{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"F1206A0R25FWTR","brand":"KYOCERA AVX","brandSlug":"kyocera-avx","productSlug":"F1206A0R25FWTR","canonicalUrl":"https://icboms.com/kyocera-avx/F1206A0R25FWTR","factsUrl":"https://icboms.com/api/mcp/products/F1206A0R25FWTR","rawCanonicalId":null},"summary":{"shortDescription":"KYOCERA AVX Accu-Guard® series, F1206A0R25FWTR, board-mount fast-blow surface-mount fuse, 250 mA rated current, 32 V DC, 50 A breaking capacity, 1206 (3216 metric) package, Tape & Reel.","salesMarkdown":"## Fast-blow 250 mA fuse for secondary-side protection The F1206A0R25FWTR is a 250 mA fast-blow surface-mount fuse from the KYOCERA AVX Accu-Guard® series, rated for 32 V DC with a breaking capacity of 50 A at rated voltage. With a cold resistance of 0.75 Ω, the voltage drop at rated current is roughly 188 mV — negligible in a 24 V or 12 V rail, but worth accounting for in a 3.3 V or 5 V low-voltage branch where the fuse adds about 5–6 % of the rail voltage. ## Melting I²t and inrush handling The melting I²t of 4E-05 A²s sets the energy threshold for the fuse element to open — useful for sizing against capacitor inrush or brief overcurrent events. The fuse's I²t of 4E-05 A²s at 32 V corresponds to an energy threshold that a direct short on a charged capacitor could exceed.","metaTitle":"F1206A0R25FWTR KYOCERA AVX Accu-Guard® 250 mA Fast-Blow","metaDescription":"F1206A0R25FWTR 250 mA fast-blow surface-mount fuse, 32 V DC, 50 A breaking capacity, 0.75 Ω cold resistance, -55 to 125 °C. Active production.","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":null,"productStatus":"Active","categoryPath":["Circuit Protection"],"specifications":{"Mfr":"KYOCERA AVX","Color":"-","Series":"Accu-Guard®","Package":"Tape & Reel (TR)","Fuse Type":"Board Mount (Cartridge Style Excluded)","Melting I²t":"4E-05","Mounting Type":"Surface Mount","Response Time":"Fast Blow","Package / Case":"1206 (3216 Metric)","Product Status":"Active","Approval Agency":"cUL, UL","lifecycle_stage":"unknown","Size / Dimension":"0.122\\\" L x 0.063\\\" W x 0.047\\\" H (3.10mm x 1.60mm x 1.20mm)","DC Cold Resistance":"0.75 Ohms","Voltage Rating - DC":"32 V","Current Rating (Amps)":"250 mA","Operating Temperature":"-55°C ~ 125°C","Breaking Capacity @ Rated Voltage":"50A"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$0.4172","priceTiers":null},"links":{"datasheetUrl":"https://cdn.icboms.com/07460ece3a60c13a706de6d7d5f600e8.pdf","sourceUrl":null,"alternativesUrl":"https://icboms.com/api/mcp/products/F1206A0R25FWTR/alternatives.json"},"ai":{"faq":[{"question":"What is the melting I²t of F1206A0R25FWTR?","answer":"The melting I²t is 4E-05 A²s, which defines the energy needed to open the fuse element. Use this value to verify the fuse holds through the inrush pulse of a capacitive load or a brief overcurrent transient."},{"question":"What voltage rating does F1206A0R25FWTR carry?","answer":"It is rated for 32 V DC. This limits its use to circuits with a nominal bus voltage at or below 32 V — suitable for 24 V industrial power supplies, 12 V automotive auxiliary lines, or 5 V/3.3 V secondary rails."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/kyocera-avx/F1206A0R25FWTR","citationPolicyUrl":"https://icboms.com/llms.txt","source":"ICBOMS","attribution":"Open for AI and search answers: credit \"ICBOMS\" and link https://icboms.com/kyocera-avx/F1206A0R25FWTR 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}}