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 fuse 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. Agency Approvals Features AGENCY AGENCY FILE NUMBER AMPERE RANGE • Operating Temperature • Suitable for both leaded from -55ºC to 150ºC and lead-free reflow / E10480 2A - 6A wave soldering • 100% Lead-free, Halogen- Free and RoHS compliant • Ultra high I²t values 29862 2A - 6A Electrical Characteristics Applications % of Ampere • Handheld Electronics • Hard Disk Drives Ampere Rating Opening Time at 25ºC Rating • LCD Displays • SD Memory Cards 100% 2A - 6A 4 Hours Minimum • Battery Packs 350% 2A - 6A 5 Seconds Maximum Electrical Specifications by Item Agency Approvals Ampere Nominal Nominal Nominal Voltage Nominal Power Amp Max. Voltage Interrupting Rating Resistance Melting I2t Drop At Rated Dissipation At Code Rating (V) Rating (A) (Ohms)2 (A2Sec.)3 Current (V)4 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 50 A @ 32 VDC 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 Notes: 1. DC Interrupting Rating tested at rated voltage with time constant < 0.8 msecs. 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 2. Nominal Resistance measured with < 10% rated current. Re-rating Curve”for additional re-rating information. 3. Nominal Melting I²t measured at 1 msec. opening time. Devices designed to be mounted with marking code facing up. 4. Nominal Voltage Drop measured at rated current after temperature has stabilized. Additional Information Datasheet Resources Samples © 2018 Littelfuse, Inc. Specifications are subject to change without nSoptieccei.fi cAaptpiolincsa taioren steusbtjiencgt itso s ctrhoannggley rweicthoomumt neontdiceed.. Revised: 02/15/18

Surface Mount Fuses Ceramic Fuse > 441 Series Temperature Re-rating Curve Average Time Current Curves A A 2A 2.53A3.54A5A6A 100 140 G120 N ATI 10 R100 F O T N80 E C R E S 1 P60 ND O C E S 40 N -65 -45 -25 -5 15 35 55 75 95 115 135 155 ME I TEMPERATURE (°C) TI 0.1 Note: 1. Re-rating depicted in this curve is in addition to the standard re-rating of 20% for 0.01 continuous operation. For continuous operation at 75 degrees celsius, the fuse should be rerated as follows: I = (0.80)(0.85)I = (0.68)I RAT RAT 0.001 1 10 100 CURRENT IN AMPERES Soldering Parameters Reflow Condition Pb – free assembly tP T P Critical Zone - Temperature Min (T ) 150°C Ramp-up TL to TP s(min) T Pre Heat -- TTeimmep e(Mraitnu rteo MMaaxx )( T(ts()max)) 2600 0–° C180 seconds eruTS(maxL) tL s ta Average Ramp-up Rate (Liquidus Temp re Ramp-down 3°C/second max. p Preheat (T) to peak) mT L S(min) T to T - Ramp-up Rate 5°C/second max. eT tS S(max) L - Temperature (T) (Liquidus) 217°C Reflow L 25 - Temperature (tL) 60 – 150 seconds time (tto 2 p5eºCak t ote pmepaekr)ature Time Peak Temperature (T ) 260+0/-5 °C P Time within 5°C of actual peak 10 – 30 seconds Temperature (t ) p Ramp-down Rate 6°C/second max. Time 25°C to peak Temperature (T ) 8 minutes max. P Do not exceed 260°C Wave Soldering 260°C, 10 seconds max. © 2018 Littelfuse, Inc. Specifications are subject to change without notice. Revised: 02/15/18

Surface Mount Fuses Ceramic Fuse > 441 Series Product Characteristics Moisture Resistance MIL-STD-202, Method 106 Body: Advanced Ceramic Materials Terminations: Ag / Ni / Sn (100% Lead-free) MIL-STD-202, Method 107, Thermal Shock Element Cover Coating: Lead-free Glass Condition B MIL-STD-202, Method 213, Moisture Mechanical Shock Condition A IPC/JEDEC J-STD-020, Level 1 Sensitivity Level Vibration MIL-STD-202, Method 201 Solderability IPC/ECA/JEDEC J-STD-002, Condition C Vibration, MIL-STD-202, Method 204, High Frequency Condition D Humidity MIL-STD-202, Method 103, Conditions D Dissolution of IPC/ECA/JEDEC J-STD-002 Metallization Resistance to MIL-STD-202, Method 210, Condition B Solder Heat Terminal Strength IEC 60127-4 Dimensions Part Marking System Amp Code Marking Code 0.530 +/- 0.150 1.54 +/- 0.150 002. N [0.021 +/- 0.006] [0.061 +/- 0.006] 02.5 O 003. P 0.850 +/- 0.150 [0.033 +/- 0.006] 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 AMP CODE R = Reel Pack 0.432 +/- 0.150 [0.017 +/- 0.006] See Amp Code in Electrical Specification section QUANTITY CODE 0.60 0.74 W = 3000 pcs [0.024] [0.029] Packaging 1.00 [0.039] Packaging Packaging Quantity & Quantity Option Specification Packaging Code 1.94 [0.076] 8mm Tape and EIA-481, IEC 3000 WR Reel 60286, Part 3 Disclaimer Notice - Littelfuse products are not designed for, and shall not be used for, any purpose (including, without limitation, automotive, military, aerospace, medical, life-saving, life-sustaining or nuclear facility applications, devices intended for surgical implant into the body, or any other application in which the failure or lack of desired operation of the product may result in personal injury, death, or property damage) other than those expressly set forth in applicable Littelfuse product documentation. Warranties granted by Littelfuse shall be deemed void for products used for any purpose not expressly set forth in applicable Littelfuse documentation. Littelfuse shall not be liable for any claims or damages arising out of products used in applications not expressly intended by Littelfuse as set forth in applicable Littelfuse documentation. The sale and use of Littelfuse products is subject to Littelfuse Terms and Conditions of Sale, unless otherwise agreed by Littelfuse. Information furnished is believed to be accurate and reliable. However, users should independently evaluate the suitability of and test each product selected for their own applications. Littelfuse products are not designed for, and may not be used in, all applications. Read complete Disclaimer Notice at www.littelfuse.com/disclaimer-electronics. © 2018 Littelfuse, Inc. Specifications are subject to change without notice. Revised: 02/15/18