Surface Mount Fuses Ceramic Fuse > 469 Series RoHS Pb 469 Series 1206 Slo-Blo Fuse Description The 469 Series is a 100% Lead-free, RoHS compliant and Halogen-free fuse series designed specifically to provide over-current protection to circuits that operate under high working ambient temperature up to 150C. The general design ensures excellent temperature stability and performance reliability. The high It values, typical in the Littelfuse Ceramic fuse family, ensure high inrush current withstand capability. Features Operating Temperature Suitable for both leaded from -55C to +150C and lead-free reflow / wave soldering Agency Approvals 100% Lead-free, RoHS compliant and Halogen- AGENCY AGENCY FILE NUMBER AMPERE RANGE free E10480 2A 8A Applications 29862 2A 8A LCD Displays Scanners Servers Data Modems Electrical Characteristics for Series Notebook Computers Gaming Consoles Printers % of Ampere Ampere Opening Time at 25C Rating Rating 100% 2A 8A 4 hours, Minimum Additional Information 200% 2A 8A 1 sec., Min. 120 secs., Max. 300% 2A 8A 0.1 sec., Min. 3 secs., Max. 800% 2A 8A 0.002 sec., Min. 0.05 sec., Max. Datasheet Resources Samples Electrical Specifications by Item Agency Approvals Ampere Max. Nominal Nominal Nominal Voltage Nominal Power Amp 2 Rating Voltage Interrupting Rating Resistance Melting I t Drop At Rated Dissipation At Code 2 2 3 4 (A) Rating (V) (Ohms) (A Sec.) Current (V) Rated Current (W) 2.00 002. 63 60 A 63 VDC 0.166 0.2250 0.455 0.91 x x 4.00 004. 32 0.052 3.560 0.236 0.944 x x 60 A 32 VDC 5.00 005. 32 0.033 5.620 0.216 1.080 x x 6.00 006. 24 0.026 9.410 0.274 1.644 x x 7.00 007. 24 60 A 24 VDC 0.020 14.400 0.216 1.512 x x 8.00 008. 24 0.016 23.720 0.233 1.864 x x Notes: 1. AC Interrupting Rating tested at rated voltage with unity power factor. DC Interrupting Devices designed to carry rated current for 4 hours minimum. It is recommended that Rating tested at rated voltage with time constant < 0.8 msec. devices be operated continuously at no more than 80% rated current. See Temperature Re-rating Curvefor additional re-rating information. 2. Nominal Resistance measured with < 10% rated current. Devices designed to be mounted with marking code facing up. 3. Nominal Melting It measured at 1 msec opening time. 4. Nominal Voltage Drop measured at rated current after temperature has stabilized. 2018 Littelfuse, Inc. Specifications are subject to change without notice. Application testing is strongly recommended. Revised: 12/13/18 Surface Mount Fuses Ceramic Fuse > 469 Series Temperature Re-rating Curve Average Time Current Curves 100 140 120 10 100 80 60 1 40 -65 -45 -25 -5 15 35 55 75 95 115 135 155 TEMPERATURE (C) 0.1 Note: 1. Re-rating depicted in this curve is in addition to the standard re-rating of 20% for continuous operation. 0.01 Example: For continuous operation at 75 degrees celsius, the fuse should be rerated as follows: I = (0.80)(0.85)I = (0.68)I RAT RAT 0.001 1 10 100 1000 CURRENT IN AMPERES Soldering Parameters t Reflow Condition Pb free assembly P T P Critical Zone Ramp-up TL to TP - Temperature Min (T ) 150C s(min) T L Pre Heat - Temperature Max (T ) 200C s(max) t L T S(max) - Time (Min to Max) (t ) 60 180 seconds s Ramp-down Average Ramp-up Rate (Liquidus Temp Preheat 3C/second max. (T ) to peak) T S(min) L t S T to T - Ramp-up Rate 5C/second max. S(max) L - Temperature (T ) (Liquidus) 217C L 25 Reflow time to peak temperature - Temperature (t ) 60 150 seconds L Time (t 25C to peak) +0/-5 Peak Temperature (T ) 260 C P Time within 5C of actual peak 10 30 seconds Temperature (t ) p Ramp-down Rate 6C/second max. Time 25C to peak Temperature (T ) 8 minutes max. P Do not exceed 260C Wave Soldering 260C, 10 seconds max. 2018 Littelfuse, Inc. Specifications are subject to change without notice. Revised: 12/13/18 PERCENT OF RATING TIME IN SECONDS 2A 4A 5A 6A 7A 8A Temperature