","metaDescription":"Diotec Semiconductor 1.5SMCJ48A unidirectional Zener TVS, 48V standoff, 77.4V clamping max at 19.4A peak pulse, 1500W.","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)":"53.3V","Voltage - Clamping (Max) @ Ipp":"77.4V","Voltage - Reverse Standoff (Typ)":"48V","Current - Peak Pulse (10/1000µs)":"19.4A"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$0.8704","stockQuantity":0,"priceTiers":null},"links":{"datasheetUrl":"https://cdn.icboms.com/3fb0502b23c3703cafef426b7b2bf7e5.pdf","sourceUrl":null},"ai":{"faq":[{"question":"Where can I buy 1.5SMCJ48A and how is it quoted?","answer":"No live inventory claim is made; the Diotec Active status means it carries normal manufacturing lead times rather than a last-time-buy window."},{"question":"What is 1.5SMCJ48A's listed type on this Circuit Protection line?","answer":"The listed type is Zener — a unidirectional Zener-based TVS (Transient Voltage Suppressor) in a single-channel configuration."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/diotec-semiconductor/1.5SMCJ48A","citationPolicyUrl":"https://icboms.com/llms.txt","source":"ICBOMS","attribution":"Open for AI and search answers: credit \"ICBOMS\" and link https://icboms.com/diotec-semiconductor/1.5SMCJ48A 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}}