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  • Manufacturer or author: Provided By digicamel.com
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Features

E 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

Applications

t /PUFCPPL1$ t -$%1%157 t -$%NPOJUPS t -$%1%1QBOFM t -$%CBDLMJHIUJOWFSUFS t 1PSUBCMF%7%QMBZFS t 1PXFSTVQQMZ t /FUXPSLJOH t 1$TFSWFS t $PPMJOHGBOTZTUFN t 4UPSBHFTZTUFN t 5FMFDPNTZTUFN t 8JSFMFTTCBTFTUBUJPO t 8IJUFHPPET t (BNFDPOTPMF t 0GmDF"VUPNBUJPO equipment t #BUUFSZDIBSHJOHDJSDVJU protection t *OEVTUSJBMFRVJQNFOU t .FEJDBMFRVJQNFOU t"VUPNPUJWF t -FBEGSFFBOE)BMPHFO Free t 7FSZGBTUBDUJOH t 4NBMMTJ[F t 8JEFSBOHFPGDVSSFOU SBUJOHBWBJMBCMF N" UP" t 8JEFPQFSBUJOH temperature range t -PXUFNQFSBUVSF de-rating AGENCY AGENCY FILE NUMBER AMPERE RANGE E10480 62mA - 15A LR29862 62mA - 15A PS E NBK030205 1A - 10A Revised: September 6, 2012

© 2012 Littelfuse, Inc. Specifications are subject to change without notice. Surface Mount Fuses

448 Series

NANO2® > Very Fast-Acting > 448 Series Please refer to www.littelfuse.com/series/448.html for current information. Ampere Rating (A) Amp Code Max Voltage Rating (V) Interrupting Rating Nominal Cold Resistance (Ohms) Nominal Melting I2t (A2sec) Agency Approvals PS E 0.062 .062 125 50 amperes !7"$7%$ 300 amperes !7%$ 14&BNQFSFT !7"$ 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 .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 0.1 0000 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 10.00 010. 125 35 amperes !7"$ 50 amperes !7%$ 300 amperes !7%$ 14&BNQFSFT !7"$ 0.00700 28.00 x x x 12.00 012. 85 50 amperes !7"$7%$ 300 amperes !7%$ 200 amperes !7%$ 0.00533 47 .59 x x 15.00 015. 85 0.00394 96.10 x x Electrical Specifications by Item Notes: - l2t calculated at 8ms. - Resistance is measured at 10% of rated current, 25ºC

© 2012 Littelfuse, Inc. Specifications are subject to change without notice. Surface Mount Fuses NANO2® > Very Fast-Acting > 448 Series Please refer to www.littelfuse.com/series/448.html for current information. Average Time Current Curves Reflow Condition 1Co'SFFBTTFNCMZ Pre Heat - Temperature Min (Ts(min)) ¡$ - Temperature Max (Ts(max)) ¡$ - Time (Min to Max) (ts) 60 – 120 secs Average ramp up rate (Liquidus Temp (TL) to peak ¡$TFDPOENBY TS(max) to TL - Ramp-up Rate ¡$TFDPOENBY Reflow - Temperature (TL) (Liquidus) ¡$ - Temperature (tL) 60 – 90 seconds Peak Temperature (TP) 250+0/-5¡$ Time within 5°C of actual peak Temperature (t p) 20 – 40 seconds Ramp-down Rate ¡$TFDPOENBY Time 25°C to peak Temperature (TP) 8 minutes max. Do not exceed ¡$ Wave Soldering Parameters ¡$1FBL Temperature, 10 seconds max. Soldering Parameters T emperature Rerating Curve 0.001 0.01 0.1 100 0 0 0 10 0 10 111 . 0 CURRENT IN AMPS TIME IN SECONDS .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 7 A 8 A 10 A 12 A 15 A /PUF %FSBUJOHEFQJDUFEJOUIJTDVSWFJTJOBEEJUJPOUPUIFTUBOEBSEEFSBUJOHPGGPS continuous operation. Time Temperature TP TL TS(max) TS(min) tP tL tS time to peak temperature (t 25ºC to peak) Ramp-down Ramp-up Preheat Critical Zone TL to TP

© 2012 Littelfuse, Inc. Specifications are subject to change without notice. Surface Mount Fuses NANO2® > Very Fast-Acting > 448 Series Please refer to www.littelfuse.com/series/448.html for current information. Materials #PEZ$FSBNJD 5FSNJOBUJPOT(PMEQMBUFE$BQT Product Marking #SBOE "NQFSBHF3BUJOH Operating T emperature -55o$UPo$ Moisture Sensitivity Level -FWFM +45%$ Solderability .*-45% .FUIPE Insulation Resistance (after Opening) .*-45% .FUIPE 5FTU$POEJUJPO PINTNJOJNVN Thermal Shock .*-45% .FUIPE 5FTU $POEJUJPO# DZDMFT o$UP 125o$ NJOVUFT!FBDIFYUSFNF Mechanical Shock .*-45% .FUIPE 5FTU* %FFOFSHJ[FE(TQLBNQMJUVEF sawtooth wave 6ms duration, 3 DZDMFT9:; YZ[ TIPDLT Vibration .*-45% .FUIPEw BNQMJUVEF )[JONJOIST FBDI9:; IST Moisture Resistance .*-45% .FUIPE DZDMFT Salt Spray .*-45% .FUIPE 5FTU $POEJUJPO# IST Resistance to Soldering Heat .*-45% .FUIPE 5FTU DPOEJUJPO# TFDBU Product Characteristics F 7 A 6.86 3.15 2.95 1.96 2.69 ± .25 2.69 ± .25 1.45 6.10 ± .20 Recommended pad layout Dimensions Packaging Part Numbering System Packaging Option Packaging Specification Quantity Quantity & Packaging Code QBSU 1000 MR 0448 001. M R SERIES AMP Code* QUANTITY Code PACKAGING Code Refer to Electrical Characteristics table M = 1000 pcs R = Tape and Reel *Example: 1 .5 amp product is 044801 .5MR BNQQSPEVDUTIPXOBCPWF