Surface Mount Fuses NANO2® > 600VDC > Fast-Acting 485 Series 485 Series Fuse Description Features Agency Approvals AGENCY AGENCY FILE NUMBER AMPERE RANGE E10480 500mA – 3.15A Electrical Characteristics for Series % of Ampere Rating 100% 4 hours, Minimum 60 Seconds, Maximum • Relatively high breaking capacity at 100A. • Fully compatible with lead-free solder alloys and higher temperature profiles associated with lead-free assembly. • Rating - 0.5 - 3.15 Amperes. • RoHS compliant / Halogen Free Applications • PC server and Telecom systems Opening Time at 25ºC 200% • Fast Acting / Surface mount high fuse for high voltage (up to 600VDC) applications. • 380VDC server/ lighting in data center • LCD TV inverter boards DC input protection • Uniterruptible Power Supply (UPS) / 3-Phase Power Supplies Electrical Specifications by Item Ampere Max. Amp Rating Voltage Code (A) Rating (V) 0.5 1 1.5 2 2.5 3.15 .500 1 1.5 2 2.5 3.15 600 600 600 600 600 600 Interrupting Rating Nominal Cold Resistance (Ohms) Nominal Melting I2t (A2Sec.) 100A @ 250V AC 100A @ 600V DC 0.807 0.264 0.123 0.0744 0.0583 0.0395 0.0354 0.3044 0.3917 0.8962 1.4921 3.304 Agency Approvals P x x x x x Notes: 1. Cold resistance measured at less than 10% of rated current at 23°CC 2.Agency Approval Table Key. X=Approved or Certified, P=Pending and Blank=Not Approved. 3.I²t values stated for 8 msec opening time. © 2012 Littelfuse, Inc. Specifications are subject to change without notice. Please refer to www.littelfuse.com for current information. 485 Series Revised: July 30, 2012 485 Series 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 solders alloys and higher temperature profiles associated with leadfree assembly. Mount Fuses IntroductionSurface to Circuit Protection Transientology NANO2® > 600VDC > Fast-Acting 485 Series 2.5A 3.15A 2A 1A 1.5A Average Time Current Curves .500A Temperature Rerating Curve 100 10 TIME IN SECONDS 1 0.1 0.01 0.001 0.1 1 10 100 1000 CURRENT IN AMPERE 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 – 120 seconds 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 – 90 seconds Peak Temperature (TP) 250+0/-5 °C Time within 5°C of actual peak Temperature (tp) 20 – 40 seconds Ramp-down Rate 5°C/second max. Time 25°C to peak Temperature (TP) 8 minutes max. Do not exceed 260°C 485 Series tP TP Critical Zone TL to TP Ramp-up TL TS(max) Temperature Reflow Condition tL Ramp-down TS(min) 25 Preheat tS time to peak temperature (t 25ºC to peak) Time © 2012 Littelfuse, Inc. Specifications are subject to change without notice. Please refer to www.littelfuse.com for current information. Surface Mount Fuses NANO2® > 600VDC > Fast-Acting 485 Series Product Characteristics Materials Body: Ceramic Cap: Silver Plated Brass Thermal Shock MIL -STD-202, Method 107, Test Condition B, 5 cycles, -65°C to 125°C, 15 minutes @ each extreme Mechanical Shock MIL -STD-202, Method 213, Test Condition I: Deenergized. 100G’s peak amplitude, sawtooth wave 6ms duration, 3 cycles XYZ+xyz=18 shocks Vibration MIL -STD-202, Method 201:0.03” amplitude,10-55Hz in 1 min. 2hrs. each XYZ=6hrs Body: Brand Logo, Current Rating Operating Temperature -55°C to 125°C with proper derating Mositure Sensitivity Level Level 1 J-STD-020C Moisture Resistance MIL -STD-202, Method 106, 10 cycles Solderability MIL -STD-202, Method 208 Salt Spray MIL - STD-202, Method 101, Test Condition B (48hrs) Insulation Resistance (after Opening) MIL -STD-202, Method 302, Test Condition A (10,000 ohms, Minimum) Resistance to Soldering Heat MIL - STD-202, Method 210, Test Condition B (10 sec at 260°C) Dimensions 485 Series Product Marking Part Numbering System 0485 3.15 D R SERIES AMP Code * Refer to Electrical Charateristics Table QUANTITY Code D= 1500 pieces PACKAGING Code R = Tape and Reel *Example 3.15 amp is 04853.15DR Packaging Packaging Option Packaging Specification Quantity Quantity & Option Code 24mm Tape and Reel EIA-RS 481 - 1, IEC 286, Part 3 1500 DR © 2012 Littelfuse, Inc. Specifications are subject to change without notice. Please refer to www.littelfuse.com for current information. 485 Series