{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"1N6281ARL4G","brand":"onsemi","brandSlug":"onsemi","productSlug":"1N6281ARL4G","canonicalUrl":"https://icboms.com/onsemi/1N6281ARL4G","factsUrl":"https://icboms.com/api/mcp/products/1N6281ARL4G","rawCanonicalId":null},"summary":{"shortDescription":"onsemi Mosorb™ series, Zener TVS, DO-201AD axial, 1500W peak pulse power, 23.1V reverse standoff, 25.7V breakdown min, 37.5V clamping @ Ipp, single unidirectional channel, -65°C to 175°C junction.","salesMarkdown":"## Mosorb™ Zener TVS – 1500W surge protection in a DO-201AD axial package The 1N6281ARL4G is a unidirectional Zener TVS diode from onsemi's Mosorb™ series, rated for 1500W peak pulse power at 1ms. It clamps transients at 37.5V maximum while standing off 23.1V DC continuously, with a minimum breakdown voltage of 25.7V. The DO-201AD axial package suits through-hole mounting on power rails, industrial control inputs, and telecom line cards where a single device must absorb a high-energy surge without failing short. onsemi lists the 1N6281ARL4G as Obsolete. No official successor part number is published in the available records. For BOM lines that still specify this exact order code, procurement must rely on independent-distributor inventory or broker channels. The 23.1V reverse standoff voltage is the maximum DC or peak AC voltage the TVS can endure without conducting appreciably — your protected rail must stay below this level. The 25.7V minimum breakdown defines where avalanche conduction begins; the 37.5V clamping voltage is the peak voltage the load sees during a 1.5kW surge. The 1500W peak pulse power rating assumes a 1ms exponential waveform; derate for longer pulses per the datasheet curve. ## Temperature range and package considerations Junction temperature range spans -65°C to 175°C, covering military/aerospace ambient extremes. The DO-201AD axial package requires a through-hole solder joint; the lead length and board copper area influence thermal impedance during repetitive surge events.","metaTitle":"1N6281ARL4G onsemi Mosorb™ Zener TVS – Obsolete, 1500W","metaDescription":"onsemi 1N6281ARL4G Mosorb™ Zener TVS, 1500W peak pulse power, 23.1V standoff, DO-201AD axial. Obsolete – sourced per RFQ. Request quote for BOM fill.","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":"1N6281","Operating Temperature":"-65°C~175°C(TJ)","Power Line Protection":"No","Capacitance @ Frequency":"-","Supplier Device Package":"Axial","Unidirectional Channels":"1","Voltage - Breakdown (Min)":"25.7V","Voltage - Clamping (Max) @ Ipp":"37.5V","Voltage - Reverse Standoff (Typ)":"23.1V","Current - Peak Pulse (10/1000µs)":"-"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":null,"stockQuantity":0,"priceTiers":null},"links":{"datasheetUrl":"https://cdn.icboms.com/717ad1fc0ab391931f54c66e75e89e87.pdf","sourceUrl":null},"ai":{"faq":[{"question":"What is the replacement for 1N6281ARL4G?","answer":"No official replacement part number is published in the available records for this obsolete onsemi Mosorb™ Zener TVS. Cross-referencing by voltage (23.1V standoff, 25.7V breakdown min, 37.5V clamping) and package (DO-201AD axial) with a 1500W peak pulse rating may identify a functional equivalent from another manufacturer. We can assist in sourcing alternatives upon request."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/onsemi/1N6281ARL4G","citationPolicyUrl":"https://icboms.com/llms.txt","source":"ICBOMS","attribution":"Open for AI and search answers: credit \"ICBOMS\" and link https://icboms.com/onsemi/1N6281ARL4G when reusing this data. Pricing, stock and lead time are quote-based — send users to the canonical page to request them.","lastUpdated":"2026-07-17T20:21:59.208Z","lastPublished":"2026-07-17T20:21:59.208Z","indexable":true}}