{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"1.5SMBJ60A","brand":"Bourns Inc.","brandSlug":"bourns-inc","productSlug":"1.5SMBJ60A","canonicalUrl":"https://icboms.com/bourns-inc/1.5SMBJ60A","factsUrl":"https://icboms.com/api/mcp/products/1.5SMBJ60A","rawCanonicalId":null},"summary":{"shortDescription":"Bourns Inc. 1.5SMBJ series TVS diode, Type Zener, Automotive Grade, 1500W peak pulse power, 60V reverse standoff, 96.8V clamp, DO-214AA SMB package, Tape & Reel.","salesMarkdown":"## Clamp voltage and breakdown — the two numbers that decide fit The 1.5SMBJ60A: When a transient hits, the part breaks down at a minimum of 66.7V and clamps the surge to 96.8V maximum at the rated 15.5A peak pulse current. The margin between the working rail and the breakdown threshold is the design headroom; if the rail sits at 56V nominal, the 4V gap is tight and the TVS may see leakage at temperature extremes. For shorter pulses (8/20µs, common in ESD or lightning), the peak power capability is higher; for longer pulses the derating curve in the datasheet governs the safe operating area. ## Automotive-grade screening — what AEC-Q101 means for the BOM The -55°C to 150°C junction temperature range covers the full automotive under-hood and chassis-mounted envelope — an engine-control unit or transmission controller that sees 125°C ambient still has 25°C of junction margin before the silicon reaches its absolute maximum. The Automotive grade designation is not a separate certification — it is the same AEC-Q101 screening applied to the production lot. For a buyer sourcing this part into a non-automotive BOM (industrial PSU, base-station power, battery charger), the automotive screening is a reliability bonus that costs no extra board space. ## Package and footprint — DO-214AA SMB The DO-214AA (SMB) package is the standard surface-mount footprint for 1.5kW TVS diodes — the same pad layout as the smaller SMA (DO-214AC) parts but with a larger body to dissipate the higher pulse energy. The unidirectional construction means the cathode band marks the ground side; reverse the polarity and the part clamps the negative transient. For AC rails or bidirectional protection, two unidirectional parts back-to-back or a single bidirectional TVS is needed. The reel quantity is set by the Bourns standard pack for the SMB package; confirm the reel count with your assembler before committing the BOM line.","metaTitle":"Bourns 1.5SMBJ60A TVS Diode, 60V Standoff, 1500W, AEC-Q101","metaDescription":"Bourns 1.5SMBJ60A unidirectional TVS diode, 60V reverse standoff, 96.8V clamp, 1500W peak pulse power, DO-214AA SMB. AEC-Q101 automotive grade.","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)","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)":"66.7V","Voltage - Clamping (Max) @ Ipp":"96.8V","Voltage - Reverse Standoff (Typ)":"60V","Current - Peak Pulse (10/1000µs)":"15.5A"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$0.2159","stockQuantity":0,"priceTiers":null},"links":{"datasheetUrl":"https://cdn.icboms.com/ee1fb175d38950cd5a23672129674f6e.pdf","sourceUrl":null},"ai":{"faq":[{"question":"What is the 1.5SMBJ60A's reverse standoff voltage and breakdown voltage?","answer":"The reverse standoff voltage (maximum working voltage without conduction) is 60V. The minimum breakdown voltage at which the TVS starts to conduct is 66.7V. The design must ensure the normal operating rail stays below 60V with margin for ripple and temperature drift."},{"question":"Is the 1.5SMBJ60A AEC-Q101 qualified?","answer":"Yes, the part is AEC-Q101 qualified and carries an Automotive grade designation."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/bourns-inc/1.5SMBJ60A","citationPolicyUrl":"https://icboms.com/llms.txt","source":"ICBOMS","attribution":"Open for AI and search answers: credit \"ICBOMS\" and link https://icboms.com/bourns-inc/1.5SMBJ60A 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}}