{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"1N6274ARL4G","brand":"onsemi","brandSlug":"onsemi","productSlug":"1N6274ARL4G","canonicalUrl":"https://icboms.com/onsemi/1N6274ARL4G","factsUrl":"https://icboms.com/api/mcp/products/1N6274ARL4G","rawCanonicalId":null},"summary":{"shortDescription":"onsemi Mosorb™ series, 1N6274ARL4G, Zener TVS diode, 1500W (1.5kW) peak pulse power, 11.1V reverse standoff, 18.2V clamping, DO-201AD axial through-hole, single unidirectional channel.","salesMarkdown":"## Transient suppressor for legacy board protection The 1N6274ARL4G is a Zener TVS diode from onsemi's Mosorb™ series, rated for 1500W (1.5kW) peak pulse power dissipation. It clamps transients at 18.2V maximum when the surge current hits, protecting downstream circuitry from overvoltage events. ## Voltage thresholds and operating range Reverse standoff voltage is 11.1V typical, meaning the part stays non-conductive below that level. Breakdown starts at a minimum of 12.4V, and clamping is guaranteed at 18.2V maximum — a tight window that limits the voltage spike seen by the load. Operating junction temperature spans -65°C to 175°C, covering extreme thermal environments like engine compartments or outdoor telecom cabinets without derating concerns. ## Package and mounting for rework and retrofit Housed in a DO-201AD axial through-hole package, the 1N6274ARL4G is suited for manual assembly or rework on existing boards. The axial leads allow easy insertion into plated through-holes without special tooling. The single unidirectional channel means this diode protects one polarity line — it is not a bidirectional device, so it cannot be used on AC lines or bipolar signal pairs without an external bridge. ## Lifecycle status and sourcing reality onsemi lists the 1N6274ARL4G as Obsolete. There is no official successor or cross-reference in the ledger, so any replacement must be selected based on the same 1.5kW peak pulse rating, 11.1V standoff, and DO-201AD footprint. Because the part is obsolete, sourcing is limited to existing distributor stock or broker channels. Availability and pricing are confirmed at quote time against the BOM quantity — no stock-holding claim is made here.","metaTitle":"1N6274ARL4G onsemi Mosorb™ Zener TVS – Obsolete, 1.5kW","metaDescription":"onsemi 1N6274ARL4G Zener TVS, Mosorb™ series, 1.5kW peak pulse, 11.1V standoff, 18.2V clamp. DO-201AD axial.","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":"1N6274","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)":"-"}},"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 1N6274ARL4G's type and series?","answer":"It is a Zener TVS diode from the onsemi Mosorb™ series, designed for general-purpose circuit protection."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/onsemi/1N6274ARL4G","citationPolicyUrl":"https://icboms.com/llms.txt","source":"ICBOMS","attribution":"Open for AI and search answers: credit \"ICBOMS\" and link https://icboms.com/onsemi/1N6274ARL4G when reusing this data. Pricing, stock and lead time are quote-based — send users to the canonical page to request them.","lastUpdated":"2026-07-17T20:13:44.730Z","lastPublished":"2026-07-17T20:13:44.730Z","indexable":true}}