{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"1N6289ARL4","brand":"onsemi","brandSlug":"onsemi","productSlug":"1N6289ARL4","canonicalUrl":"https://icboms.com/onsemi/1N6289ARL4","factsUrl":"https://icboms.com/api/mcp/products/1N6289ARL4","rawCanonicalId":null},"summary":{"shortDescription":"onsemi Mosorb™ series, Zener TVS diode, 1N6289ARL4, 1500 W peak pulse power, 53.2 V breakdown min, DO-201AD axial through-hole package.","salesMarkdown":"## Zener TVS — 1500 W surge clamp in an axial lead The 1N6289ARL4 is an onsemi Mosorb™ Zener TVS diode designed to clamp transient overvoltages on a 47.8 V nominal rail. Its 1500 W peak pulse power rating means it can absorb high-energy surges — typical for industrial power supplies, motor drives, and telecom rectifiers — without failing short. The 53.2 V minimum breakdown voltage sets the clamp threshold; the 77 V maximum clamping voltage at the peak pulse current defines the protection ceiling the downstream circuitry must survive. ## Obsolete — sourcing through independent channels onsemi lists the 1N6289ARL4 as Obsolete. The part was supplied in Tape & Reel (TR) packaging for automated insertion into through-hole boards. For BOM lines that still call this exact order code, the only supply path is the independent market — franchised distributors have exhausted their last-time-buy allocations. ## Breakdown voltage and clamping performance The Zener TVS triggers at a minimum breakdown of 53.2 V and clamps the transient to a maximum of 77 V at the rated peak pulse current. The reverse standoff voltage is 47.8 V — the rail voltage below which the diode does not conduct leakage. This is a unidirectional device, so it protects one polarity; for AC or bidirectional rails you would need two parts or a bidirectional TVS. Operating temperature spans -65°C to 175°C, covering automotive under-hood and industrial enclosure environments without derating concerns. The DO-201AD axial package is a through-hole form factor with two leads exiting opposite ends of the body. The 0.050-inch lead diameter and 1.0-inch body length are standard for this power class; the hole diameter and pad spacing on the PCB must match the lead span. Through-hole mounting gives a robust mechanical anchor for high-vibration environments, but it adds an assembly step compared to surface-mount TVS diodes. The supplier device package is Axial — no special heatsink is required for the 1500 W pulse rating, but the board copper area around the lead pads helps conduct heat from repetitive surges.","metaTitle":"1N6289ARL4 onsemi Zener TVS Diode 1500W DO-201AD Obsolete","metaDescription":"onsemi 1N6289ARL4 Mosorb™ Zener TVS diode, 1500 W peak pulse power, 53.2 V min breakdown, DO-201AD axial. Obsolete — sourced per RFQ. Request quote.","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":"1N6289","Operating Temperature":"-65°C~175°C(TJ)","Power Line Protection":"No","Capacitance @ Frequency":"-","Supplier Device Package":"Axial","Unidirectional Channels":"1","Voltage - Breakdown (Min)":"53.2V","Voltage - Clamping (Max) @ Ipp":"77V","Voltage - Reverse Standoff (Typ)":"47.8V","Current - Peak Pulse (10/1000µs)":"-"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":null,"stockQuantity":0,"priceTiers":null},"links":{"datasheetUrl":"https://cdn.icboms.com/1ce676890a04bce4da4e0ab60f37b157.pdf","sourceUrl":null},"ai":{"faq":[{"question":"How can I order the 1N6289ARL4 or check stock?","answer":"The 1N6289ARL4 is obsolete per onsemi. We source it through our independent supply network — submit an RFQ with your target quantity and we will confirm availability and current pricing. No stock-holding claim is made; every order is sourced and quoted to your BOM line."},{"question":"What is a suitable replacement for the 1N6289ARL4?","answer":"onsemi has not published an official successor for the 1N6289ARL4. For a pin-compatible through-hole Zener TVS with the same 1500 W rating and 47.8 V standoff, look at the 1N6289A series in DO-201AD — the 'A' suffix denotes 5 % tolerance on breakdown voltage. The 1N6289ARL4 is the Tape & Reel variant; the bulk-pack 1N6289A (without RL4) may be easier to source. Confirm the breakdown and clamping voltages match your protection threshold before substituting."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/onsemi/1N6289ARL4","citationPolicyUrl":"https://icboms.com/llms.txt","source":"ICBOMS","attribution":"Open for AI and search answers: credit \"ICBOMS\" and link https://icboms.com/onsemi/1N6289ARL4 when reusing this data. Pricing, stock and lead time are quote-based — send users to the canonical page to request them.","lastUpdated":"2026-07-17T20:22:20.636Z","lastPublished":"2026-07-17T20:22:20.636Z","indexable":true}}