0440003.WR

Fuse Datasheet 440 Series 1206 High I2 t Fuse RoHS Pb Description The 440 Series is a 100% RoHS Compliant, lead-free and halogenfree fuse series designed specifically to provide over-current protection to circuits that operate under 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 and Benefits ■ Ultra high I2t values ■ Operating Temperature from -55ºC to +150ºC ■ Recognized to UL/CSA/NMX 248-1 and UL/CSA/NMX 248-14 ■ RoHS compliant, lead-free and halogen-free ■ Suitable for both leaded and lead-free reflow / wave soldering Additional Information Applications Resources Accessories ■ LCD Displays ■ Scanners ■ Servers ■ Data Modems ■ Notebook Computers ■ Hard Disk Drives ■ Printers Samples Electrical Characteristics for Series % of Ampere Rating Ampere Rating Agency Approvals Agency Opening Time at 25ºC Agency File Number Ampere Range 100% 0.25A - 8A 4 hours, Minimum E10480 0.25A - 8A 350% 0.25A - 8A 5 secs., Maximum 29862 0.25A - 8A Electrical Specifications by Item Ampere Rating (A) Amp Code Max. Voltage Rating (V) 0.250 0.375 0.500 0.750 1.00 1.25 1.50 1.75 2.00 2.50 3.00 3.50 4.00 5.00 7.00 8.00 .250 .375 .500 .750 001. 1.25 01.5 1.75 002. 02.5 003. 03.5 004. 005. 007. 008. 125 125 63 63 50 50 50 32 32 32 32 32 32 32 32 32 Interrupting Rating (AC/DC)1 50 A @ 125 V AC/DC 50 A @ 63 V AC/DC 50 A @ 63 V AC/DC 50 A @ 50 V DC 50 A @ 50 V AC 50 A @ 32 V AC/DC Nominal Resistance (Ohms)2 Nominal Melting I2t (A2Sec.)3 Nominal Voltage Drop At Rated Current (V)4 Nominal Power Dissipation At Rated Current (W) 2.140 1.216 0.8140 0.4624 0.3096 0.2265 0.1759 0.0450 0.0385 0.02850 0.02252 0.01845 0.01553 0.0120 0.00753 0.00634 0.00649 0.01455 0.02642 0.09312 0.21054 0.379 0.50652 0.3312 0.4326 0.8191 1.232 1.789 2.601 4.761 8.464 12.95 0.5260 0.4993 0.4831 0.3983 0.3457 0.3240 0.3215 0.0777 0.0792 0.0747 0.0742 0.0757 0.0709 0.0654 0.0696 0.0655 0.132 0.187 0.242 0.299 0.346 0.405 0.482 0.136 0.158 0.187 0.223 0.265 0.284 0.327 0.487 0.524 Notes: 1. AC Interrupting Rating tested at rated voltage with unity power factor. DC Interrupting Rating tested at rated voltage with time constant < 0.8 msec. 2. Nominal Resistance measured with < 10% rated current. 3. Contact Littelfuse if application transient surges are less than 1 ms. 4. Nominal Voltage Drop measured at rated current after temperature has stabilized. Agency Approvals X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X Devices designed to carry rated current for 4 hours minimum. It is recommended that devices be operated continuously at no more than 80% rated current. See “Temperature Derating Curve”for additional derating information. Devices designed to be mounted with marking code facing up. 1 © 2020 Littelfuse, Inc. Specifications are subject to change without notice. Revised: GD. 12/16/20 Fuse Datasheet 440 Series 1206 High I2 t Fuse Temperature Rerating Curve Average Time Current Curves 140 120 100 10 80 60 TIME IN SECONDS PERCENT OF RATING 100 40 -65 -45 -25 -5 15 35 55 75 95 115 135 155 TEMPERATURE (°C) Note: 1 0.1 1. Rerating depicted in this curve is in addition to the standard derating of 20% for continuous operation. Example: For continuous operation at 75 degrees celsius, the fuse should be derated as follows: I = (0.80)(0.85)In = (0.68)In 0.01 0.001 0.1 1.0 10.0 100.0 1000. 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 Peak Temperature (TP) 260+0/-5 °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 tP TP Critical Zone TL to TP Ramp-up TL Temperature (T) Reflow Condition tL T S(max) Ramp-down T S(min) tS Preheat 25ºC t 25ºC to Peak Time (t) 260°C, 10 seconds max. 2 © 2020 Littelfuse, Inc. Specifications are subject to change without notice. Revised: GD. 12/16/20 Fuse Datasheet 440 Series 1206 High I2 t Fuse Product Characteristics Materials Body: Advanced Ceramic Terminations: Ag / Ni / Sn (100% Lead-free) Element Cover Coating: Lead-free Glass Moisture Sensitivity Level IPC/JEDEC J-STD-020, Level 1 Solderability IPC/ECA/JEDEC J-STD-002, Condition C Humidity Test MIL-STD-202, Method 103, Conditions D Resistance to Solder Heat MIL-STD-202, Method 210, Condition B 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, Condition D Terminal Strength IEC 60127-4 Dimensions mm (inches) Part Marking System 3.200 ± .1778 [.126 ± .007] X 1.000 [.039] 1.63 + .10/ -.20 [.064 + .004/ -.008] Amp Code Marking Code Amp Code Marking Code .250 .375 .500 .750 001. 1.25 01.5 1.75 D E F G H J K L 002. 02.5 003. 03.5 004. 005. 007. 008. N O P R S T W X Part Numbering System .8179 +.046/ -.076 [.0322 +.0018/ -.003] 0440 008. W R TERMINATION SERIES AMP CODE QUANTITY CODE W = 3000 pcs 0.520 ± .200 [.020 ± .008] PACKING CODE R = Reel Pack 1.000 [.039] 1.500 [.059] Packaging 1.800 [.071] 3.500 [.138] Packaging Option Packaging Specification Quantity Quantity & Packaging Code 8mm Tape and Reel EIA-481, IEC 60286, Part 3 3000 WR 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. 3 © 2020 Littelfuse, Inc. Specifications are subject to change without notice. Revised: GD. 12/16/20