{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"1.5SMBJ28CA","brand":"Bourns Inc.","brandSlug":"bourns-inc","productSlug":"1.5SMBJ28CA","canonicalUrl":"https://icboms.com/bourns-inc/1.5SMBJ28CA","factsUrl":"https://icboms.com/api/mcp/products/1.5SMBJ28CA","rawCanonicalId":null},"summary":{"shortDescription":"Bourns Inc. 1.5SMBJ28CA, Automotive AEC-Q101 Zener TVS Diode, 1500W Peak Pulse Power, 28V Reverse Standoff, Bidirectional, DO-214AA SMB Package, Tape & Reel.","salesMarkdown":"## 1500W peak pulse in a DO-214AA footprint The 1.5SMBJ28CA: The 28V reverse standoff voltage means it sits across a 24V nominal rail without conducting leakage, clamping at 45.4V max when the pulse current hits 33.1A. ## AEC-Q101 grade for under-hood and chassis duty Qualified to AEC-Q101, this part carries the automotive-grade reliability screening — temperature cycling, high-temperature reverse bias, and preconditioning that a commercial-grade TVS does not see. The -55°C to 150°C junction range covers the under-hood ambient where the diode sees conducted transients from the alternator and load-dump events. ## Active production — no last-time-buy pressure Listed as Active by Bourns, so there is no EOL clock ticking on this part number.","metaTitle":"Bourns 1.5SMBJ28CA TVS Diode, 1500W, 28V, DO-214AA","metaDescription":"Bourns 1.5SMBJ28CA bidirectional Zener TVS, 1500W peak pulse power, 28V reverse standoff, 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","Bidirectional Channels":"1","Capacitance @ Frequency":"-","Supplier Device Package":"SMB (DO-214AA)","Voltage - Breakdown (Min)":"31.1V","Voltage - Clamping (Max) @ Ipp":"45.4V","Voltage - Reverse Standoff (Typ)":"28V","Current - Peak Pulse (10/1000µs)":"33.1A"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$0.2580","priceTiers":null},"links":{"datasheetUrl":"https://cdn.icboms.com/ee1fb175d38950cd5a23672129674f6e.pdf","sourceUrl":null,"alternativesUrl":"https://icboms.com/api/mcp/products/1.5SMBJ28CA/alternatives.json"},"ai":{"faq":[{"question":"What does the 28V standoff voltage mean for my 24V rail?","answer":"The 28V reverse standoff is the maximum DC voltage the TVS can block without conducting appreciable leakage. On a nominal 24V rail with a 10% tolerance (26.4V max), the 28V standoff provides margin — the diode stays out of conduction during normal operation and only clamps when the line exceeds 31.1V breakdown."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/bourns-inc/1.5SMBJ28CA","citationPolicyUrl":"https://icboms.com/llms.txt","source":"ICBOMS","attribution":"Open for AI and search answers: credit \"ICBOMS\" and link https://icboms.com/bourns-inc/1.5SMBJ28CA 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}}