Surface Mount Fuses Nano2® > 600VDC > Fast-Acting Fuse > 485 Series 485 Series Fuse RoHS Description The 485 Nano2® 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 Agency Approvals Agency Agency File Number Ampere Rating E10480 1A - 3.15A 29862 1A - 3.15A • Fast-Acting / Surface mount high fuse for high voltage (up to 600VDC) applications. • Relatively high breaking capacity at 100A. • Fully compatible with lead-free solder alloys and higher temperature profiles associated with lead-free assembly. • Rating – 1 - 3.15 Amperes. • RoHS compliant / Halogen Free Applications Electrical Characteristics for Series % of Ampere Rating Opening Time at 25ºC 100% 4 hours, Minimum 200% 60 seconds, Maximum • PC server and Telecom systems • LCD TV inverter boards DC input protection • Uninterruptible Power Supply (UPS) / 3-Phase Power Supplies • 380VDC server / lighting in data center Additional Information Datasheet Samples Resources Electrical Specifications by ltem Ampere Rating (A) Amp Code Max Voltage Rating (V) 1.00 001. 1.50 01.5 2.00 002. 600 2.50 02.5 3.15 3.15 Agency Approvals Nominal Cold Resistance (Ohms) Nominal Melting I2t (A2sec) 600 0.264 0.3044 X X 600 0.123 0.3917 X X 0.0744 0.8962 X X 600 0.0583 1.4921 X X 600 0.0395 3.304 X X Interrupting Rating 100A@600VDC, 100A@250VAC Notes: 1. Cold resistance measured at less than 10% of rated current at 23°C. 2. Agency Approval Table Key: X=Approved or Certified, P=Pending and Blank=Not Approved. 3. I2t values stated for 8 msec opening time. © 2016 Littelfuse, Inc. Specifications are subject to change without notice. Application testing is strongly recommended. Revised: 05/10/16 Surface Mount Fuses Nano2® > 600VDC > Fast-Acting Fuse > 485 Series 100 2A 2.5A 3.15A 1A Average Time Current Curves 1.5A Temperature Re-rating Curve TIME IN SECONDS 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 10 100 1000 CURRENT IN AMPERES Soldering Parameters - Reflow Soldering Pre Heat Pb – Free Assembly - Temperature Min (Ts(min)) 150°C - Temperature Max (Ts(max)) 200°C - Time (Min to Max) (ts) 60 – 180 ses Average Ramp-up Rate (Liquidus Temp (TL) to peak) 5°C/second max. TS(max) to TL - Ramp-up Rate 5°C/second max. Reflow - Temperature (TL) (Liquidus) 217°C - Temperature (tL) 60 – 150 seconds 260 Time within 5°C of actual peak Temperature (tp) 20 – 40 seconds Critical Zone TL to TP Ramp-up TL TS(max) tL Ramp-down TS(min) 25 Peak Temperature (TP) +0/–5 tP TP Temperature Reflow Condition Preheat tS time to peak temperature (t 25ºC to peak) Time °C Ramp-down Rate 5°C/second max. Time 25°C to peak Temperature (TP) 8 minutes max. Do not exceed 260°C © 2016 Littelfuse, Inc. Specifications are subject to change without notice. Revised: 05/10/16 Surface Mount Fuses Nano2® > 600VDC > Fast-Acting Fuse > 485 Series Product Characteristics Material Body: Ceramic Cap: Silver Plated Brass Product Marking Body: Brand Logo, Current Rating Operating Temperature -55˚C to 125˚C with proper derating Moisture Sensitivity Level Level 1 J-STD-020 Solderability MIL-STD-202, Method 208 Insulation Resistance (after Opening) MIL-STD-202, Method 302, Test Condition A (10,000 ohms, Minimum) MIL-STD-202, Method 107, Test Condition B, 5 cycles, -65˚C to 125˚C, 15 minutes @ each extreme MIL-STD-202, Method 213, Test Condition I: Deenergized. 100G’s peak amplitude, sawtooth wave 6ms duration, 3 cycles XYZ+xyz = 18 shocks MIL-STD-202, Method 201: 0.03” amplitude, 10-55 Hz in 1 min. 2 hrs. each XYZ=6hrs Thermal Shock Mechanical Shock Vibratio Moisture Resistance Dimensions MIL-STD-202, Method 106, 10 cycles MIL-STD-202, Method 101, Test Condition B (48hrs) MIL-STD-202, Method 210, Test Condition B (10 sec at 260˚C) Salt Spray Resistance to Soldering Heat Part Numbering System Recommended Pad Layout 0485 3.15 D R SERIES AMP Code* Refer to Electrical Characteristics Table TOP VIEW WAVE SOLDER QUANTITY Code D = 1500 pieces PACKAGING Code R = Tape and Reel END CAP *Example REFLOW SOLDER 3.15 amp is 04853.15DR Packaging Packaging Option Packaging Specification Quantity Ouantity & Option Code 24mm Tape and Reel EIA-RS 481-1, (IEC 286, Part 3 1500 DR © 2016 Littelfuse, Inc. Specifications are subject to change without notice. Revised: 05/10/16