{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"1.5SMBJ45CA","brand":"Bourns Inc.","brandSlug":"bourns-inc","productSlug":"1.5SMBJ45CA","canonicalUrl":"https://icboms.com/bourns-inc/1.5SMBJ45CA","factsUrl":"https://icboms.com/api/mcp/products/1.5SMBJ45CA","rawCanonicalId":null},"summary":{"shortDescription":"Bourns Inc. 1.5SMBJ45CA, Automotive AEC-Q101 TVS Diode, Zener, Bidirectional, 1500W Peak Pulse, 45V Reverse Standoff, DO-214AA SMB, Tape & Reel.","salesMarkdown":"## AEC-Q101 transient suppressor for 45V rails The 1.5SMBJ45CA: It clamps transients on 45V nominal supply lines — the reverse standoff voltage (VRWM) of 45V means the diode stays high-impedance below that level and only conducts during an overvoltage event. That protection window — 45V standoff to 72.7V clamp — is tight enough to shield downstream ICs rated for 80V absolute maximum without nuisance triggering on normal supply ripple. ## Package and temperature envelope The junction temperature range spans -55°C to 150°C, covering the full automotive under-hood band and industrial equipment operating in unventilated enclosures. The single bidirectional channel protects both polarities of an AC signal pair or a bipolar supply rail with one device, saving board space versus two unidirectional diodes in anti-series. Power line protection is not intended — the diode's 1500W rating is sized for transient suppression, not continuous overvoltage clamping.","metaTitle":"Bourns 1.5SMBJ45CA TVS Diode, 1500W, 45V, DO-214AA","metaDescription":"Bourns 1.5SMBJ45CA bidirectional TVS diode, 1500W peak pulse power, 45V reverse standoff, AEC-Q101 qualified, DO-214AA SMB. 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)":"50V","Voltage - Clamping (Max) @ Ipp":"72.7V","Voltage - Reverse Standoff (Typ)":"45V","Current - Peak Pulse (10/1000µs)":"20.6A"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$0.3525","stockQuantity":0,"priceTiers":null},"links":{"datasheetUrl":"https://cdn.icboms.com/ee1fb175d38950cd5a23672129674f6e.pdf","sourceUrl":null},"ai":{"faq":[{"question":"What compliance documentation does Bourns provide for the 1.5SMBJ45CA?","answer":"The 1.5SMBJ45CA is AEC-Q101 qualified for automotive applications. RoHS and REACH compliance documentation is standard from Bourns for this series. No UL or IEC certification is listed in the product record."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/bourns-inc/1.5SMBJ45CA","citationPolicyUrl":"https://icboms.com/llms.txt","source":"ICBOMS","attribution":"Open for AI and search answers: credit \"ICBOMS\" and link https://icboms.com/bourns-inc/1.5SMBJ45CA 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}}