Surface Mount Fuses EBF Fuse Fast-Acting > 446/447 Series 446/447 Series Fuse Description 446 Series TVSGBDFNPVOUMFBET 447 Series 5IJTTFSJFTPGEFWJDFTBSFMFBEGSFFBOENFFUTUIF SFRVJSFNFOUTPGUIF3P)4EJSFDUJWF UISVIPMFMFBET Features t 3P)4DPNQMJBOUBOE MFBEGSFF Agency Approvals AGENCY AGENCY FILE NUMBER AMPERE RANGE E71611 2A - 10A LR29862 2A - 10A t *EFBMGPSVTFJO FMFDUSPOJDMJHIUJOH CBMMBTUQPXFSTVQQMZ BOEQPXFSJOWFSUFS BQQMJDBUJPOT t 3BUFEGPSVTFJO BOE7"$ DJSDVJUT t #BTFEPOUIFQSPWFO SFMJBCJMJUZPGUIF BVUPNPUJWF.*/*® 'VTFBWBJMBCMFGSPN UISPVHIBNQFSFT Electrical Characteristics for Series % of Ampere Rating Opening Time 100% IPVST.JOJNVN TFD.JOTFD.BY Electrical Specifications by Item Ampere Rating (A) Amp Code Max Voltage Rating (V) Interrupting Rating Nominal Cold Resistance (Ohms) Nominal Melting It (A2sec) Agency Approvals Y Y Y Y © 2009 Littelfuse, Inc. Specifications are subject to change without notice. Please refer to www.littelfuse.com/series/446.html or /447.html for current information. BNQFSFT! 7"$BNQFSFT !7%$BOE BNQFSFT!7%$ Y Y Y Y Y Y Y Y 123 Revised: February 24, 2010 446P/447P Series 446/447 Series 5IFTFSJFTBSFDJSDVJUCPBSENPVOUBCMFýBUQSPåMF GBTUBDUJOHGVTFTEFTJHOFEGPSQSPUFDUJPOPGFMFDUSPOJD CBMMBTUTBOEQPXFSJOWFSUFSBQQMJDBUJPOT5IFTFSJFTJT EFTJHOFEXJUIMFBETGPSTVSGBDFNPVOUBQQMJDBUJPOTBOE UIFTFSJFTJTEFTJHOFEXJUIMFBETGPSUISPVHIIPMF BQQMJDBUJPOT Mount Fuses IntroductionSurface to Circuit Protection Transientology EBF Fuse Fast-Acting > 446/447 Series Average Time Current Curves 2A 3A 4A 5A 7 1/2A 10A Temperature Rerating Curve 1000 TIME IN SECONDS 100 10 1 /PUF 0.1 %FSBUJOHEFQJDUFEJOUIJTDVSWFJTJOBEEJUJPOUPUIFTUBOEBSEEFSBUJOHPGGPS DPOUJOVPVTPQFSBUJPO 0.01 0.1 1 10 100 CURRENT IN AMPERES 1000 Soldering Parameters 446 Series: 3FýPX4PMEFS¡$TFDPOETNBYJNVN /PDMFBOQSPDFTTSFDPNNFOEFE 8BWF4PMEFS/PUSFDPNNFOEFE /POQMBUFEUFSNJOBMTVSGBDFTNBZOPUNFFU .*-45%.FUIPE 447 Series: $POUBDU-JUUFMGVTFGPSTPMEFSJOHQBSBNFUFST *OTJEFUFSNJOBMGBDFPGFBDIMFBEJTOPOQMBUFE[JOD/POQMBUFE[JODUFSNJOBMGBDFT NBZOPUNFFU.*-45%NFUIPE5PFOTVSFUIBUUIFGVTFJTBDDFQUBCMF GPSUIFBQQMJDBUJPOBQQSPQSJBUFBQQMJDBUJPOUFTUJOHTIPVMECFQFSGPSNFE 446P/447P Series 124 © 2009 Littelfuse, Inc. Specifications are subject to change without notice. Please refer to www.littelfuse.com/series/446.html or /447.html for current information. Surface Mount Fuses EBF Fuse Fast-Acting > 446/447 Series Product Characteristics Materials #PEZ1MBTUJD#PEZo5FSNJOBUJPOT5JOMPBE QMBUFE;O/JCBSSJFS Cleaning /PDMFBOJOHQSPDFTTSFDPNNFOEFE Operating Temperature Dimensions Part Numbering System 60 46 02 10.92 (.430") 447 Mounting Holes 1.44 (.057") PATA 350V Recommended Pad Layout 1.52 (.060") 0446 002. ZRP 1.27 (.050") Dia 4.03 (.159") 3.81 (.150") 5.91 (.233") 8.81 (.347") 10.11 (.398") 8.76 (.345") 1.50 (.059") MAX 3.2 5.59 (.126") (.220") (.032") 0.81 (.295") 7.49 0447 002. YXP Series Series Amp Code Amp Code Quantity Code Quantity Code ZRP = 800 YXP = 4000 3.2 (.126") 0.81 (.032") 'PSEJNFOTJPOTQMFBTFDPOUBDU-JUUFMGVTFGPSTQFDJåDBUJPOT Packaging Packaging Option Packaging Specification Quantity Quantity & Packaging Code &*"34*&$QBSU ;31 o 4000 :91 446 Series NN5BQFBOE3FFM 447 Series #VML1BDL © 2009 Littelfuse, Inc. Specifications are subject to change without notice. Please refer to www.littelfuse.com/series/446.html or /447.html for current information. 125 446P/447P Series 446/447 Series Reference Dimensions (Inches) LF oO$UPO$ Introduction to Circuit Protection Transientology 126 © 2009 Littelfuse, Inc. Specifications are subject to change without notice.