476 LITTELFUSE

Document overview

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Technical content

Features

Applications

Agency Agency File Number Ampere Range E10480 1A - 15A Electrical Characteristics for Series % of Ampere Rating Ampere Rating Opening Time 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

  • LED Lighting
  • LCD/LED TVs
  • Power Supply Units
  • White Goods 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.
  • Small 2410 Footprint
  • 250V Voltage Rating (1A to 5A)
  • High Interrupting Ratings
  • Fast-Acting
  • RoHS Compliant and Halogen-Free
  • Designed in accordance with IEC 60127-4 Universal Modular Fuse requirement
  • Wide Operating temperature range of -55°C to 125°C
  • IEC 61000-4-5 2 ed. Surge Immunity Test Compliant (1 .2 x 50us/8x20us combination wave 500V/250A for <25W Lamp Category) – 3A and above ampere rating only

Description

(A) Amp Code Max Voltage Rating (V) Interrupting Rating Nominal Cold Resistance (Ohms) Nominal Melting I2t (A2 sec.) Agency Approvals 1. 0 0 001 250V 100A @ 250VAC 300A @ 125VDC 10kA @ 86VDC 0.1575 0.193 x 1 .25 1 .25 250V 0.122 0.276 x 1 .60 01. 6 250V 0.0825 0.620 x 2.00 002 250V 0.0448 0.530 x 2.50 02.5 250V 0.0363 0.910 x 3.00 003 250V 0.0277 1 .660 x 3.50 03.5 250V 0.0234 2.356 x 4.00 004 250V 0.01839 2.820 x 5.00 005 250V 0.0157 4.000 x 6.30 06.3 125V 100A@125VAC 300A@125VDC 10kA@86VDC 0.0126 7 .500 x 7. 0 0 007 125V 0.0116 7 .800 x 8.00 008 125V 0.0112 9.757 x 10.0 010 125V 0.0096 14.879 x 12.0 012 125V 0.006 20.635 x 15.0 015 125V 0.0045 61 .286 x Electrical Characteristic 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. I 2t 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. Application testing is strongly recommended.

© 2016 Littelfuse, Inc. Specifications are subject to change without notice. Revised: 05/09/16 Surface Mount Fuses NANO2® Fuse > 250V > Fast Acting > 476 Series Average Time Current CurvesT emperature Rerating Curve 100 1 10 TIME IN SECONDS CURRENT IN AMPERES 3.5A 1.25A 0.1 0.01 0.001 100 1000 2.5A 1.6A 1000 6.3A 8A10A 12A 15A NOTE: Derating depicted in this curve is in addition to the standard derating of 25% for continuous operation. Time Temperature TP TL TS(max) TS(min) tP tL tS time to peak temperature (t 25ºC to peak) Ramp-down Ramp-up Preheat Critical Zone TL to TP Soldering Parameters Reflow Condition Pb – free assembly Pre Heat - 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 Peak Temperature (TP) 260+0/-5 °C Time within 5°C of actual peak Temperature (t p) 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

© 2016 Littelfuse, Inc. Specifications are subject to change without notice. Revised: 05/09/16 Surface Mount Fuses NANO2® Fuse > 250V > Fast Acting > 476 Series 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 Dimensions Part Numbering System 6.10 ± .20 (.240") 1 .96 (.077") 6.86 (.270") Recommended Pad Layout 1 .45 (.057") 2.69 ± .25 (.106") 2.69 ± .25 (.106") 2.95 (.116") 3.15 (.124") 0476 015. M R SN Series Packaging Code R = Tape and Reel Amp Code* Refer to Amp Code column of Electrical Characteristics Table Quantity Code M = 1000 pieces SN — Sn-dipped Caps S — For 15A only - Gold Plated Caps with 10kA@86VDC IR 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) Product Characteristics 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)