Surface Mount Fuses NANO2(R) > Very Fast-Acting > 448 Series 448 Series Fuse PS E 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. Agency Approvals AGENCY UE i>vAiiE>E>}iE Free UE 7iEiA>I}E temperature range UE 6iAEv>AIE>VI} UE UEIiiA>IOAiE de-rating UE ->EAaiE AGENCY FILE NUMBER AMPERE RANGE E10480 62mA - 15A LR29862 62mA - 15A NBK030205 1A - 10A UE 7iEA>}iEvEVOAAiIE A>I}E>U>>LiEEOE IEx(R) Applications PS E UE 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 IiLE* UE E* *E/6E UE 7AiiAAEL>AiAI>I UE EIA UE 7 IiE}A UE E* *E>i UE >iEVAi UE EL>V} IEUiAIiA UE "vwViEOI>IE equipment UE *AI>LiE 6 E>iA UE *UiAEAO 200% UE iIUA}E UE * EAiAUiA UE }Ev>EAAIi UE -IA>}iEAAIi (c) 2009 Littelfuse, Inc. Specifications are subject to change without notice. Please refer to www.littelfuse.com/series/448.html for current information. UE /iiVEAAIi 49 Revised: October 7, 2011 UE >IIiAEV >A}}EVAVOIE protection UE OAIA>EiOiI UE iV>EiOiI UEEOIIUi 448 Series 448 Series Features Mount Fuses IntroductionSurface to Circuit Protection NANO2(R) > Very Fast-ActingTransientology > 448 Series Electrical Specifications by Item Ampere Rating (A) Amp Code Max Voltage Rating (V) 0.062 .062 0.080 0.100 Agency Approvals Nominal Cold Resistance (Ohms) Nominal Melting I2t (A2sec) 125 5.50 0.00023 x x .080 125 4.42 0.00043 x x .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 1.40 0.00380 x x 0.250 .250 125 1.05 0.01520 x x 0.315 .315 125 0.7900 0.02650 x x 0.375 .375 125 0.7300 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 0.2821 0.121 x x 0.750 .750 125 0.2475 0.206 x x 0.800 .800 125 0.1907 0.272 x x 1.00 001. 125 0.08630 0.441 x 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 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 Interrupting Rating 50 amperes JOxE6 E6 300 amperes JIOE6 *- \EaaE>iAiA Jaa6 PS E 35 amperes JOxE6 10.00 010. 125 50 amperes JOxE6 300 amperes JIOE6 *- \EaaE>iAiA Jaa6 12.00 012. 65 50 amperes JExE6 E6 0.00533 47.59 x x 15.00 015. 65 300 amperes JO{E6 0.00394 96.10 x x Notes: - l2t calculated at 8ms. - Resistance is measured at 10% of rated current, 25C 448 Series 50 (c) 2009 Littelfuse, Inc. Specifications are subject to change without notice. Please refer to www.littelfuse.com/series/448.html for current information. Surface Mount Fuses NANO2(R) > Very Fast-Acting > 448 Series 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 Rerating Curve 100 448 Series TIME IN SECONDS 10 1 0.1 Ii\ E iA>I}EiVIiEEI AEVOAUiEAEE>IEIEI iEAI>>AEiA>I}EvEOxEvAE continuous operation. 0.01 0.001 0.1 1 10 100 1000 CURRENT IN AMPS Soldering Parameters Pre Heat *LEqEAiiE>AAiL xac E - Temperature Max (Ts(max)) Oaac - Time (Min to Max) (ts) 60 - 120 secs xc EAiVE>Y TS(max) to TL - Ramp-up Rate xc EAiVE>Y - Temperature (TL) (Liquidus) OCc E - Temperature (tL) 60 - 90 seconds +0/-5 tL Ramp-down TS(min) Preheat tS time to peak temperature (t 25C to peak) Time Ec 250 Time within 5C of actual peak Temperature (tp) 20 - 40 seconds Ramp-down Rate xc EAiVE>Y Time 25C to peak Temperature (TP) 8 minutes max. Do not exceed OEac Wave Soldering Parameters OEac E*i>E Temperature, 10 seconds max. Specifications are subject to change without notice. Please refer to www.littelfuse.com/series/448.html for current information. TL TS(max) 25 Peak Temperature (TP) (c) 2009 Littelfuse, Inc. Critical Zone TL to TP Ramp-up - Temperature Min (Ts(min)) Average ramp up rate (Liquidus Temp (TL) to peak Reflow tP TP Temperature Reflow Condition 51 448 Series Mount Fuses IntroductionSurface to Circuit Protection NANO2(R) > Very Fast-ActingTransientology > 448 Series Product Characteristics \EE iA>VEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEE /iA>IA\EE>IiE >A Materials Thermal Shock -/ OaO]EiI EaC]E/iAIE IE ]ExEVViA]EExo EIE 125o ]ExEOIiAEJEi>V EiYIAii Mechanical Shock -/ OaO]EiI EOI]E/iAIE\E iiiA}aiEEaa1/2AEE>IOi]E sawtooth wave 6ms duration, 3 VViAE89<YaErEnEA VA Vibration -/ OaO]EiI EOa\EaaIE >IOi]EaxxEaEEEEEO AAE i>V E89<rE AA Moisture Resistance -/ OaO]EiI EaE]EaE cycles Salt Spray -/ OaO]EiI Ea]E/iAIE IE E{n AA(R) Resistance to Soldering Heat -/ OaO]EiI EOa]E/iAIE VIE EaEAiVE>IEOEao (R) A>]EiA>}iE,>I} Product Marking Operating Temperature -55o EIEOxo Moisture Sensitivity Level iUiE]E-/ aOa Solderability -/ OaO]EiI EOan Insulation Resistance (after Opening) -/ OaO]EiI EIaO]E/iAIE IEEa]aaaE AEO(R) Dimensions 6.10 .20 (.240") F 7A Part Numbering System 2.69 .25 (.106") 0448 001. M R 2.69 .25 (.106") SERIES AMP Code* 1.45 (.057") Refer to Electrical Characteristics table 6.86 (.270") QUANTITY Code 3.15 (.124") PACKAGING Code M = 1000 pcs R = Tape and Reel *Example: 1.5 amp product is 044801.5MR E>EAOVIEA UE>LUi(R) 2.95 1.96 (.116") (.077") Recommended pad layout Packaging Packaging Option 12mm Tape and Reel 448 Series Packaging Specification E,-{nE EOnE]E>AIEI(R) 52 Quantity Quantity & Packaging Code 1000 MR (c) 2009 Littelfuse, Inc. Specifications are subject to change without notice. Please refer to www.littelfuse.com/series/448.html for current information.