Surface Mount Fuses NANO2® Fuse > Very Fast-Acting > 448 Series 448 Series Fuse RoHS Pb PES Description The lead-free Nano2® SMF Fuse is a very small, square surface mount fuse that is RoHS compliant, Halogen Free and 100% lead-free. This product is fully compatible with lead-free solder alloys and higher temperature profiles associated with lead-free assembly. Features • RoHS compliant, Lead- • Wide operating free and Halogen Free temperature range • Very fast-acting • Low temperature Agency Approvals de-rating • Small size AGENCY AGENCY FILE NUMBER AMPERE RANGE • Wide range of current rating available (0.062A E10480 0.062A - 15A to 15A) 29862 0.062A - 15A Applications NBK030205-E10480A 1A - 1.6A PS E NBK030205-E10480B 2A - 5A • Notebook PC • Storage system • LCD/PDP TV • Telecom system Electrical Characteristics for Series • LCD monitor • Wireless basestation • LCD/PDP panel • White goods % of Ampere Ampere Rating Opening Time Rating • LCD backlight inverter • Game console 100% 1/16 –15 4 hours, Minimum • Portable DVD player • Office Automation 1/16 –10 5 sec., Maximum equipment 200% • Power supply 12 –15 20 sec., Maximum • Battery charging circuit • Networking protection • PC server • Industrial equipment • Cooling fan system Additional Information Datasheet Resources Samples © 2017 Littelfuse, Inc. Specifications are subject to change without notice.Application testing is strongly recommended. Revised: 12/14/17

Surface Mount Fuses NANO2® Fuse > Very Fast-Acting > 448 Series Electrical Specifications by Item Max Agency Approvals Ampere Nominal Cold Nominal Voltage Interrupting Rating Amp Code Resistance Melting Rating Rating PS (A) (Ohms) I2t (A2sec) E (V) 0.062 .062 125 5.50 0.00023 x x 0.080 .080 125 4.42 0.00043 x x 0.100 .100 125 2.90 0.00082 x x 0.125 .125 125 2.58 0.00130 x x 0.160 .160 125 1.76 0.00280 x x 0.200 .200 125 1.65 0.00380 x x 0.250 .250 125 0.95 0.01520 x x 0.315 .315 125 0.7015 0.02650 x x 0.375 .375 125 0.6155 0.02400 x x 0.400 .400 125 0.4895 0.04160 x x 0.500 .500 125 0.3800 0.10000 x x 0.630 .630 125 0.3125 0.121 x x 0.750 .750 125 0.2290 0.206 x x 50A @125VAC/VDC 0.800 .800 125 0.1907 0.272 x x 300A @32 VDC 1.00 001. 125 0.08630 0.441 x x x PSE: 100A @100VAC 1.25 1.25 125 0.06619 0.900 x x x 1.50 01.5 125 0.06514 0.900 x x x 1.60 01.6 125 0.06261 1.122 x x x 2.00 002. 125 0.03529 0.812 x x x 2.50 02.5 125 0.02934 1.156 x x x 3.00 003. 125 0.02445 1.720 x x x 3.15 3.15 125 0.02300 1.810 x x x 3.50 03.5 125 0.02100 2.300 x x x 4.00 004. 125 0.01577 3.970 x x x 5.00 005. 125 0.01531 4.490 x x x 6.30 06.3 125 0.01044 12.10 x x x 7.00 007. 125 0.00900 13.92 x x x 8.00 008. 125 0.00780 18.33 x x x 35A @125 VAC 50A @125 VDC 10.00 010. 125 300A @32 VDC 0.00700 28.00 x x x PSE: 100A @100VAC 12.00 012. 85 0.00533 47.59 x x 50A @65 VAC/VDC 300A @24 VDC 15.00 015. 85 0.00394 78.4 x x 200A @85 VDC Notes: - l2t calculated at 8ms. - Resistance is measured at 10% of rated current, 25ºC © 2017 Littelfuse, Inc. Specifications are subject to change without notice. Revised: 12/14/17

Surface Mount Fuses NANO2® Fuse > Very Fast-Acting > 448 Series Temperature Re-rating Curve Average Time Cur4r48e SEnRItES CNAuNOr LvEAeD sFREE VERY FAST ACTING FUSE .062 A.080 A.100 A.125 A.160 A.200 A.250 A.315 A.375 A.40 A.50 A.63 A.75 A.80 A1.00 A1.25 A1.50 A1.60 A2.00 A2.50 A3.00 A3.15 A3.50 A4.00 A5.00 A6.30 A7 A8 A10 A12 A15 A 100 10 S D N 1 O C E S N E I M TI 0.1 Note: 1. Rerating depicted in this curve is in addition to the standard derating of 25% for continuous operation. 0.01 0.001 0.1 1 10 100 1000 CURRENT IN AMPS 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 - Temperature Max (T ) 200°C L t s(max) eT L - Time (Min to Max) (t) 60 – 120 secs ru S(max) s ta Average ramp up rate (Liquidus Temp re Ramp-down 5°C/second max. p Preheat (T) to peak mT L S(min) e t T to T - Ramp-up Rate 5°C/second max. T S S(max) L - Temperature (T) (Liquidus) 217°C Reflow L 25 - Temperature (tL) 60 – 90 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 20 – 40 seconds Temperature (t ) p Ramp-down Rate 5°C/second max. Time 25°C to peak Temperature (T ) 8 minutes max. P Do not exceed 260°C 260°C Peak Wave Soldering Parameters Temperature, 10 seconds max. © 2017 Littelfuse, Inc. Specifications are subject to change without notice. Revised: 12/14/17

Surface Mount Fuses NANO2® Fuse > Very Fast-Acting > 448 Series Product Characteristics Body: Ceramic MIL-STD-202, Method 107, Test Materials Terminations: Gold-plated Caps Thermal Shock Condition B, 5 cycles, -65oC to 125oC, 15 minutes @ each extreme Product Marking Brand, Amperage Rating MIL-STD-202, Method 213, Test I: Operating Deenergized. 100G’s pk amplitude, Temperature -55oC to 125oC Mechanical Shock sawtooth wave 6ms duration, 3 cycles XYZ+xyz = 18 shocks Moisture Sensitivity Level 1, J-STD-020 MIL-STD-202, Method 201: 0.03” Level Vibration amplitude, 10-55 Hz in 1 min. 2hrs Solderability MIL-STD-202, Method 208 each XYZ=6hrs Insulation Moisture Resistance MIL-STD-202, Method 106, 10 cycles MIL-STD-202, Method 302, Test Condition Resistance (after A (10,000 ohms minimum) MIL-STD-202, Method 101, Test Opening) Salt Spray Condition B (48hrs) Resistance to Soldering MIL-STD-202, Method 210, Test Heat condition B (10 sec at 260oC) Dimensions Part Numbering System 6.10 ± .20 2.69 ± .25 0448 001. M R (.240") (.106") 7 A F 2.69 ± .25 SERIES (.106") AMP Code* 1.45 Refer to Electrical (.057") Characteristics table QUANTITY Code 6.86 (.270") M = 1000 pcs 3.15 PACKAGING Code (.124") R = Tape and Reel *Example: 2.95 1.5 amp product is 044801.5MR 1.96 (.116") (1 amp product shown above). (.077") Recommended pad layout Packaging Quantity & Packaging Option Packaging Specification Quantity Packaging Code 12mm Tape and Reel EIA RS-481-1 (IEC 286, part 3) 1000 MR 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. © 2017 Littelfuse, Inc. Specifications are subject to change without notice. Revised: 12/14/17