{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"1.5SMBJ33A-H","brand":"Bourns Inc.","brandSlug":"bourns-inc","productSlug":"1.5SMBJ33A-H","canonicalUrl":"https://icboms.com/bourns-inc/1.5SMBJ33A-H","factsUrl":"https://icboms.com/api/mcp/products/1.5SMBJ33A-H","rawCanonicalId":null},"summary":{"shortDescription":"Bourns Inc. 1.5SMBJ series, Automotive Zener TVS Diode, 1.5SMBJ33A-H, 33V reverse standoff, 53.3V clamp, 1500W peak pulse, AEC-Q101, DO-214AA SMB, Surface Mount.","salesMarkdown":"## Automotive-grade 1500 W TVS in DO-214AA The Bourns 1.5SMBJ33A-H is a Zener unidirectional TVS diode in the 1.5SMBJ series, designed to clamp transients on 33 V nominal rails. The AEC-Q101 qualification is the hard gate for automotive deployment — this part carries the full PPAP documentation an OEM auditor expects for underhood or cabin electronics. The -55°C to 150°C junction temperature range covers the engine-bay thermal profile with margin. ## Clamp voltage and rail protection With a 33 V reverse standoff voltage, the diode does not conduct below the nominal rail, so it adds no leakage on a 24 V or 28 V bus. Breakdown is guaranteed at 36.7 V minimum, and the clamp holds at 53.3 V maximum while shunting 28.2 A peak pulse current. Listed as Active on the manufacturer's lifecycle record. This is a current-production Bourns part with no planned obsolescence notice. The base product number 1.5SMBJ spans a full voltage range, so the 33A variant is a standard catalog item.","metaTitle":"Bourns 1.5SMBJ33A-H TVS Diode, 33V Standoff, AEC-Q101, SMB","metaDescription":"Bourns 1.5SMBJ33A-H automotive Zener TVS, 33V reverse standoff, 53.3V clamp, 1500W peak pulse, AEC-Q101 qualified. 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","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)":"36.7V","Voltage - Clamping (Max) @ Ipp":"53.3V","Voltage - Reverse Standoff (Typ)":"33V","Current - Peak Pulse (10/1000µs)":"28.2A"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$0.6500","stockQuantity":0,"priceTiers":null},"links":{"datasheetUrl":"https://cdn.icboms.com/ee1fb175d38950cd5a23672129674f6e.pdf","sourceUrl":null},"ai":{"faq":[],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/bourns-inc/1.5SMBJ33A-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/1.5SMBJ33A-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}}