Fuse Mounting Accessories Page 172 Fuse & Mounting Accessories

2017 Littelfuse, Inc. Specifications are subject to change without notice. Revised: 03/03/17 Radial Lead Fuses TE5 > Time-Lag Fuse > 399 Series Average Time Current Curves CURRENT IN AMPERES TIME IN SECONDS 0.001 0.010 0.100 1 10 100 1000 10000 100000 1 10 100 1000 0.20 0.125A 0.160A 0.200A 0.250A 0.315A 0.400A 0.500A 0.630A 0.800A 1.00A 1.25A 1.60A 2.00A 2.50A 3.15A 4.00A Soldering Parameters - Wave Soldering Dwell Time 0 20 40 60 80 100 120 140 160 180 200 220 240 260 280 300 0 10 20 30 40 50 60 70 80 90 100 110 120 130 140 150 160 170 180 190 200 210 220 230 240 Time (Seconds) Temperature (C) - Measured on bottom side of board Cooling Time Preheat Time Wave Parameter Lead-Free Recommendation Preheat: (Depends on Flux Activation Temperature) (Typical Industry Recommendation) Temperature Minimum: 100C Temperature Maximum: 150C Preheat Time: 60-180 seconds Solder Pot Temperature: 260C Maximum Solder Dwell Time: 2-5 seconds Recommended Hand-Solder Parameters: Solder Iron Temperature: 350C +/- 5C Heating Time: 5 seconds max. Note: These devices are not recommended for IR or Convection Reflow process. Recommended Process Parameters: Temperature Re-rating Curve 0 20 40 60 80 100 120 140 -40 -20 0 20 40 60 80 AMBIENT TEMPERATURE (C) PERCENT OF RATING 23C Note: 1. Rerating depicted in this curve is in addition to the standard derating of 25% for continuous operation.

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