Surface Mount Fuses NANO2® Fuse > Very Fast-Acting > 448 Series 448 Series Fuse RoHS PS E Pb 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 Agency Approvals AGENCY PS E • Wide operating temperature range • Very fast acting • Low temperature de-rating • Small size AGENCY FILE NUMBER AMPERE RANGE E10480 0.062A - 15A 29862 0.062A - 15A NBK030205-E10480A NBK030205-E10480B 1A - 1.6A 2A - 5A Electrical Characteristics for Series % of Ampere Rating Ampere Rating Opening Time 100% 1/16 –15 4 hours, Minimum 1/16 –10 5 sec., Maximum 12 –15 20 sec., Maximum 200% • RoHS compliant, Leadfree and Halogen Free • Wide range of current rating available (0.062A to 15A) Applications • Notebook PC • Storage system • LCD/PDP TV • Telecom system • LCD monitor • Wireless basestation • LCD/PDP panel • White goods • LCD backlight inverter • Game console • Portable DVD player • Office Automation equipment • Power supply • Battery charging circuit protection •Networking • PC server • Industrial equipment • Cooling fan system Additional Information Datasheet © 2015 Littelfuse, Inc. Specifications are subject to change without notice. Application testing is strongly recommended. Revised: 07/20/15 Resources Samples Surface Mount Fuses NANO2® Fuse > Very Fast-Acting > 448 Series Electrical Specifications by Item Ampere Rating (A) Amp Code 0.062 .062 Max Voltage Rating (V) 125 0.080 .080 125 0.100 .100 0.125 Agency Approvals Nominal Cold Resistance (Ohms) Nominal Melting I2t (A2sec) 5.56 0.00023 x x 4.47 0.00043 x x 125 2.94 0.00082 x x .125 125 2.05 0.00130 x x Interrupting Rating PS E 0.160 .160 125 1.67 0.00280 x x 0.200 .200 125 1.24 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 0.800 .800 125 0.1907 0.272 x x 1.00 001. 125 0.08630 0.441 x x 1.25 1.25 125 0.06619 0.900 x x x 1.50 01.5 125 0.06514 0.900 x x x 50A @125VAC/VDC 300A @32 VDC PSE: 100A @100VAC 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 0.00700 28.00 x x x 0.00533 47.59 x x 0.00394 78.4 x x 10.00 010. 125 12.00 012. 85 15.00 015. 85 35A @125 VAC 50A @125 VDC 300A @32 VDC PSE: 100A @100VAC 50A @65 VAC/VDC 300A @24 VDC 200A @85 VDC Notes: - l2t calculated at 8ms. - Resistance is measured at 10% of rated current, 25ºC © 2015 Littelfuse, Inc. Specifications are subject to change without notice. Revised: 07/20/15 Surface Mount Fuses NANO2® Fuse > Very Fast-Acting > 448 Series 448 SERIES NANO LEAD FREE VERY FAST ACTING FUSE Average Time Current Curves .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 A 1.00 A 1.25 A 1.50 A 1.60 A 2.00 A 2.50 A 3.00 A 3.15 A 3.50 A 4.00 A 5.00 A 6.30 A 7A 8A 10 A 12 A 15 A Temperature Re-rating Curve 100 TIME IN SECONDS 10 1 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 Pre Heat Pb – Free assembly - Temperature Min (Ts(min)) 150°C - Temperature Max (Ts(max)) 200°C - Time (Min to Max) (ts) 60 – 120 secs Average ramp up rate (Liquidus Temp (TL) to peak 5°C/second max. TS(max) to TL - Ramp-up Rate 5°C/second max. Reflow - Temperature (TL) (Liquidus) 217°C - Temperature (tL) 60 – 90 seconds 260 Time within 5°C of actual peak Temperature (tp) 20 – 40 seconds °C Ramp-down Rate 5°C/second max. Time 25°C to peak Temperature (TP) 8 minutes max. Do not exceed 260°C Wave Soldering Parameters 260°C Peak Temperature, 10 seconds max. © 2015 Littelfuse, Inc. Specifications are subject to change without notice. Revised: 07/20/15 Critical Zone TL to TP Ramp-up TL TS(max) tL Ramp-down TS(min) Preheat tS 25 Peak Temperature (TP) +0/–5 tP TP Temperature Reflow Condition time to peak temperature (t 25ºC to peak) Time Surface Mount Fuses NANO2® Fuse > Very Fast-Acting > 448 Series Product Characteristics Materials Body: Ceramic Terminations: Gold-plated Caps Product Marking Brand, Amperage Rating Operating Temperature Moisture Sensitivity Level Thermal Shock Mechanical Shock -55oC to 125oC Level 1, J-STD-020 Vibration Solderability MIL-STD-202, Method 208 Insulation Resistance (after Opening) MIL-STD-202, Method 302, Test Condition A (10,000 ohms minimum) Moisture Resistance Salt Spray Resistance to Soldering Heat Dimensions MIL-STD-202, Method 101, Test Condition B (48hrs) MIL-STD-202, Method 210, Test condition B (10 sec at 260oC) F 2.69 ± .25 (.106") 0448 001. M R 2.69 ± .25 (.106") SERIES AMP Code* Refer to Electrical Characteristics table 1.45 (.057") QUANTITY Code 6.86 (.270") M = 1000 pcs PACKAGING Code 3.15 (.124") 1.96 (.077") MIL-STD-202, Method 106, 10 cycles Part Numbering System 6.10 ± .20 (.240") 7A MIL-STD-202, Method 107, Test Condition B, 5 cycles, -65oC to 125oC, 15 minutes @ each extreme MIL-STD-202, Method 213, Test I: Deenergized. 100G’s pk amplitude, sawtooth wave 6ms duration, 3 cycles XYZ+xyz = 18 shocks MIL-STD-202, Method 201: 0.03” amplitude, 10-55 Hz in 1 min. 2hrs each XYZ=6hrs R = Tape and Reel *Example: 1.5 amp product is 044801.5MR (1 amp product shown above). 2.95 (.116") Recommended pad layout Packaging Packaging Option Packaging Specification Quantity Quantity & Packaging Code 12mm Tape and Reel EIA RS-481-1 (IEC 286, part 3) 1000 MR © 2015 Littelfuse, Inc. Specifications are subject to change without notice. Revised: 07/20/15