{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"1206SFS500F/32-2","brand":"Littelfuse Inc.","brandSlug":"littelfuse-inc","productSlug":"1206SFS500F-32-2","canonicalUrl":"https://icboms.com/littelfuse-inc/1206SFS500F-32-2","factsUrl":"https://icboms.com/api/mcp/products/1206SFS500F%2F32-2","rawCanonicalId":null},"summary":{"shortDescription":"Littelfuse Inc. SFS series, Board Mount Slow Blow Fuse, 1206 (3216 Metric), 5 A, 32 V DC, 50 A Breaking Capacity, UL Recognized, Tape & Reel.","salesMarkdown":"## Obsolete — last-time-buy sourcing Littelfuse has marked the 1206SFS500F/32-2 as obsolete. ## 5 A slow-blow — what the ratings mean for fit Rated 5 A continuous at 32 V DC, this is a board-mount slow-blow fuse in the 1206 (3216 metric) package. The slow-blow response means it tolerates brief inrush current spikes — think capacitive loads on a power input or motor start — without nuisance opening, while still clearing sustained overcurrents. The 50 A breaking capacity at rated voltage is the maximum fault current it can safely interrupt. In a 32 V DC circuit, that covers most secondary-side power rails in telecom, industrial control, and automotive auxiliary loads — but not a direct battery-line fault where available short-circuit current exceeds 50 A. Melting I²t of 5.3 quantifies the energy needed to open the fuse element. This is the number you compare against the I²t of the downstream components (diode, FET, capacitor) to ensure the fuse clears before they fail short. ## Surface-mount deployment and temperature range DC cold resistance is 0.016 Ω — negligible voltage drop at rated current (80 mV at 5 A), but the resistance rises as the element heats under load, so derate for ambient temperature. The UL recognition means it has passed UL 248-14 testing for branch-circuit protection — a common requirement in North American industrial equipment.","metaTitle":"1206SFS500F/32-2 Littelfuse SFS 5A 32V Slow Blow Fuse","metaDescription":"Littelfuse 1206SFS500F/32-2 SFS series 5A 32V DC slow-blow SMD fuse, 50A breaking capacity, UL approved.","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":null,"productStatus":"Obsolete","categoryPath":["Circuit Protection"],"specifications":{"Mfr":"Littelfuse Inc.","Color":"-","Series":"SFS","Package":"Tape & Reel (TR) Cut Tape (CT)","Fuse Type":"Board Mount (Cartridge Style Excluded)","Melting I²t":"5.3","Mounting Type":"Surface Mount","Response Time":"Slow 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 0.038\\\" H (3.20mm x 1.60mm x 0.97mm)","DC Cold Resistance":"0.016 Ohms","Voltage Rating - DC":"32 V","Current Rating (Amps)":"5 A","Operating Temperature":"-55°C ~ 125°C","Breaking Capacity @ Rated Voltage":"50A"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$0.9000","stockQuantity":0,"priceTiers":null},"links":{"datasheetUrl":"https://cdn.icboms.com/8939cf38a5e3035b0d6c6bedcc1d525b.pdf","sourceUrl":null},"ai":{"faq":[{"question":"How do I get pricing and availability for 1206SFS500F/32-2?","answer":"Submit an RFQ through this listing."},{"question":"What is the closest alternative to 1206SFS500F/32-2 in the SFS series?","answer":"A functional replacement must match the 5 A rating, 32 V DC, slow-blow characteristic, and 1206 footprint — but no pin-compatible drop-in is documented."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/littelfuse-inc/1206SFS500F-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/1206SFS500F-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}}