{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"1.5SMCJ40C","brand":"Diotec Semiconductor","brandSlug":"diotec-semiconductor","productSlug":"1.5SMCJ40C","canonicalUrl":"https://icboms.com/diotec-semiconductor/1.5SMCJ40C","factsUrl":"https://icboms.com/api/mcp/products/1.5SMCJ40C","rawCanonicalId":null},"summary":{"shortDescription":"Diotec Semiconductor TVS (Transient Voltage Suppressor) diode, 1.5SMCJ40C, unidirectional, 1500 W peak pulse, 40 V standoff, 71.4 V clamping, DO-214AB (SMC) surface-mount package, -50°C to 150°C junction.","salesMarkdown":"The 1.5SMCJ40C clamps at 71.4 V maximum under a 21 A peak pulse (10/1000 µs waveform) — that 1.5 kW rating is the absorbed transient energy the diode can dissipate in a single surge event without degradation, making it the primary figure for specifying protection margin on a 24 V industrial rail. The reverse standoff of 40 V sits below the 44.4 V minimum breakdown, leaving comfortable headroom for a 24 V nominal rail — the device stays off during normal operation and transitions to clamp only when a transient exceeds the breakdown threshold. Rated for junction operation from -50°C to 150°C, the part covers the full industrial temperature band — the upper limit applies to the chip itself under transient thermal conditions, not the ambient around the board. ## DO-214AB package and board-level fit The SMC (DO-214AB) package mounts surface-mount on the PCB — the cathode band marking identifies polarity orientation on the unidirectional device, which matters during reflow profile setup and for any hand-solder touch-up in production. Strip packaging is standard for this SMC variant — confirm the reel quantity and lead-free solderability status against your assembly line's reflow profile, particularly for the 150°C maximum junction rating under surge thermal stress.","metaTitle":"Diotec 1.5SMCJ40C TVS Diode, 1.5 kW, 40V standoff, DO-214AB","metaDescription":"Diotec 1.5SMCJ40C unidirectional TVS diode, 1500 W peak pulse, 40 V standoff, 44.4 V breakdown, 71.4 V clamping. Active production, quoted to order on RFQ.","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)":"44.4V","Voltage - Clamping (Max) @ Ipp":"71.4V","Voltage - Reverse Standoff (Typ)":"40V","Current - Peak Pulse (10/1000µs)":"21A"}},"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/1.5SMCJ40C/alternatives.json"},"ai":{"faq":[],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/diotec-semiconductor/1.5SMCJ40C","citationPolicyUrl":"https://icboms.com/llms.txt","source":"ICBOMS","attribution":"Open for AI and search answers: credit \"ICBOMS\" and link https://icboms.com/diotec-semiconductor/1.5SMCJ40C 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}}