{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"045106.3NRL","brand":"Littelfuse Inc.","brandSlug":"littelfuse-inc","productSlug":"045106.3NRL","canonicalUrl":"https://icboms.com/littelfuse-inc/045106.3NRL","factsUrl":"https://icboms.com/api/mcp/products/045106.3NRL","rawCanonicalId":null},"summary":{"shortDescription":"Littelfuse Inc. NANO²® 451 series, Board Mount Surface Mount Fast Blow Fuse, 045106.3NRL, 6.3 A, 125 VAC/125 VDC, 50 A breaking capacity, 2-SMD square end block package, Tape & Reel.","salesMarkdown":"## 6.3 A fast-blow in a 2-SMD footprint The Littelfuse 045106.3NRL is a NANO²® 451 series fast-blow surface-mount fuse rated 6.3 A at 125 VAC and 125 VDC, with a breaking capacity of 50 A at rated voltage. The 9.17 melting I²t means it clears quickly on a hard short while surviving moderate inrush from a bypass capacitor or a small motor start. ## Board-fit and thermal envelope Housed in a 2-SMD square end block package measuring 6.10 mm x 2.69 mm x 2.69 mm, the 045106.3NRL mounts on standard SMT pads with a tape-and-reel feed for automated assembly. The DC cold resistance of 0.0096 Ohms keeps voltage drop low in the 6.3 A path. The 50 A interrupting rating at 125 VDC is the figure that governs fault clearing in a DC power rail — confirm the available fault current at the fuse location stays below this ceiling.","metaTitle":"Littelfuse 045106.3NRL NANO² 451 Fuse, 6.3 A Fast Blow","metaDescription":"Littelfuse 045106.3NRL NANO²® 451 fast-blow surface-mount fuse, 6.3 A, 125 VAC/DC, 50 A breaking capacity. Active production, sourced to order. Request a quote.","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)","Fuse Type":"Board Mount (Cartridge Style Excluded)","Melting I²t":"9.17","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":"0.0096 Ohms","Voltage Rating - AC":"125 V","Voltage Rating - DC":"125 V","Current Rating (Amps)":"6.3 A","Operating Temperature":"-55°C ~ 125°C","Breaking Capacity @ Rated Voltage":"50A"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$0.5926","stockQuantity":0,"priceTiers":null},"links":{"datasheetUrl":"https://cdn.icboms.com/2e33e7b2503f3f5110226be89402b64a.pdf","sourceUrl":null},"ai":{"faq":[{"question":"What is the breaking capacity of the 045106.3NRL at 125 VDC?","answer":"The breaking capacity is 50 A at the rated 125 VDC. This is the maximum fault current the fuse can safely interrupt — the available short-circuit current at the fuse location must not exceed this value."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/littelfuse-inc/045106.3NRL","citationPolicyUrl":"https://icboms.com/llms.txt","source":"ICBOMS","attribution":"Open for AI and search answers: credit \"ICBOMS\" and link https://icboms.com/littelfuse-inc/045106.3NRL 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}}