Fuse Datasheet 468 Series 1206 Slo-Blo Fuse RoHS Pb Description The 468 Series Slo-Blo Surface Mount Fuse (SMF) is a small (1206 size) thin-film device designed for secondary protection of circuits used in space constrained applications such as hand-held portable electronic devices. This series is 100% lead-free and meets the requirements of the RoHS directive. New Halogen-Free 468 Series fuses are available to order use the HF suffix. See Part Numbering section for additional information. Features and Benefits Complies with electronic P ackage is visually distinct industry environmental from fast-acting version for standards for lead reduction. easy identification. P roduct is compatible with Top side marking allows lead-free solders and higher visual verification of temperature profiles. amperage rating. Additional Information Time delay feature Lead-free, halogen-free and withstands high inrush ROHS compliant. currents and prevents nuisance openings. Resources Accessories Samples Applications Secondary protection for space constrained applications: Cell phones D VD players Batter y packs Hard disk driv es. Electrical Characteristics for Series Digital cameras O % of Ampere Rating Opening Time at 25 C Agency Approvals 100% 4 hours, Minimum 200% 1 sec., Min. 120 sec., Max. Agency Agency File Number Ampere Range 300% 0.05 sec., Min. 1.5 sec., Max E10480 0.5A - 3A 800% 0.0015 sec., Min. 0.05 sec., Max. 29862 0.5A - 3A Electrical Specifications by Item Ampere Max Nominal Cold Nominal Nom Nom Agency Approvals Interrupting Rating Amp Code Voltage Resistance Melting Voltage Drop Power Rating 1 2 2 (A) Rating (V) (Ohms) I t (A sec) (mV) Dissipation (W) 0.50 .500 63 0.27000 0.0310 156.77 0.0784 x x 1.00 001. 63 50A 63 VAC/VDC 0.0790 0.1270 94.70 0.0947 x x 1.50 01.5 63 0.0440 0.2880 82.32 0.1235 x x 2.00 002. 63 0.0325 0.5060 77.27 0.1545 x x 35A 63 VAC 50A 63 VDC 2.50 02.5 63 0.0240 1.0110 73.92 0.1848 x x 3.00 003. 32 50A 32 VAC/VDC 0.01950 1.2700 72.95 0.2189 x x 1. Measured at 10% of rated current, 25C. 2. Measured at rated voltage. 2021 Littelfuse, Inc. 1 Specifications are subject to change without notice. Revised: GD. 10/27/21Fuse Datasheet 468 Series 1206 Slo-Blo Fuse Temperature Re-rating Curve Average Time Current Curves 100 10 1 0.1 Note: 1. Rerating depicted in this curve is in addition to the standard derating of 25% for continuous operation. Example: For continuous operation at 70 degrees celsius, the fuse should be deratedas follows: 0.01 I = (0.75)(0.80)I = (0.60)I RAT RAT 2. The temperature derating curve represents the nominal conditions. For questions about temperature derating curve, please consult Littelfuse technical support for assistance. 0.001 0 1 10 100 Current in Amperes Soldering Parameters Reflow Condition Pb Free assembly t P - Temperature Min (T ) 150C s(min) T P Critical Zone Ramp-up Pre Heat - Temperature Max (T ) 200C T to T s(max) L P - Time (Min to Max) (t ) 60 180 secs s T L t Average ramp up rate (Liquidus Temp (T ) to L L 5C/second max T S(max) peak T to T - Ramp-up Rate 5C/second max Ramp-down S(max) L - Temperature (T ) (Liquidus) 217C L T S(min) Reflow - Temperature (t ) 60 150 seconds t L S Preheat +0/- 5 Peak Temperature (T ) 260 C P Time within 5C of actual peak Temperature (t ) 25C 20 40 seconds p t 25C to Peak Ramp-down Rate 5C/second max Time (t) Time 25C to peak Temperature (T ) 8 minutes Max. P Do not exceed 260C Wave Soldering 260C, 10 seconds max. 2021 Littelfuse, Inc. 2 Specifications are subject to change without notice. Revised: GD. 10/27/21 Time in Seconds .5A 1A 1.5A 2A 2.5A 3A Temperature (T)