{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"1206SFF500F/32-2","brand":"Littelfuse Inc.","brandSlug":"littelfuse-inc","productSlug":"1206SFF500F-32-2","canonicalUrl":"https://icboms.com/littelfuse-inc/1206SFF500F-32-2","factsUrl":"https://icboms.com/api/mcp/products/1206SFF500F%2F32-2","rawCanonicalId":null},"summary":{"shortDescription":"Littelfuse Inc. SFF series, Board Mount (Cartridge Style Excluded) fast-blow fuse, 1206SFF500F/32-2, 5 A, 32 VDC, 45 A breaking capacity, 1206 (3216 Metric) SMT package.","salesMarkdown":"## Protection envelope and sourcing reality The Littelfuse 1206SFF500F/32-2 is a 5 A fast-blow fuse in the SFF series, rated for 32 VDC with a 45 A breaking capacity at rated voltage. The 0.6 melting I²t means it clears quickly on high inrush events, but the fast-blow characteristic also means it may nuisance-open on repetitive surge currents near the I²t threshold. Littelfuse lists this part as obsolete. Sourcing runs through independent distribution channels; quantities and pricing are confirmed at RFQ against the BOM line. ## Board-fit and thermal environment The 1206 (3216 metric) SMT package — 0.126\" x 0.063\" x 0.043\" — fits standard pick-and-place assembly with a 1206 footprint. The 0.018 ohm DC cold resistance keeps voltage drop low at rated current, but the resistance rises with temperature; derate the continuous current above 25°C per the Littelfuse SFF derating curve. The fuse element is sealed in the 1206 body — no outgassing or contamination path into the board assembly. ## Approvals and compliance UL recognized component — the fuse carries UL listing per the SFF series approval.","metaTitle":"Littelfuse 1206SFF500F/32-2 SFF Fuse, 5 A 32 V Fast Blow","metaDescription":"Littelfuse 1206SFF500F/32-2 SFF series fast-blow fuse, 5 A, 32 VDC, 45 A breaking capacity, 1206 SMT. 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.","Color":"-","Series":"SFF","Package":"Tape & Reel (TR) Cut Tape (CT)","Fuse Type":"Board Mount (Cartridge Style Excluded)","Melting I²t":"0.6","Mounting Type":"Surface Mount","Response Time":"Fast Blow","Package / Case":"1206 (3216 Metric)","Product Status":"Obsolete","Approval Agency":"UL","lifecycle_stage":"unknown","Size / Dimension":"0.126\\\" L x 0.063\\\" W x 0.043\\\" H (3.20mm x 1.60mm x 1.10mm)","DC Cold Resistance":"0.018 Ohms","Voltage Rating - DC":"32 V","Current Rating (Amps)":"5 A","Operating Temperature":"-55°C ~ 125°C","Breaking Capacity @ Rated Voltage":"45A"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$0.8400","stockQuantity":0,"priceTiers":null},"links":{"datasheetUrl":"https://cdn.icboms.com/8939cf38a5e3035b0d6c6bedcc1d525b.pdf","sourceUrl":null},"ai":{"faq":[{"question":"What is the breaking capacity of 1206SFF500F/32-2?","answer":"45 A at the rated 32 VDC. This is the maximum fault current the fuse can safely interrupt without rupturing the package. For circuits with available fault current above 45 A, a higher-interrupting-rated fuse or a current-limiting upstream device is required."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/littelfuse-inc/1206SFF500F-32-2","citationPolicyUrl":"https://icboms.com/llms.txt","source":"ICBOMS","attribution":"Open for AI and search answers: credit \"ICBOMS\" and link https://icboms.com/littelfuse-inc/1206SFF500F-32-2 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}}