{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"1.5SMC39A-Q","brand":"Bourns Inc.","brandSlug":"bourns-inc","productSlug":"1.5SMC39A-Q","canonicalUrl":"https://icboms.com/bourns-inc/1.5SMC39A-Q","factsUrl":"https://icboms.com/api/mcp/products/1.5SMC39A-Q","rawCanonicalId":null},"summary":{"shortDescription":"Bourns Inc. 1.5SMC-Q series Automotive AEC-Q101 Zener TVS diode, 1.5SMC39A-Q, 1500W peak pulse, 33.3V reverse standoff, 28.2A peak pulse current, DO-214AB (SMC) package, Tape & Reel.","salesMarkdown":"## Clamping voltage and the protection window The 1.5SMC39A-Q: Its 33.3 V reverse standoff voltage defines the maximum continuous DC or peak AC voltage the protected line can carry without the diode conducting — above that, the device breaks down at 37.1 V minimum and clamps the transient to 53.9 V maximum at the rated peak pulse current of 28.2 A. For a 24 V automotive bus that sees load-dump spikes up to 40 V, the 33.3 V standoff provides margin below the clamp threshold while the 1500 W rating absorbs the energy without the diode failing short. ## AEC-Q101 qualification and temperature range The 1.5SMC39A-Q carries AEC-Q101 qualification, meaning it has passed the automotive-grade stress tests for temperature cycling, high-temperature reverse bias, and ESD robustness required for under-hood and chassis-mounted electronics. ## Active production and sourcing Target applications include automotive electronics (ECU, sensor modules, infotainment) and telecom infrastructure where the 33.3 V standoff and 1500 W pulse rating protect against inductive load dumps and lightning-induced surges.","metaTitle":"Bourns 1.5SMC39A-Q TVS Diode, 1500W, 33.3V, DO-214AB","metaDescription":"Bourns 1.5SMC39A-Q Zener TVS diode, 1500W peak pulse, 33.3V standoff, AEC-Q101, DO-214AB. Active production, sourced per 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)":"37.1V","Voltage - Clamping (Max) @ Ipp":"53.9V","Voltage - Reverse Standoff (Typ)":"33.3V","Current - Peak Pulse (10/1000µs)":"28.2A"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$0.2805","priceTiers":null},"links":{"datasheetUrl":"https://cdn.icboms.com/00f8f6b6bc06cde1cd0f010601823fa9.pdf","sourceUrl":null,"alternativesUrl":"https://icboms.com/api/mcp/products/1.5SMC39A-Q/alternatives.json"},"ai":{"faq":[{"question":"What is the closest pin-compatible alternative to 1.5SMC39A-Q in this Circuit Protection family?","answer":"The 1.5SMC-Q series includes multiple voltage variants in the same DO-214AB (SMC) package — for example, the 1.5SMC33A-Q (28.2V standoff) and 1.5SMC43A-Q (36.8V standoff) share the same footprint and power rating. The choice depends on the circuit's reverse standoff voltage requirement."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/bourns-inc/1.5SMC39A-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/1.5SMC39A-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}}