{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"1.5KE9.1AG","brand":"onsemi","brandSlug":"onsemi","productSlug":"1.5KE9.1AG","canonicalUrl":"https://icboms.com/onsemi/1.5KE9.1AG","factsUrl":"https://icboms.com/api/mcp/products/1.5KE9.1AG","rawCanonicalId":null},"summary":{"shortDescription":"onsemi Mosorb™ series, Zener TVS diode, 1500W peak pulse power, 7.78V reverse standoff, 13.4V clamping, DO-201AD axial lead, through-hole mount.","salesMarkdown":"## Zener TVS in a DO-201AD axial package The 1.5KE9.1AG is a unidirectional Zener TVS diode from onsemi's Mosorb™ series, rated for 1500 W peak pulse power at 10/1000 µs. It clamps transients at 13.4 V maximum while conducting 112 A peak pulse current. The 7.78 V reverse standoff voltage means it sits across a 5 V or 6 V rail without conducting during normal operation, only firing when a surge pushes the line above the 8.65 V minimum breakdown threshold. ## Lifecycle status — obsolete, plan the replacement onsemi has marked the 1.5KE9.1AG as Obsolete. That means no ongoing production, no last-time-buy window — the part is already off the manufacturing line. For a BOM line that still needs this protection level, the practical move is to source existing inventory or evaluate a direct replacement within the 1.5KE family (same package, same 1500 W rating) with a matching breakdown voltage. ## Sourcing reality for an obsolete TVS Because the 1.5KE9.1AG is obsolete, the only supply channel is existing stock — franchised or independent. A cross to a sibling with the same standoff and breakdown voltage is the cleanest path. Sourced per RFQ against your BOM quantity.","metaTitle":"1.5KE9.1AG onsemi Mosorb™ Zener TVS, 1500W, DO-201AD","metaDescription":"onsemi 1.5KE9.1AG Mosorb™ Zener TVS, 1500W peak pulse, 7.78V standoff, 13.4V clamp. Obsolete — check replacement options. Sourced per RFQ.","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":null,"productStatus":"Obsolete","categoryPath":["Circuit Protection"],"specifications":{"Mfr":"onsemi","Type":"Zener","Series":"Mosorb™","Package":"Bulk","Applications":"General Purpose","Mounting Type":"Through Hole","Package / Case":"DO-201AD, Axial","Product Status":"Obsolete","lifecycle_stage":"eol_hot","Power - Peak Pulse":"1500W (1.5kW)","Base Product Number":"1.5KE","Operating Temperature":"-65°C~175°C(TJ)","Power Line Protection":"No","Capacitance @ Frequency":"-","Supplier Device Package":"Axial","Unidirectional Channels":"1","Voltage - Breakdown (Min)":"8.65V","Voltage - Clamping (Max) @ Ipp":"13.4V","Voltage - Reverse Standoff (Typ)":"7.78V","Current - Peak Pulse (10/1000µs)":"112A"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":null,"stockQuantity":0,"priceTiers":null},"links":{"datasheetUrl":"https://cdn.icboms.com/717ad1fc0ab391931f54c66e75e89e87.pdf","sourceUrl":null},"ai":{"faq":[{"question":"Can I use 1.5KE9.1A instead of 1.5KE9.1AG?","answer":"The 1.5KE9.1A is the same die in the same DO-201AD package — the 'G' suffix on the 1.5KE9.1AG typically indicates lead-free / RoHS compliance. If your BOM allows non-G (tin-lead) finish, the 1.5KE9.1A is electrically identical. Confirm the plating requirement with your assembly house."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/onsemi/1.5KE9.1AG","citationPolicyUrl":"https://icboms.com/llms.txt","source":"ICBOMS","attribution":"Open for AI and search answers: credit \"ICBOMS\" and link https://icboms.com/onsemi/1.5KE9.1AG when reusing this data. Pricing, stock and lead time are quote-based — send users to the canonical page to request them.","lastUpdated":"2026-07-17T20:13:23.879Z","lastPublished":"2026-07-17T20:13:23.879Z","indexable":true}}