{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"1.5SMBJ51A-H","brand":"Bourns Inc.","brandSlug":"bourns-inc","productSlug":"1.5SMBJ51A-H","canonicalUrl":"https://icboms.com/bourns-inc/1.5SMBJ51A-H","factsUrl":"https://icboms.com/api/mcp/products/1.5SMBJ51A-H","rawCanonicalId":null},"summary":{"shortDescription":"Bourns Inc. 1.5SMBJ series, Zener TVS, Automotive Grade, 1.5SMBJ51A-H, 1.5kW (1500W) peak pulse power, 51V reverse standoff, 56.7V breakdown min, 82.4V clamping, 18.2A peak pulse, DO-214AA (SMB), AEC-Q101, Tape & Reel.","salesMarkdown":"## Automotive-grade qualification and temperature envelope The 1.5SMBJ51A-H: Qualified to AEC-Q101, the automotive discrete semiconductor stress-test standard — this part is screened for reliability under the temperature, humidity, and bias conditions typical of under-hood and cabin electronics. Operating junction temperature range spans -55°C to +150°C, covering the full automotive temperature grade and providing margin for high-ambient environments such as engine bays or transmission control modules. ## Clamping performance and peak pulse current The 82.4 V maximum clamping voltage at 18.2 A peak pulse current (10/1000 µs waveform) defines the voltage a downstream IC sees during a transient — a 51 V rail protected by this TVS will be clamped below 82.4 V, which must stay within the absolute maximum rating of the powered devices. With 1.5 kW peak pulse power handling, this part absorbs high-energy surges such as load-dump or inductive kickback without failing short, provided the energy stays within the device's rated pulse derating curve.","metaTitle":"Bourns 1.5SMBJ51A-H TVS Diode, 51V, 1.5kW, DO-214AA","metaDescription":"Bourns 1.5SMBJ51A-H Zener TVS, 51V reverse standoff, 1.5kW peak pulse, AEC-Q101 automotive grade. Active production, surface-mount DO-214AA. Order via 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)":"56.7V","Voltage - Clamping (Max) @ Ipp":"82.4V","Voltage - Reverse Standoff (Typ)":"51V","Current - Peak Pulse (10/1000µs)":"18.2A"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$0.6500","stockQuantity":0,"priceTiers":null},"links":{"datasheetUrl":"https://cdn.icboms.com/ee1fb175d38950cd5a23672129674f6e.pdf","sourceUrl":null},"ai":{"faq":[{"question":"What is 1.5SMBJ51A-H's listed type and grade?","answer":"The device type is Zener (TVS), and the grade is Automotive, qualified to AEC-Q101."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/bourns-inc/1.5SMBJ51A-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/1.5SMBJ51A-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}}