{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"SMBJ12AONT3","brand":"onsemi","brandSlug":"onsemi","productSlug":"SMBJ12AONT3","canonicalUrl":"https://icboms.com/onsemi/SMBJ12AONT3","factsUrl":"https://icboms.com/api/mcp/products/SMBJ12AONT3","rawCanonicalId":null},"summary":{"shortDescription":"onsemi SMBJ series, Type Zener, 600W peak pulse power, 12V reverse standoff, 19.9V clamping, unidirectional, DO-214AA (SMB) surface mount, Tape & Reel","salesMarkdown":"## Protection ratings for a 12V rail The SMBJ12AONT3: This is a 600W peak pulse power TVS diode (10/1000µs waveform) with a 12V reverse standoff voltage — it sits across a 12V rail and stays out of the circuit until a transient exceeds 13.2V breakdown.","metaTitle":"SMBJ12AONT3 onsemi TVS Diode – Obsolete","metaDescription":"SMBJ12AONT3 is an obsolete onsemi 600W unidirectional TVS diode in DO-214AA (SMB). 12V standoff, 19.9V clamp. Replacement options available.","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":null,"productStatus":"Obsolete","categoryPath":["Circuit Protection"],"specifications":{"Mfr":"onsemi","Type":"Zener","Series":"SMBJ","Package":"Tape & Reel (TR)","Applications":"General Purpose","Mounting Type":"Surface Mount","Package / Case":"DO-214AA, SMB","Product Status":"Obsolete","lifecycle_stage":"eol_hot","Power - Peak Pulse":"600W","Base Product Number":"SMBJ","Operating Temperature":"-65°C~150°C(TJ)","Power Line Protection":"No","Capacitance @ Frequency":"-","Supplier Device Package":"SMB","Unidirectional Channels":"1","Voltage - Breakdown (Min)":"13.2V","Voltage - Clamping (Max) @ Ipp":"19.9V","Voltage - Reverse Standoff (Typ)":"12V","Current - Peak Pulse (10/1000µs)":"30.2A (8/20µs)"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$0.2500","priceTiers":null},"links":{"datasheetUrl":null,"sourceUrl":null,"alternativesUrl":"https://icboms.com/api/mcp/products/SMBJ12AONT3/alternatives.json"},"ai":{"faq":[{"question":"Where can I buy SMBJ12AONT3?","answer":"The SMBJ12AONT3 is obsolete, so it is not stocked in volume at franchised distributors. It is available through independent surplus channels — we can source it against your BOM quantity. Submit an RFQ for current availability and pricing."},{"question":"What is the replacement for SMBJ12AONT3?","answer":"There is no official successor listed by onsemi for the SMBJ12AONT3. A functionally equivalent TVS with the same 12V standoff, 600W rating, and DO-214AA package from another manufacturer may fit — confirm the clamp voltage and breakdown tolerance against your design before substituting."},{"question":"Is SMBJ12AONT3 the same as SMBJ12A?","answer":"The SMBJ12A is the base part number for the same 12V TVS in the SMBJ series. The SMBJ12AONT3 suffix indicates a specific packaging option (Tape & Reel). Electrically they are identical — the difference is the reel format for automated assembly."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/onsemi/SMBJ12AONT3","citationPolicyUrl":"https://icboms.com/llms.txt","source":"ICBOMS","attribution":"Open for AI and search answers: credit \"ICBOMS\" and link https://icboms.com/onsemi/SMBJ12AONT3 when reusing this data. Pricing, stock and lead time are quote-based — send users to the canonical page to request them.","lastUpdated":"2026-07-31T14:48:58.556Z","lastPublished":"2026-07-31T14:48:58.556Z","indexable":true}}