{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"1.5KE20ARL4","brand":"onsemi","brandSlug":"onsemi","productSlug":"1.5KE20ARL4","canonicalUrl":"https://icboms.com/onsemi/1.5KE20ARL4","factsUrl":"https://icboms.com/api/mcp/products/1.5KE20ARL4","rawCanonicalId":null},"summary":{"shortDescription":"onsemi Mosorb™ series, Zener TVS diode, 1.5KE20ARL4, 1500W peak pulse power, 17.1V reverse standoff, 27.7V clamping, 54A peak pulse current, DO-201AD axial, -65°C~175°C.","salesMarkdown":"## 1500W Zener TVS in DO-201AD — what the ratings mean for your BOM The 1.5KE20ARL4 is a 1500W peak pulse power Zener TVS diode from onsemi's Mosorb™ series, designed for general-purpose transient voltage suppression in through-hole applications. With a 17.1V reverse standoff voltage and 27.7V maximum clamping at 54A peak pulse current (10/1000µs waveform), it protects 12V and 15V rails from surges up to 1500W. The -65°C to 175°C junction temperature range suits it for harsh environments like industrial power supplies, automotive aftermarket, and telecom line cards where wide thermal margin is required. ## Obsolete status — sourcing reality for the 1.5KE20ARL4 This means no new factory orders are accepted, and remaining stock is the only supply channel. For BOM lines still specifying this exact order code, procurement must source from franchised or independent excess inventory. We can quote against your quantity from available stock; confirm the requirement and we'll check our network. ## Voltage clamping and surge capacity The 19V minimum breakdown voltage ensures the device starts conducting before the protected circuitry sees overvoltage. The 27.7V clamp limits the peak voltage across the load during a surge event. Rated for unidirectional protection only — one channel, cathode band marked. The axial package is a standard through-hole form factor for leaded TVS diodes.","metaTitle":"1.5KE20ARL4 onsemi Mosorb™ Zener TVS 1500W DO-201AD Obsolete","metaDescription":"onsemi 1.5KE20ARL4 Zener TVS diode, 1500W peak pulse power, 17.1V standoff, 27.7V clamping. DO-201AD axial package. Obsolete — sourcing via 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":"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)":"19V","Voltage - Clamping (Max) @ Ipp":"27.7V","Voltage - Reverse Standoff (Typ)":"17.1V","Current - Peak Pulse (10/1000µs)":"54A"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":null,"stockQuantity":0,"priceTiers":null},"links":{"datasheetUrl":"https://cdn.icboms.com/717ad1fc0ab391931f54c66e75e89e87.pdf","sourceUrl":null},"ai":{"faq":[],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/onsemi/1.5KE20ARL4","citationPolicyUrl":"https://icboms.com/llms.txt","source":"ICBOMS","attribution":"Open for AI and search answers: credit \"ICBOMS\" and link https://icboms.com/onsemi/1.5KE20ARL4 when reusing this data. Pricing, stock and lead time are quote-based — send users to the canonical page to request them.","lastUpdated":"2026-07-17T20:12:59.098Z","lastPublished":"2026-07-17T20:12:59.098Z","indexable":true}}