{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"1.5SMCJ70A-AQ","brand":"Diotec Semiconductor","brandSlug":"diotec-semiconductor","productSlug":"1.5SMCJ70A-AQ","canonicalUrl":"https://icboms.com/diotec-semiconductor/1.5SMCJ70A-AQ","factsUrl":"https://icboms.com/api/mcp/products/1.5SMCJ70A-AQ","rawCanonicalId":null},"summary":{"shortDescription":"Diotec Semiconductor Zener TVS diode, 1.5SMCJ70A-AQ, 70V reverse standoff, 77.8V breakdown, 1.5kW peak pulse, 113V clamping, unidirectional, surface mount, DO-214AB SMC, automotive.","salesMarkdown":"## Transient clamping at 113 V protects the 70 V rail The 1.5SMCJ70A-AQ: At 70 V standoff, the protection threshold sits 7.8 V above the rail — a 113 V clamping ceiling gives the downstream automotive ECU 42 V of headroom during a load-dump or inductive kickback event before the protected node sees damaging levels. The single unidirectional channel clamps positive transients to ground; for bidirectional or AC rails a different polarity variant would be required. ## DO-214AB SMC for automotive ECU board assembly The SMC (DO-214AB) package is the automotive-standard footprint for TVS protection on ECU input rails — the flat-body geometry suits reflow profiling and the wide solder pad supports adequate thermal dissipation for a 1.5 kW device. Operating junction temperature extends to 150 °C, which covers engine-bay ambient excursions when the board thermal design keeps the case temperature below the derating curve. Marked for automotive applications per the -AQ suffix convention, though no AEC-Q grade is listed in the available specification data — the buyer should confirm qualification documentation against the specific OEM requirement before releasing to production.","metaTitle":"Diotec 1.5SMCJ70A-AQ TVS Diode, 70V standoff, 1.5kW peak","metaDescription":"Diotec 1.5SMCJ70A-AQ unidirectional Zener TVS, 70V standoff, 77.8V breakdown, 113V clamping, 1.5kW peak pulse. Automotive applications. DO-214AB SMC package.","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":"Automotive","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)":"77.8V","Voltage - Clamping (Max) @ Ipp":"113V","Voltage - Reverse Standoff (Typ)":"70V","Current - Peak Pulse (10/1000µs)":"13.3A"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$0.9260","stockQuantity":0,"priceTiers":null},"links":{"datasheetUrl":"https://cdn.icboms.com/3fb0502b23c3703cafef426b7b2bf7e5.pdf","sourceUrl":null},"ai":{"faq":[{"question":"What is the closest pin-compatible alternative in this TVS series?","answer":"The 1.5SMCJ family shares the DO-214AB SMC footprint across all voltage variants — sourcing a different standoff voltage (such as the 1.5SMCJ75A) requires a board layout check for the protection threshold change but the land pattern is identical. Confirm the breakdown and clamping specs match the protected rail before substituting."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/diotec-semiconductor/1.5SMCJ70A-AQ","citationPolicyUrl":"https://icboms.com/llms.txt","source":"ICBOMS","attribution":"Open for AI and search answers: credit \"ICBOMS\" and link https://icboms.com/diotec-semiconductor/1.5SMCJ70A-AQ 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}}