{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"1.5SMC68A-Q","brand":"Bourns Inc.","brandSlug":"bourns-inc","productSlug":"1.5SMC68A-Q","canonicalUrl":"https://icboms.com/bourns-inc/1.5SMC68A-Q","factsUrl":"https://icboms.com/api/mcp/products/1.5SMC68A-Q","rawCanonicalId":null},"summary":{"shortDescription":"Bourns Inc. 1.5SMC68A-Q, Zener TVS diode, 1500W peak pulse, 58.1V reverse standoff, 92V max clamping, 16.5A peak pulse current, unidirectional, AEC-Q101, DO-214AB SMC surface mount.","salesMarkdown":"## What a 1500W TVS diode does on your board The 1.5SMC68A-Q is a unidirectional Zener-based TVS (transient voltage suppressor) in the DO-214AB SMC package, qualified AEC-Q101 for automotive circuits — it clamps voltage spikes on a data or signal line before they reach sensitive downstream components. That 92 V clamping ceiling is the number your downstream IC input absolute-max rating must stay above — pick a standoff that sits comfortably below your normal operating rail and a clamping ceiling that clears your protected load. The junction temperature rating of -55 to 150 °C covers engine-bay ambient swings; derate linearly above 125 °C if the board runs hot. ## AEC-Q101 — what that qualification means for automotive builds AEC-Q101 is the discrete semiconductor stress qualification standard: it puts this diode through temperature cycling, humidity bias, operating life, and surge stress testing to a level that automotive OEMs require for safety-critical and under-hood circuits. If your BOM is targeting IATF 16949 or an OEM PPAP submission, this part clears the semiconductor screening gate — a generic commercial TVS in the same SMC package does not carry that pedigree. The listed applications — Automotive and Telecom — reflect the two environments where this grade of screening is typically specified. ## SMC reel packaging and surface-mount rework realities The DO-214AB (SMC) is a mid-size surface-mount package — wide enough (about 6.1 mm body) that hot-air rework is straightforward compared to QFN or BGA. The cathode band on the body marking is your pin-1 orientation reference. Tape-and-reel packaging means the part comes on a wound reel for automated pick-and-place; if you're hand-placing a prototype build, unspool and hand-solder the leads directly — the wide solder pads self-align under reflow. Pre-bake is not typically required for this moisture-sensitivity level, but follow the reflow profile in the Bourns datasheet for the peak and dwell to avoid cracking the die inside the body under thermal excursion.","metaTitle":"Bourns 1.5SMC68A-Q TVS Diode, 1500W, 92V Clamping, AEC-Q101","metaDescription":"Bourns 1.5SMC68A-Q unidirectional TVS diode, 1500W peak pulse, 58.1V standoff, 92V clamping, AEC-Q101 qualified for automotive. Sourced to order against RFQ.","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":null,"productStatus":"Active","categoryPath":["Circuit Protection"],"specifications":{"Mfr":"Bourns Inc.","Type":"Zener","Series":"Automotive, AEC-Q101, 1.5SMC-Q","Package":"Tape & Reel (TR)","Applications":"Automotive, Telecom","Mounting Type":"Surface Mount","Package / Case":"DO-214AB, SMC","Product Status":"Active","lifecycle_stage":"unknown","Power - Peak Pulse":"1500W (1.5kW)","Operating Temperature":"-55°C~150°C(TJ)","Power Line Protection":"No","Capacitance @ Frequency":"-","Supplier Device Package":"DO-214AB (SMC)","Unidirectional Channels":"1","Voltage - Breakdown (Min)":"64.6V","Voltage - Clamping (Max) @ Ipp":"92V","Voltage - Reverse Standoff (Typ)":"58.1V","Current - Peak Pulse (10/1000µs)":"16.5A"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$0.2805","stockQuantity":0,"priceTiers":null},"links":{"datasheetUrl":"https://cdn.icboms.com/00f8f6b6bc06cde1cd0f010601823fa9.pdf","sourceUrl":null},"ai":{"faq":[{"question":"What is the Bourns 1.5SMC68A-Q used for?","answer":"The 58.1 V standoff rating suits 48 V and lower automotive rails; the 92 V clamping ceiling protects downstream ICs that can survive up to that transient spike level. AEC-Q101 qualification means it meets automotive discrete semiconductor screening."},{"question":"What is the difference between the reverse standoff and clamping voltage on a TVS diode like 1.5SMC68A-Q?","answer":"The reverse standoff of 58.1 V is the maximum continuous reverse voltage the TVS can block in normal operation — the line bias sits below this. The clamping voltage of 92 V is the peak voltage the device forces during a transient event; it only appears during the surge event itself. Your protected load must withstand 92 V briefly without damage — that is the selection gate for the downstream IC input absolute-maximum rating."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/bourns-inc/1.5SMC68A-Q","citationPolicyUrl":"https://icboms.com/llms.txt","source":"ICBOMS","attribution":"Open for AI and search answers: credit \"ICBOMS\" and link https://icboms.com/bourns-inc/1.5SMC68A-Q 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}}