Surface Mount Fuses Ceramic Fuse > 441 Series 441 Series – 0603 High I2t Fuse RoHS Pb Description This 100% Lead-free, RoHS compliant and Halogen-free fuse series has been designed specifically to provide over current protection to circuits that see high working ambient temperatures (up to 150ºC) and high inrush currents. The general design ensures excellent temperature stability and performance reliability. This high I²t fuse series is designed to have ultra high inrush current withstand capability to avoid nuisance fuse open. Features Agency Approvals AGENCY AGENCY FILE NUMBER AMPERE RANGE E10480 2A - 6A 29862 2A - 6A Electrical Characteristics • Operating Temperature from -55ºC to 150ºC • Suitable for both leaded and lead-free reflow / wave soldering • 100% Lead-free, HalogenFree and RoHS compliant • Ultra high I²t values Applications % of Ampere Rating Ampere Rating Opening Time at 25ºC 100% 2A - 6A 4 Hours Minimum 350% 2A - 6A 5 Seconds Maximum • Handheld Electronics • Hard Disk Drives • LCD Displays • SD Memory Cards • Battery Packs Electrical Specifications by Item Ampere Rating (A) Amp Max. Voltage Code Rating (V) Interrupting Rating Nominal Nominal Resistance Melting I2t 2 (A2Sec.)3 (Ohms) Nominal Voltage Drop At Rated Current (V)4 Nominal Power Agency Approvals Dissipation At Rated Current (W) 2 002. 32 0.0302 0.3103 0.0551 0.110 X X 2.5 02.5 32 0.0200 0.5520 0.0534 0.134 X X 3 003. 32 0.0158 0.8165 0.0531 0.159 X X 3.5 03.5 32 0.0117 0.9438 0.0468 0.164 X X 4 004. 32 0.0097 1.2659 0.0475 0.190 X X 5 005. 32 0.0073 1.6287 0.0472 0.236 X X 6 006. 32 0.0056 2.6049 0.0464 0.278 X X 50 A @ 32 VDC Notes: 1. DC Interrupting Rating tested at rated voltage with time constant < 0.8 msecs. 2.Nominal Resistance measured with < 10% rated current. 3.Nominal Melting I²t measured at 1 msec. opening time. 4.Nominal Voltage Drop measured at rated current after temperature has stabilized. Devices designed to carry out rated current for 4 hours minimum. It is recommended that devices be operated continuously at no more than 80% rated current. See “Temperature Re-rating Curve”for additional re-rating information. Devices designed to be mounted with marking code facing up. Additional Information Datasheet Resources Samples © 2015 Littelfuse, Inc. Specifications are subject tostrongly change recommended. without notice. Specifications are subject to change without notice. Application testing is Revised: 05/25/15 Surface Mount Fuses Ceramic Fuse > 441 Series 100 140 120 10 100 80 60 40 -65 -45 -25 -5 15 35 55 75 95 115 135 155 TEMPERATURE (°C) 1 TIME IN SECONDS PERCENT OF RATING 2.5A 3A 3.5A 4A 5A 6A Average Time Current Curves 2A Temperature Re-rating Curve 0.1 Note: 1. Re-rating depicted in this curve is in addition to the standard re-rating of 20% for continuous operation. 0.01 For continuous operation at 75 degrees celsius, the fuse should be rerated as follows: I = (0.80)(0.85)IRAT = (0.68)IRAT 0.001 1 10 100 CURRENT IN AMPERES Soldering Parameters 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) 3°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 °C Time within 5°C of actual peak Temperature (tp) 10 – 30 seconds Ramp-down Rate 6°C/second max. Time 25°C to peak Temperature (TP) 8 minutes max. Do not exceed 260°C Wave Soldering 260°C, 10 seconds max. © 2015 Littelfuse, Inc. Specifications are subject to change without notice. Revised: 05/25/15 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 Surface Mount Fuses Ceramic Fuse > 441 Series Product Characteristics Body: Advanced Ceramic Terminations: Ag / Ni / Sn (100% Lead-free) Element Cover Coating: Lead-free Glass Materials Moisture IPC/JEDEC J-STD-020, Level 1 Sensitivity Level Solderability IPC/ECA/JEDEC J-STD-002, Condition C Humidity MIL-STD-202, Method 103, Conditions D Resistance to Solder Heat MIL-STD-202, Method 210, Condition B Dimensions Moisture Resistance MIL-STD-202, Method 106 Thermal Shock MIL-STD-202, Method 107, Condition B Mechanical Shock MIL-STD-202, Method 213, Condition A Vibration MIL-STD-202, Method 201 Vibration, High Frequency MIL-STD-202, Method 204, Condition D Dissolution of Metallization IPC/ECA/JEDEC J-STD-002 Terminal Strength IEC 60127-4 Part Marking System 0.530 +/- 0.150 [0.021 +/- 0.006] Amp Code Marking Code 002. N 1.54 +/- 0.150 [0.061 +/- 0.006] 0.850 +/- 0.150 [0.033 +/- 0.006] 02.5 O 003. P 03.5 R 004. S 005. T 006. U 0.502 +/- 0.080 [0.020 +/- 0.003] Part Numbering System 0441 005. W R SERIES PACKING CODE R = Reel Pack AMP CODE 0.432 +/- 0.150 [0.017 +/- 0.006] 0.60 [0.024] QUANTITY CODE 0.74 [0.029] W = 3000 pcs 1.00 [0.039] 1.94 [0.076] Packaging Packaging Option Packaging Specification Quantity Quantity & Packaging Code 8mm Tape and Reel EIA-481, IEC 60286, Part 3 3000 WR © 2015 Littelfuse, Inc. Specifications are subject to change without notice. Revised: 05/25/15