{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"1.5KE6.8ARL4G","brand":"Littelfuse Inc.","brandSlug":"littelfuse-inc","productSlug":"1.5KE6.8ARL4G","canonicalUrl":"https://icboms.com/littelfuse-inc/1.5KE6.8ARL4G","factsUrl":"https://icboms.com/api/mcp/products/1.5KE6.8ARL4G","rawCanonicalId":null},"summary":{"shortDescription":"Littelfuse Inc. Mosorb™ series, Zener TVS diode, 1.5KE6.8ARL4G, 1500W peak pulse power, 5.8V reverse standoff, 10.5V clamping, DO-201AD axial, through-hole, unidirectional.","salesMarkdown":"## Zener TVS diode for 5.8 V rail protection The 1.5KE6.8ARL4G: The -65°C to 175°C operating junction temperature range covers military and industrial thermal extremes — the 175°C TJ(max) is the absolute-maximum junction temperature, not the ambient. For a 5.8 V working voltage, the reverse standoff of 5.8 V (typ) means the diode does not conduct at the normal rail voltage; breakdown starts at 6.45 V min, so the rail must stay below that to avoid leakage. ## Obsolete — sourcing through independent channels Littelfuse lists the 1.5KE6.8ARL4G as Obsolete. No pin-compatible direct replacement from Littelfuse has been published; a parametric match from another manufacturer would require board-level re-qualification. The DO-201AD axial package is a standard through-hole form factor — the same footprint serves many TVS diodes in the 1500 W class, so a replacement part with the same package and similar clamping voltage could fit the same PCB holes. The unidirectional polarity means the cathode band must be oriented correctly for the protected rail polarity. ## Surge rating and clamping voltage for the BOM line The 10.5 V clamping voltage at 143 A peak pulse current is the maximum voltage the downstream circuitry sees during a transient; a 5.8 V rail device rated for 10.5 V clamp means the protected ICs must survive at least that voltage for the pulse duration. The 'No Power Line Protection' flag confirms this part is not rated for continuous AC overvoltage — it is a transient suppressor, not a crowbar or circuit breaker.","metaTitle":"1.5KE6.8ARL4G Littelfuse Mosorb™ TVS, 1500W, 5.8V","metaDescription":"Littelfuse 1.5KE6.8ARL4G Mosorb™ Zener TVS diode, 1500W peak pulse, 5.8V reverse standoff, DO-201AD axial. Obsolete — sourced to order against 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)","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":"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)":"6.45V","Voltage - Clamping (Max) @ Ipp":"10.5V","Voltage - Reverse Standoff (Typ)":"5.8V","Current - Peak Pulse (10/1000µs)":"143A"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$0.2000","stockQuantity":0,"priceTiers":null},"links":{"datasheetUrl":"https://cdn.icboms.com/b2bad05ac2a782d44789dbfb00c46ecc.pdf","sourceUrl":null},"ai":{"faq":[{"question":"What is the peak pulse power rating of 1.5KE6.8ARL4G?","answer":"1500 W (1.5 kW) peak pulse power at the 10/1000 µs waveform. The corresponding peak pulse current is 143 A, and the maximum clamping voltage at that current is 10.5 V. The reverse standoff voltage is 5.8 V, with breakdown starting at 6.45 V min."},{"question":"Where can I buy 1.5KE6.8ARL4G?","answer":"Submit an RFQ for lot-specific quantities and lead time."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/littelfuse-inc/1.5KE6.8ARL4G","citationPolicyUrl":"https://icboms.com/llms.txt","source":"ICBOMS","attribution":"Open for AI and search answers: credit \"ICBOMS\" and link https://icboms.com/littelfuse-inc/1.5KE6.8ARL4G when reusing this data. Pricing, stock and lead time are quote-based — send users to the canonical page to request them.","lastUpdated":"2026-07-20T14:34:45.345Z","lastPublished":"2026-07-20T14:34:45.345Z","indexable":true}}