{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"1.5SMBJ18CA-H","brand":"Bourns Inc.","brandSlug":"bourns-inc","productSlug":"1.5SMBJ18CA-H","canonicalUrl":"https://icboms.com/bourns-inc/1.5SMBJ18CA-H","factsUrl":"https://icboms.com/api/mcp/products/1.5SMBJ18CA-H","rawCanonicalId":null},"summary":{"shortDescription":"Bourns Inc. 1.5SMBJ18CA-H, Automotive AEC-Q101 TVS Diode, Zener, Bidirectional, 1500W, 18V Standoff, DO-214AA SMB, Tape & Reel.","salesMarkdown":"## Active AEC-Q101 TVS for automotive transient protection The Bourns 1.5SMBJ18CA-H is an active-production bidirectional Zener TVS diode in the 1.5SMBJ series, qualified to AEC-Q101 for automotive-grade reliability. ## Parametric envelope and clamp performance The 18 V reverse standoff voltage (working voltage) means the diode stays transparent on a nominal 12 V or 18 V rail, only clamping when the line exceeds the 20 V minimum breakdown threshold. A single bidirectional channel protects both polarities of a differential signal pair or AC-coupled line without needing two diodes back-to-back. The -55°C to 150°C junction temperature range covers the full automotive under-hood ambient, with derating above 25°C per the standard power-temperature curve. ## Package and board integration Housed in the DO-214AA (SMB) surface-mount package, the 1.5SMBJ18CA-H uses the standard JEDEC footprint for automated pick-and-place and reflow assembly. The SMB body size (approx 4.6 mm x 3.6 mm) fits dense PCB layouts, and the copper pad area under the cathode tab should follow the recommended land pattern to manage thermal impedance during repetitive pulse events. ## Sourcing and compliance posture As an AEC-Q101 qualified device, the part carries automotive-grade documentation including PPAP-level traceability and RoHS/REACH compliance data from Bourns. No power line protection rating (per the spec) confirms this is a signal-line TVS, not intended for AC mains or high-energy industrial power bus clamping.","metaTitle":"Bourns 1.5SMBJ18CA-H TVS Diode, AEC-Q101, 1500W, 18V","metaDescription":"Bourns 1.5SMBJ18CA-H bidirectional Zener TVS, 1500W peak pulse, 18V standoff, AEC-Q101 qualified. Active production. Sourced to order against RFQ.","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)":"20V","Voltage - Clamping (Max) @ Ipp":"29.2V","Voltage - Reverse Standoff (Typ)":"18V","Current - Peak Pulse (10/1000µs)":"51.4A"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$0.2743","priceTiers":null},"links":{"datasheetUrl":"https://cdn.icboms.com/ee1fb175d38950cd5a23672129674f6e.pdf","sourceUrl":null,"alternativesUrl":"https://icboms.com/api/mcp/products/1.5SMBJ18CA-H/alternatives.json"},"ai":{"faq":[{"question":"What compliance documentation does Bourns provide for 1.5SMBJ18CA-H?","answer":"As an AEC-Q101 qualified automotive device, Bourns provides PPAP documentation, RoHS and REACH compliance declarations, and the full datasheet with electrical characteristics and thermal derating curves."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/bourns-inc/1.5SMBJ18CA-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/1.5SMBJ18CA-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}}