{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"0451010.NRL","brand":"Littelfuse Inc.","brandSlug":"littelfuse-inc","productSlug":"0451010.NRL","canonicalUrl":"https://icboms.com/littelfuse-inc/0451010.NRL","factsUrl":"https://icboms.com/api/mcp/products/0451010.NRL","rawCanonicalId":null},"summary":{"shortDescription":"Littelfuse NANO²® 451 series, 0451010.NRL, 10A fast-blow SMD fuse, 125V AC/DC, 35A AC / 50A DC breaking capacity, 2-SMD square end block package, Tape & Reel.","salesMarkdown":"## 10A fast-blow SMD fuse for board-level protection The Littelfuse 0451010.NRL is a 10 A fast-blow SMD fuse from the NANO²® 451 series, rated for 125 V AC and 125 V DC. Its fast-blow response clears overcurrents quickly, protecting sensitive downstream components on a PCB. Breaking capacity reaches 35 A AC and 50 A DC at rated voltage, meaning the fuse can safely interrupt a fault up to those levels without rupturing — critical for DC rails where arcs sustain longer. Housed in a 2-SMD square end block package measuring 6.10 mm x 2.69 mm x 2.69 mm, this fuse is designed for surface-mount assembly. The compact footprint suits dense PCB layouts where through-hole fuses would consume too much real estate. Available on Tape & Reel or Cut Tape, it integrates into standard pick-and-place lines. The DC cold resistance of 0.0056 Ohms keeps voltage drop low in the 10 A path. ## Temperature range and approvals Approvals from CSA, PSE, and UL provide acceptance in North American and Asian markets. The melting I²t of 26.46 A²s gives a measure of the energy needed to open the fuse — useful for coordinating with upstream protection and ensuring the fuse does not nuisance-blow on inrush.","metaTitle":"0451010.NRL Littelfuse NANO² 451, 10A Fast-Blow SMD Fuse","metaDescription":"0451010.NRL Littelfuse NANO² 451, 10A fast-blow SMD fuse, 125V AC/DC, 35A/50A breaking capacity. Active production. Quoted to order.","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":null,"productStatus":"Active","categoryPath":["Circuit Protection"],"specifications":{"Mfr":"Littelfuse Inc.","Color":"-","Series":"NANO²® 451","Package":"Tape & Reel (TR); Cut Tape (CT)","Fuse Type":"Board Mount (Cartridge Style Excluded)","Melting I²t":"26.46","Mounting Type":"Surface Mount","Response Time":"Fast Blow","Package / Case":"2-SMD, Square End Block","Product Status":"Active","Approval Agency":"CSA, PSE, UL","lifecycle_stage":"unknown","Size / Dimension":"0.240\\\" L x 0.106\\\" W x 0.106\\\" H (6.10mm x 2.69mm x 2.69mm)","DC Cold Resistance":"0.0056 Ohms","Voltage Rating - AC":"125 V","Voltage Rating - DC":"125 V","Current Rating (Amps)":"10 A","Operating Temperature":"-55°C~125°C","Breaking Capacity @ Rated Voltage":"35A AC, 50A DC"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$2.2800","stockQuantity":0,"priceTiers":null},"links":{"datasheetUrl":"https://cdn.icboms.com/604a0e4c498aa97d2607992508357d04.pdf","sourceUrl":null},"ai":{"faq":[{"question":"What is the melting I²t of 0451010.NRL?","answer":"The melting I²t is 26.46 A²s, which helps coordinate the fuse's response with upstream protection and inrush current events."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/littelfuse-inc/0451010.NRL","citationPolicyUrl":"https://icboms.com/llms.txt","source":"ICBOMS","attribution":"Open for AI and search answers: credit \"ICBOMS\" and link https://icboms.com/littelfuse-inc/0451010.NRL when reusing this data. Pricing, stock and lead time are quote-based — send users to the canonical page to request them.","lastUpdated":"2026-08-11T15:49:49.435Z","lastPublished":"2026-08-11T15:49:49.435Z","indexable":true}}