{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"1N6291ARL4","brand":"onsemi","brandSlug":"onsemi","productSlug":"1N6291ARL4","canonicalUrl":"https://icboms.com/onsemi/1N6291ARL4","factsUrl":"https://icboms.com/api/mcp/products/1N6291ARL4","rawCanonicalId":null},"summary":{"shortDescription":"onsemi Mosorb™ series, Zener TVS diode, 1N6291ARL4, 1500W peak pulse power, 58.1V reverse standoff, DO-201AD axial package, through-hole mount.","salesMarkdown":"## 1500W Zener TVS in DO-201AD axial The 1N6291ARL4 is a unidirectional Zener TVS diode from onsemi's Mosorb™ series, rated for 1500W peak pulse power at 1ms. It clamps at 92V max with a 58.1V reverse standoff, making it a fit for 48V-60V rail protection in industrial and telecom gear. ## Obsolete — sourcing through independent channels onsemi lists the 1N6291ARL4 as Obsolete. For BOM lines needing this exact order code, supply is limited to existing distributor and broker inventory — sourced per RFQ against the required quantity. ## Breakdown and clamping for 58V rails Minimum breakdown voltage is 64.6V, clamping at 92V at peak pulse current. The 1500W rating gives a 16A Ipp margin on a 58V nominal rail — enough for secondary surge protection in AC-DC stages or DC bus inputs.","metaTitle":"1N6291ARL4 TVS Diode – onsemi Mosorb™, 1500W, Obsolete","metaDescription":"onsemi 1N6291ARL4 Zener TVS diode, Mosorb™ series, 1500W peak pulse power, 58.1V standoff, DO-201AD axial. Obsolete – 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":"Tape & Reel (TR)","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":"1N6291","Operating Temperature":"-65°C~175°C(TJ)","Power Line Protection":"No","Capacitance @ Frequency":"-","Supplier Device Package":"Axial","Unidirectional Channels":"1","Voltage - Breakdown (Min)":"64.6V","Voltage - Clamping (Max) @ Ipp":"92V","Voltage - Reverse Standoff (Typ)":"58.1V","Current - Peak Pulse (10/1000µs)":"-"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$1.0500","stockQuantity":0,"priceTiers":null},"links":{"datasheetUrl":"https://cdn.icboms.com/1ce676890a04bce4da4e0ab60f37b157.pdf","sourceUrl":null},"ai":{"faq":[{"question":"How can I order 1N6291ARL4 or check stock?","answer":"The 1N6291ARL4 is obsolete per onsemi. We source it through our independent supply network — submit an RFQ with your target quantity for a current availability and price check. No stock-holding claim is made; every quote is order-specific."},{"question":"Is 1N6291ARL4 a Zener diode or a TVS diode?","answer":"It is a Zener-type TVS diode — the Mosorb™ series uses Zener avalanche technology for transient suppression. The listed type is Zener, and it is applied as a unidirectional TVS clamp."},{"question":"What is the difference between 1N6291ARL4 and 1N6291A?","answer":"The 1N6291ARL4 suffix indicates Tape & Reel packaging. The 1N6291A base part shares the same electrical ratings (58.1V standoff, 64.6V breakdown, 92V clamp, 1500W). The only difference is the reel format — the ARL4 variant is supplied on tape for automated insertion."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/onsemi/1N6291ARL4","citationPolicyUrl":"https://icboms.com/llms.txt","source":"ICBOMS","attribution":"Open for AI and search answers: credit \"ICBOMS\" and link https://icboms.com/onsemi/1N6291ARL4 when reusing this data. Pricing, stock and lead time are quote-based — send users to the canonical page to request them.","lastUpdated":"2026-07-17T20:22:06.917Z","lastPublished":"2026-07-17T20:22:06.917Z","indexable":true}}