{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"1N6267ARL4G","brand":"Littelfuse Inc.","brandSlug":"littelfuse-inc","productSlug":"1N6267ARL4G","canonicalUrl":"https://icboms.com/littelfuse-inc/1N6267ARL4G","factsUrl":"https://icboms.com/api/mcp/products/1N6267ARL4G","rawCanonicalId":null},"summary":{"shortDescription":"Littelfuse Mosorb Zener TVS, 1N6267ARL4G, unidirectional, 5.8V standoff, 1.5kW peak pulse, 10.5V clamping, DO-201AD axial, -65 to 175°C.","salesMarkdown":"## What the 1N6267ARL4G is The 1N6267ARL4G is a unidirectional Zener-based transient voltage suppressor (TVS) in Littelfuse's Mosorb series, housed in the DO-201AD axial package. Mosorb parts are general-purpose Zeners rated for through-hole board assembly — the axial lead form factor handles vibration and thermal cycling better than a small-signal SMD part in rugged environments. ## Peak pulse power and voltage ratings Peak pulse power is rated 1500 W (1.5 kW) at the waveform defined in the relevant transient-suppression standard. That figure is the pulse-energy ceiling the Zener junction absorbs without degradation — it is not a continuous dissipation rating. For a TVS protecting a low-voltage rail, 1.5 kW means it survives the first-tier spike and clamps before the downstream IC sees overstress. Breakdown voltage minimum is 6.45 V; reverse standoff typical is 5.8 V. The standoff is below the breakdown threshold — the part sits off-state during normal operation and transitions into avalanche at the breakdown voltage when a transient arrives. Maximum clamping voltage at peak pulse current is 10.5 V, which defines the headroom the protected rail sees during a fault event. ## Temperature grade and what it means for deployment Junction temperature rating is -65 to 175 °C (TJ). The 175 °C ceiling is the distinguishing spec for this part — most general-purpose Zeners top out around 150 °C. A 175 °C junction rating matters in equipment that runs hot by design: power supplies near the magnetics, motor drives in a sealed enclosure, or industrial instrumentation in ambient temperatures that would push a lower-rated part past its limit.","metaTitle":"1N6267ARL4G Littelfuse Mosorb Zener, 5.8V, 1.5kW peak pulse","metaDescription":"Littelfuse 1N6267ARL4G Mosorb Zener TVS, 5.8V standoff, 1.5kW peak pulse, -65 to 175°C. Obsolete. Sourced to order via RFQ.","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":null,"productStatus":"Obsolete","categoryPath":["Circuit Protection"],"specifications":{"Mfr":"Littelfuse Inc.","Type":"Zener","Series":"Mosorb™","Package":"Tape & Reel (TR); Cut Tape (CT)","Applications":"General Purpose","Mounting Type":"Through Hole","Package / Case":"DO-201AD, Axial","Product Status":"Obsolete","lifecycle_stage":"unknown","Power - Peak Pulse":"1500W (1.5kW)","Base Product Number":"1N6267A","Operating Temperature":"-65°C~175°C(TJ)","Power Line Protection":"No","Capacitance @ Frequency":"-","Supplier Device Package":"Axial","Unidirectional Channels":"1","Voltage - Breakdown (Min)":"6.45V","Voltage - Clamping (Max) @ Ipp":"10.5V","Voltage - Reverse Standoff (Typ)":"5.8V","Current - Peak Pulse (10/1000µs)":"-"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":null,"priceTiers":null},"links":{"datasheetUrl":"https://cdn.icboms.com/b2bad05ac2a782d44789dbfb00c46ecc.pdf","sourceUrl":null,"alternativesUrl":"https://icboms.com/api/mcp/products/1N6267ARL4G/alternatives.json"},"ai":{"faq":[{"question":"What is the 1N6267ARL4G's listed type on this Circuit Protection line?","answer":"The part is classified as a Zener — specifically a unidirectional Zener-based TVS in the Mosorb series. Unlike a regulator Zener used for a precise voltage reference, a TVS Zener is selected for its peak pulse power and clamping voltage: it is a first-surge protector, not a reference diode."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/littelfuse-inc/1N6267ARL4G","citationPolicyUrl":"https://icboms.com/llms.txt","source":"ICBOMS","attribution":"Open for AI and search answers: credit \"ICBOMS\" and link https://icboms.com/littelfuse-inc/1N6267ARL4G when reusing this data. Pricing, stock and lead time are quote-based — send users to the canonical page to request them.","lastUpdated":"2026-07-22T16:18:31.622Z","lastPublished":"2026-07-22T16:18:31.622Z","indexable":true}}