{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"1.5KE9.1A","brand":"onsemi","brandSlug":"onsemi","productSlug":"1.5KE9.1A","canonicalUrl":"https://icboms.com/onsemi/1.5KE9.1A","factsUrl":"https://icboms.com/api/mcp/products/1.5KE9.1A","rawCanonicalId":null},"summary":{"shortDescription":"onsemi Mosorb™ series, Zener TVS diode, 1.5KE9.1A, 1500W peak pulse power, 7.78V reverse standoff, 13.4V clamping, DO-201AD axial through-hole, unidirectional, -65°C to 175°C.","salesMarkdown":"## Obsolete – sourcing window for sustainment The 1.5KE9.1A is officially marked Obsolete by onsemi. For a BOM line that depends on this part, the only path is to source existing stock or qualify a form-fit-function replacement. ## 1500W peak pulse – what it means for the rail Rated for 1500 W peak pulse power at 10/1000 µs waveform. That energy rating determines how much transient overvoltage the diode can shunt before failing. For a 7.78 V standoff rail, the 13.4 V clamp limits the voltage seen by downstream components. The 112 A peak pulse current tells you the diode can handle a high-energy surge, but the actual margin depends on the source impedance and the waveform duration. ## DO-201AD axial – through-hole mounting note The DO-201AD axial package is a through-hole form factor. The leads are bent and soldered into plated through-holes; the body is cylindrical. No exposed thermal pad – heat dissipates through the leads and the PCB copper. The -65°C to 175°C junction temperature range covers military and industrial thermal profiles, but the derating curve for peak pulse power above 25°C must be applied. ## Unidirectional – no bidirectional variant in this order code The 1.5KE9.1A is a single unidirectional channel. The 1.5KE series includes bidirectional versions (suffix CA), but this specific order code is unidirectional. If your application requires bidirectional clamping, the 1.5KE9.1CA is the corresponding part.","metaTitle":"1.5KE9.1A onsemi TVS Diode – Obsolete, 1500W, DO-201AD","metaDescription":"onsemi 1.5KE9.1A Mosorb™ Zener TVS, 1500W peak pulse, 7.78V standoff, 13.4V clamp, DO-201AD axial. Obsolete – source via RFQ for last-time or replacement needs.","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":"$0.6700","stockQuantity":0,"priceTiers":null},"links":{"datasheetUrl":"https://cdn.icboms.com/717ad1fc0ab391931f54c66e75e89e87.pdf","sourceUrl":null},"ai":{"faq":[{"question":"How can I order the 1.5KE9.1A or check availability?","answer":"The 1.5KE9.1A is obsolete. We can source remaining inventory from our supply network against your BOM quantity. Submit an RFQ with your target volume and we will confirm availability and current pricing. No stock-holding claim is made here – availability is confirmed per quote."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/onsemi/1.5KE9.1A","citationPolicyUrl":"https://icboms.com/llms.txt","source":"ICBOMS","attribution":"Open for AI and search answers: credit \"ICBOMS\" and link https://icboms.com/onsemi/1.5KE9.1A when reusing this data. Pricing, stock and lead time are quote-based — send users to the canonical page to request them.","lastUpdated":"2026-07-17T20:13:21.465Z","lastPublished":"2026-07-17T20:13:21.465Z","indexable":true}}