{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"1.5SMBJ12A","brand":"Bourns Inc.","brandSlug":"bourns-inc","productSlug":"1.5SMBJ12A","canonicalUrl":"https://icboms.com/bourns-inc/1.5SMBJ12A","factsUrl":"https://icboms.com/api/mcp/products/1.5SMBJ12A","rawCanonicalId":null},"summary":{"shortDescription":"Bourns Inc. 1.5SMBJ12A Zener TVS Diode, 1500W, 12V Standoff, 19.9V Clamp, 75.4A Ipp, DO-214AA (SMB), AEC-Q101, Tape & Reel.","salesMarkdown":"## 1500W TVS on a 12V rail — AEC-Q101 qualified The 1.5SMBJ12A: It clamps at 19.9V max, handles 75.4A peak pulse current, and is qualified to AEC-Q101 — the automotive discrete stress and reliability standard. That qualification means it passes the full suite of temperature cycling, ESD, and humidity tests required for under-hood or chassis-mounted electronics. ## 12V standoff, 13.3V breakdown — the trigger window Reverse standoff voltage is 12V, so it sits across a 12V rail without conducting in normal operation. Breakdown starts at 13.3V min — the TVS begins shunting current once the transient pushes above that threshold. The clamping voltage of 19.9V max defines the peak voltage the protected circuit sees at full rated current. The DO-214AA (SMB) package is a standard surface-mount footprint — reflow profiles for the SMB body are well documented, and the package supports the 1500W pulse rating without exceeding the junction limit. Bourns lists the 1.5SMBJ12A as Active. For a production BOM that already qualifies this part, the supply risk is low — it remains a standard catalog item in the 1.5SMBJ series.","metaTitle":"Bourns 1.5SMBJ12A TVS Diode, 1500W, DO-214AA (SMB), AEC-Q101","metaDescription":"Bourns 1.5SMBJ12A Zener TVS, 1500W peak pulse power, 12V standoff, 19.9V clamp, 75.4A Ipp. AEC-Q101 qualified. Active production, sourced to order.","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, 1.5SMBJ","Package":"Tape & Reel (TR)","Applications":"General Purpose","Mounting Type":"Surface Mount","Package / Case":"DO-214AA, SMB","Product Status":"Active","lifecycle_stage":"unknown","Power - Peak Pulse":"1500W (1.5kW)","Base Product Number":"1.5SMBJ","Operating Temperature":"-55°C~150°C(TJ)","Power Line Protection":"No","Capacitance @ Frequency":"-","Supplier Device Package":"SMB (DO-214AA)","Unidirectional Channels":"1","Voltage - Breakdown (Min)":"13.3V","Voltage - Clamping (Max) @ Ipp":"19.9V","Voltage - Reverse Standoff (Typ)":"12V","Current - Peak Pulse (10/1000µs)":"75.4A"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$0.2565","priceTiers":null},"links":{"datasheetUrl":"https://cdn.icboms.com/ee1fb175d38950cd5a23672129674f6e.pdf","sourceUrl":null,"alternativesUrl":"https://icboms.com/api/mcp/products/1.5SMBJ12A/alternatives.json"},"ai":{"faq":[{"question":"What is the 1.5SMBJ12A used for?","answer":"It protects a 12V DC rail from transient overvoltage events — load dump, inductive kickback, ESD strikes. The 1500W peak pulse rating covers surges typical in automotive and industrial power buses."},{"question":"Is the 1.5SMBJ12A AEC-Q101 qualified?","answer":"Yes — the series carries the Automotive, AEC-Q101 designation. That means it has passed the AEC-Q101 stress tests (temperature cycling, HTRB, ESD, moisture sensitivity) required for automotive-grade discrete semiconductors."},{"question":"What package does the 1.5SMBJ12A come in?","answer":"DO-214AA (SMB) surface-mount package, supplied on Tape & Reel. The supplier device package is also SMB (DO-214AA)."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/bourns-inc/1.5SMBJ12A","citationPolicyUrl":"https://icboms.com/llms.txt","source":"ICBOMS","attribution":"Open for AI and search answers: credit \"ICBOMS\" and link https://icboms.com/bourns-inc/1.5SMBJ12A 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}}