0485002.DR Littelfuse

Surface Mount Fuses 2 Nano > 600VDC > Fast-Acting Fuse > 485 Series RoHS 485 Series Fuse (Not Recommended for Automotive Applications) Description 2 The 485 Nano Fuse Series is a small, fast-acting, surface mount ceramic fuse rated at a remarkable 600VDC at its small size and with 100A breaking capacity. It is primarily designed for circuit protection in high energy applications. This product is fully compatible with lead-free solder alloys and higher temperature profiles associated with lead-free assembly. Features Fast-Acting / Surface Relatively high breaking mount high fuse for high capacity at 100A. voltage (up to 600VDC) RoHS-compliant and applications. Agency Approvals Halogen-free Fully compatible with Ampere Ratings: 1A - Agency Agency File Number Ampere Rating lead-free solder alloys 3.15A E10480 1A - 3.15A and higher temperature profiles associated with 29862 1A - 3.15A lead-free assembly. Applications Electrical Characteristics for Series PC server and Telecom Uninterruptible Power % of Ampere Rating Opening Time at 25C systems Supply (UPS) / 3-Phase 100% 4 hours, Minimum Power Supplies LCD TV inverter boards 200% 60 seconds, Maximum DC input protection 380VDC server / lighting in data center Additional Information Datasheet Resources Samples Electrical Specifications by ltem Ampere Max Voltage Nominal Agency Approvals Nominal Cold 2 Rating Amp Code Rating Interrupting Rating Melting I t Resistance (Ohms) 2 (A) (V) (A sec) 1.00 001. 600 0.264 0.3044 X X 1.50 01.5 600 0.123 0.3917 X X 100A 600VDC, 2.00 002. 600 100A 250VAC 0.0744 0.8962 X X 2.50 02.5 600 0.0583 1.4921 X X 3.15 3.15 600 0.0395 3.304 X X Notes: 1. Cold resistance measured at less than 10% of rated current at 23C. 2. Agency Approval Table Key: X=Approved or Certified, P=Pending and Blank=Not Approved. 2 3. I t values stated for 8 msec opening time. 2020 Littelfuse, Inc. Specifications are subject to change without notice. Revised: GD.10/14/20Surface Mount Fuses 2 Nano > 600VDC > Fast-Acting Fuse > 485 Series 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. 0.01 0.001 0.1 1 10 10 0 1000 CURRENT IN AMPERES Soldering Parameters - Reflow Soldering Reflow Condition Pb Free Assembly t P - Temperature Min (T ) 150C T s(min) P Critical Zone Ramp-up T to T L P Pre Heat - Temperature Max (T ) 200C s(max) - Time (Min to Max) (t ) 60 180 ses T L s t L T Average Ramp-up Rate (Liquidus Temp (T ) to peak) 5C/second max. S(max) L T to T - Ramp-up Rate 5C/second max. S(max) L Ramp-down Preheat - Temperature (T ) (Liquidus) 217C L T Reflow S(min) - Temperature (t ) 60 150 seconds t L S +0/5 Peak Temperature (T ) 260 C P 25 Time within 5C of actual peak Temperature (t ) 20 40 seconds p time to peak temperature Time Ramp-down Rate 5C/second max. (t 25C to peak) Time 25C to peak Temperature (T ) 8 minutes max. P Do not exceed 260C 2020 Littelfuse, Inc. Specifications are subject to change without notice. Revised: GD.10/14/20 TIME IN SECONDS 1A 1.5A 2A 2.5A 3.15A Temperature