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456 Datasheet(PDF) 2 Page - Littelfuse |
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456 Datasheet(HTML) 2 Page - Littelfuse |
2 / 4 page Introduction to Circuit Protection Introduction to Circuit Protection Transientology 66 © 2009 Littelfuse, Inc. Specifications are subject to change without notice. Surface Mount Fuses 456 Series NANO2® > 456 Series Please refer to www.littelfuse.com/series/456.html for current information. Average Time Current Curves Temperature Rerating Curve AMBIENT TEMPERATURE 248°F 212°F 176°F 140°F 104°F 68°F 32°F -4°F -40°F -76°F 120°C 264°F 140°C 100°C 80°C 60°C 40°C 20°C 0°C -20°C -40°C -60°C 0 0 20 40 60 20 40 60 Soldering Parameters – Reflow Soldering Reflow Condition Pre Heat -Temperature Min (T s(min)) 150°C -Temperature Max (T s(max)) 200°C -Time (Min to Max) (t s) Average ramp up rate (LiquidusTemp (T L) to peak 5°C/second max. T S(max) to TL - Ramp-up Rate 5°C/second max. Reflow -Temperature (T L) (Liquidus) 217°C -Temperature (t L) PeakTemperature (T P) 250 °C Time within 5°C of actual peak Temperature (t p) Ramp-down Rate 5°C/second max. Time 25°C to peakTemperature (T P) 8 minutes max. Do not exceed 260°C Time TP TL TS(max) TS(min) 25 tP tL tS time to peak temperature (t 25ºC to peak) Ramp-down Ramp-up Preheat Critical Zone TL to TP 0.01 0.1 1 10 100 1 10 100 1000 CURRENT IN AMPERES |
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