0441005.WR

Surface Mount Fuses Ceramic Fuse > 441 Series 441 Series – 0603 High I2t Fuse 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. Agency Approvals AGENCY AGENCY FILE NUMBER E10480 LR29862 AMPERE RANGE 2A - 6A 2A - 6A Features from -55ºC to 150ºC RoHS compliant and lead-free reflow / wave soldering Electrical Characteristics % of Ampere Rating 100% 350% Ampere Rating 2A - 6A 2A - 6A Opening Time at 25ºC 4 Hours Minimum 5 Seconds Maximum Applications Electrical Specifications by Item Ampere Rating (A) 2 2.5 3 3.5 4 5 6 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 Rerating Curve”for additional rerating information. Devices designed to be mounted with marking code facing up. Amp Max. Voltage Code Rating (V) 002. 02.5 003. 03.5 004. 005. 006. 32 32 32 32 32 32 32 Interrupting Rating Nominal Nominal Resistance Melting I2t (A2Sec.)3 (Ohms)2 0.0302 0.0200 0.0158 0.3103 0.5520 0.8165 0.9438 1.2659 1.6287 2.6049 Nominal Voltage Drop At Rated Current (V)4 0.0551 0.0534 0.0531 0.0468 0.0475 0.0472 0.0464 Nominal Power Agency Approvals Dissipation At Rated Current (W) 0.110 0.134 0.159 0.164 0.190 0.236 0.278 X X X X X X X X X X X X X X 50 A @ 32 VDC 0.0117 0.0097 0.0073 0.0056 © 2009 Littelfuse, Inc. Specifications are subject to change without notice. Please refer to www.littelfuse.com/series/441.html for current information. 1 Revised: June 15, 2010 441 Series 441 Series S Introduction to Circuit Protection Introduction urface Mount Fuses Transientology Ceramic Fuse > 441 Series Temperature Rerating Curve Average Time Current Curves 2.5A 3A 3.5A 4A 5A 6A 10 CURRENT IN AMPERES 140 100 PERCENT OF RATING 120 10 100 80 TIME IN SECONDS 1 60 40 -65 -45 -25 -5 15 35 55 75 95 115 135 155 TEMPERATURE (°C) 0.1 Note: 1. Rerating depicted in this curve is in addition to the standard rerating of 20% for continuous operation. 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 1 100 0.01 Soldering Parameters Reflow Condition - Temperature Min (Ts(min)) Pre Heat - Temperature Max (Ts(max)) - Time (Min to Max) (ts) Average Ramp-up Rate (Liquidus Temp (TL) to peak) TS(max) to TL - Ramp-up Rate Reflow - Temperature (TL) (Liquidus) - Temperature (tL) 260+0/-5 °C 3°C/second max. 5°C/second max. 217°C 150°C 2A TP Ramp-up tP Critical Zone TL to TP Temperature 200°C TL TS(max) Preheat tL Ramp-down TS(min) tS 25 time to peak temperature (t 25ºC to peak) Time Peak Temperature (TP) Time within 5°C of actual peak Temperature (tp) Ramp-down Rate Time 25°C to peak Temperature (TP) Do not exceed 6°C/second max. 8 minutes max. 260°C Wave Soldering 260°C, 10 seconds max. 441 Series 2 © 2009 Littelfuse, Inc. Specifications are subject to change without notice. Please refer to www.littelfuse.com/series/441.html for current information. 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 Moisture Resistance Thermal Shock Mechanical Shock Vibration Vibration, High Frequency Dissolution of Metallization Terminal Strength MIL -STD-202, Method 106G MIL -STD-202, Method 107G, Materials Moisture Sensitivity Level Solderability Humidity ESD Immunity Resistance to Solder Heat Condition A MIL -STD-202, Method 201A MIL -STD-202, Method 204D, Condition D Condition D Dimensions Part Marking System Amp Code Marking Code N O P R S T U 0.530 +/- 0.150 [0.021 +/- 0.006] 1.54 +/- 0.150 [0.061 +/- 0.006] 002. 02.5 003. 03.5 004. 005. 006. 0.850 +/- 0.150 [0.033 +/- 0.006] 0.502 +/- 0.080 [0.020 +/- 0.003] Part Numbering System 0441 005. W R SERIES PACKING CODE 0.432 +/- 0.150 [0.017 +/- 0.006] AMP CODE QUANTITY CODE 0.74 [0.029] 0.60 [0.024] W = 3000 pcs 1.00 [0.039] 1.94 [0.076] Packaging Packaging Option 8mm Tape and Reel Packaging Specification Quantity 3000 Quantity & Packaging Code WR © 2009 Littelfuse, Inc. Specifications are subject to change without notice. Please refer to www.littelfuse.com/series/441.html for current information. 3 441 Series 441 Series Introduction Introduction to Circuit Protection Transientology 4 © 2009 Littelfuse, Inc. Specifications are subject to change without notice.