Surface Mount Fuses NANO2® Fuse > 250V > Fast Acting > 476 Series 476 Series Fuse RoHS Description The 476 Series is a family of 250V rated fuses with a very small 2410 footprint. It is the smallest SMD fuse with this high voltage rating and is designed to mainly serve as primary side circuit protection for compact devices with high voltage requirements. Features • Small 2410 Footprint • Wide Operating temperature range of • 250V Voltage Rating (1A to -55°C to 125°C 5A) • High Interrupting Ratings • IEC 61000-4-5 2 ed. Surge Immunity Test Compliant •Fast-Acting (1.2 x 50us/8x20us • RoHS Compliant and combination wave Halogen-Free 500V/250A for <25W Lamp Category) – 3A and • Designed in accordance above ampere rating only with IEC 60127-4 Universal Agency Approvals Agency Agency File Number Ampere Range E10480 1A - 15A Pending 1A - 5A Pending 1A - 5A Modular Fuse requirement Electrical Characteristics for Series Applications • LED Lighting • LCD/LED TVs • Power Supply Units • % of Ampere Rating Ampere Rating Opening Time White Goods 100% 1A - 15A 4 Hour, Minimum 125% 1A - 5A 1 Hour, Minimum 200% 1A - 15A 120 Sec., Maximum 1000% 1A - 5A 0.001 Sec., Min; 0.01 Sec., Max Electrical Characteristic Ampere Rating (A) Amp Code Max Voltage Rating (V) Interrupting Rating Nominal Cold Resistance (Ohms) Nominal Melting I2t (A2 sec.) Agency Approvals 1.00 001 250V 0.1575 0.193 x P P 1.25 1.25 250V 0.122 0.276 x P P 1.60 01.6 250V 0.0825 0.620 x P P 2.00 002 250V 0.0448 0.530 x P P 2.50 02.5 250V 0.0363 0.910 x P P 3.00 003 250V 0.0277 1.660 x P P 3.50 03.5 250V 0.0234 2.356 x P P 4.00 004 250V 0.01839 2.820 x P P 5.00 005 250V 0.0157 4.000 x P P 6.30 06.3 125V 0.0126 7.500 x 0.0116 7.800 x 0.0112 9.757 x 0.0096 14.879 x 0.006 20.635 x 0.0045 61.286 x 7.00 007 125V 8.00 008 125V 10.0 010 125V 12.0 012 125V 15.0 015 125V 100A @ 250VAC 300A @ 125VDC 10kA @ 86VDC 100A@125VAC 300A@125VDC 10kA@86VDC Notes: 1. Cold resistance measured at less than 10% of rated current at 25°C 2. Agency Approval Table Key: X = Approved or Certified, P=Pending and Blank=Not Approved. 3. I2t values stated for 8msec opening time. 4. For 15A rating with 10kA@86VDC IR, please use suffix “S” for ordering. Refer to Part Numbering System for reference. © 2015 Littelfuse, Inc. Specifications are subject to change without notice. Application testing is strongly recommended. Revised: 07/17/15 Surface Mount Fuses NANO2® Fuse > 250V > Fast Acting > 476 Series Temperature Rerating Curve 15A 2.5A 3A 3.5A 4A 5A 6.3A 7A 8A 10A 12A 1A 1.25A 1.6A Average Time Current Curves 1000 100 TIME IN SECONDS 10 1 0.1 NOTE: Derating depicted in this curve is in addition to the standard derating of 25% for continuous operation. 0.01 0.001 1 10 100 1000 CURRENT IN AMPERES Soldering Parameters Pre Heat Pb – free assembly - Temperature Min (Ts(min)) 150°C - Temperature Max (Ts(max)) 200°C - Time (Min to Max) (ts) 60 – 180 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 – 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 © 2015 Littelfuse, Inc. Specifications are subject to change without notice. Revised: 07/17/15 Surface Mount Fuses NANO2® Fuse > 250V > Fast Acting > 476 Series Product Characteristics Materials Body: Ceramic Cap: Silver Plated Brass/Sn Dipped Silver Plated Brass/Gold Plated Brass Product Marking Body: Brand Logo, Current Rating Operating Temperature –55ºC to +125ºC Moisture Sensitivity Level Level 1 Solderability MIL-STD-202, Method 208 Insulation Resistance (after opening) IEC 60127-4 (0.1Mohm Min) 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: De-energized. 100G’s peak amplitude, sawtooth wave 6ms duration, 3 cycles XYZ+xyz = 18 shocks Vibration MIL-STD-202, Method 201: 0.03” amplitude, 10-55 Hz in 1 min. 2 hrs. each XYZ = 6hrs (10- 55 Hz) Moisture Resistance MIL-STD-202, Method 106 10 cycles Salt Spray MIL-STD-202, Method 101 Test Condition B (48 hrs) Resistance to Soldering Heat MIL-STD-202, Method 210, Test Condition B (10 sec at 260°C) Part Numbering System Dimensions 2.69 ± .25 (.106") 6.10 ± .20 (.240") 0476 015. M R SN Series 15 Amp Code* 1.45 (.057") Refer to Amp Code column of Electrical Characteristics Table 2.69 ± .25 (.106") Quantity Code M = 1000 pieces 1.96 (.077") 2.95 (.116") Packaging Code R = Tape and Reel 3.15 (.124") SN — Sn-dipped Caps S — For 15A only - Gold Plated Caps with 10kA@86VDC IR 6.86 (.270") Recommended Pad Layout Packaging Packaging Option Packaging Specification Quantity Quantity & Packaging Code Reel Size 12mm Tape and Reel EIA-RS-481-2 (IEC 286 part 3) 1000 MR N/A © 2015 Littelfuse, Inc. Specifications are subject to change without notice. Revised: 07/17/15