{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"1.5SMBJ58A-H","brand":"Bourns Inc.","brandSlug":"bourns-inc","productSlug":"1.5SMBJ58A-H","canonicalUrl":"https://icboms.com/bourns-inc/1.5SMBJ58A-H","factsUrl":"https://icboms.com/api/mcp/products/1.5SMBJ58A-H","rawCanonicalId":null},"summary":{"shortDescription":"Bourns Inc. 1.5SMBJ series automotive TVS diode, Zener type, 1500W peak pulse power, 58V reverse standoff, unidirectional, DO-214AA (SMB) surface mount package.","salesMarkdown":"## What the 1500W rating means on a 58V rail The 1.5SMBJ58A-H: That 93.6V clamp is the voltage the downstream silicon sees; if your downstream regulator's abs-max is 100V, this part keeps it inside the safe zone. The reverse standoff voltage is 58V, meaning the diode stays transparent on a 48V or 52V bus and only starts conducting when the line exceeds 64.4V (the minimum breakdown voltage). This is a standard selection for 48V automotive or industrial DC rails where the nominal sits well below the clamp threshold. ## Automotive grade and what it certifies The DO-214AA (SMB) package is a standard surface-mount footprint — the same pad layout used across the 1.5SMBJ series. No special thermal vias needed for the 1500W pulse; the copper pad area under the cathode tab sets the thermal impedance for repetitive surges. ## Sourcing and lifecycle reality No pin-compatible second-source is recorded in the Bourns documentation, but the 1.5SMBJ series shares the same DO-214AA footprint across voltage variants — a parametric cross to a different voltage rating would require a BOM change. The base product number 1.5SMBJ covers the full family.","metaTitle":"Bourns 1.5SMBJ58A-H TVS Diode, 1500W, 58V, DO-214AA","metaDescription":"Bourns 1.5SMBJ58A-H automotive TVS diode, 1500W peak pulse power, 58V reverse standoff, AEC-Q101 qualified. Active production, available to order.","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":null,"productStatus":"Active","categoryPath":["Circuit Protection"],"specifications":{"Mfr":"Bourns Inc.","Type":"Zener","Grade":"Automotive","Series":"1.5SMBJ","Package":"Tape & Reel (TR) Cut Tape (CT)","Applications":"General Purpose","Mounting Type":"Surface Mount","Qualification":"AEC-Q101","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)":"64.4V","Voltage - Clamping (Max) @ Ipp":"93.6V","Voltage - Reverse Standoff (Typ)":"58V","Current - Peak Pulse (10/1000µs)":"16.1A"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$0.6500","stockQuantity":0,"priceTiers":null},"links":{"datasheetUrl":"https://cdn.icboms.com/ee1fb175d38950cd5a23672129674f6e.pdf","sourceUrl":null},"ai":{"faq":[{"question":"How do I get current pricing and availability for 1.5SMBJ58A-H?","answer":"Pricing and stock levels are confirmed at quote time against your specific quantity. Submit an RFQ through this listing; availability is checked across authorized and independent sources on each request."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/bourns-inc/1.5SMBJ58A-H","citationPolicyUrl":"https://icboms.com/llms.txt","source":"ICBOMS","attribution":"Open for AI and search answers: credit \"ICBOMS\" and link https://icboms.com/bourns-inc/1.5SMBJ58A-H 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}}