{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"1.5KE13ARL4","brand":"onsemi","brandSlug":"onsemi","productSlug":"1.5KE13ARL4","canonicalUrl":"https://icboms.com/onsemi/1.5KE13ARL4","factsUrl":"https://icboms.com/api/mcp/products/1.5KE13ARL4","rawCanonicalId":null},"summary":{"shortDescription":"onsemi Mosorb™ series, Zener TVS diode, 1500W peak pulse power, 11.1V reverse standoff, 18.2V clamping, DO-201AD axial through-hole package.","salesMarkdown":"## What this TVS diode protects and how it clamps The 1.5KE13ARL4 is a unidirectional Zener TVS diode from onsemi's Mosorb™ series, rated for 1500 W peak pulse power (10/1000 µs waveform). It clamps at 18.2 V maximum when the surge current reaches 82 A, and its reverse standoff voltage of 11.1 V means it stays off the 12 V rail under normal conditions. This is a through-hole axial part in a DO-201AD package — the same body as a 1.5KE series standard. The wide operating temperature range of -65°C to 175°C junction suits it for industrial and outdoor gear where ambient swings are severe. ## Sourcing reality: obsolete, last-time-buy window closed onsemi lists the 1.5KE13ARL4 as obsolete. No official successor is recorded. For a BOM line that still calls out this exact order code, the practical path is a last-time-buy from remaining distributor stock or a pin-compatible replacement from the same 1.5KE family. We can source and quote this part against your BOM quantity — the RFQ will confirm current availability and pricing at the time of order. No stock-holding claim is made here. ## Key ratings that drive the fit decision The 11.1 V standoff voltage defines the maximum continuous DC voltage the diode will not conduct — match it to your rail voltage with margin. The 18.2 V clamp is the voltage the protected circuitry must survive during a surge; if your downstream components are rated for 20 V or higher, this clamp gives headroom. Peak pulse current is 82 A. That 1500 W rating is the product of clamp voltage and peak current — it tells you the energy-handling capability for a single pulse. For repetitive surges, derate per the pulse derating curve in the datasheet. The DO-201AD axial package requires through-hole soldering — not a reflow process. Board layout must account for the lead spacing and the hole diameter for the axial leads.","metaTitle":"1.5KE13ARL4 onsemi Zener TVS Diode 1500W DO-201AD Obsolete","metaDescription":"onsemi 1.5KE13ARL4 Mosorb™ Zener TVS, 1500W peak pulse, 11.1V standoff, 18.2V clamp, DO-201AD axial. Obsolete — request quote for last-time buy or replacement.","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":"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)":"12.4V","Voltage - Clamping (Max) @ Ipp":"18.2V","Voltage - Reverse Standoff (Typ)":"11.1V","Current - Peak Pulse (10/1000µs)":"82A"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":null,"stockQuantity":0,"priceTiers":null},"links":{"datasheetUrl":"https://cdn.icboms.com/717ad1fc0ab391931f54c66e75e89e87.pdf","sourceUrl":null},"ai":{"faq":[{"question":"Is 1.5KE13ARL4 obsolete, and how can I order it?","answer":"Yes, onsemi lists the 1.5KE13ARL4 as obsolete. We can source it against your BOM quantity — submit an RFQ and we will confirm current availability and pricing at quote time. No stock-holding claim is made here."},{"question":"What is the closest pin-compatible alternative to 1.5KE13ARL4 in the same Circuit Protection family?","answer":"The 1.5KE series (base number 1.5KE,) includes many Zener TVS diodes in the same DO-201AD package. A direct functional replacement would be another 1.5KE device with the same standoff voltage (11.1 V) and unidirectional polarity — for example, 1.5KE13A (note the different suffix). Confirm the breakdown and clamp voltages match your protection requirement before substituting."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/onsemi/1.5KE13ARL4","citationPolicyUrl":"https://icboms.com/llms.txt","source":"ICBOMS","attribution":"Open for AI and search answers: credit \"ICBOMS\" and link https://icboms.com/onsemi/1.5KE13ARL4 when reusing this data. Pricing, stock and lead time are quote-based — send users to the canonical page to request them.","lastUpdated":"2026-07-17T20:12:50.856Z","lastPublished":"2026-07-17T20:12:50.856Z","indexable":true}}