Surface Mount Fuses NANO2® > 458 Series 1206 Size Inrush Withstand Fuse 458 Series Fuse Description 5IF4FSJFT/BOP2®'VTFJTBOVMUSBTNBMMTRVBSF TVSGBDFNPVOUGVTFEFTJHOFEUPTVQQPSUBWBSJFUZPGTQBDF DPOTUSBJOFEPWFSDVSSFOUQSPUFDUJPOBQQMJDBUJPOT0GGFSJOHB TJ[FGPPUQSJOUJUJTUIFTNBMMFTUXJSFJOBJSUZQFTVSGBDF NPVOUGVTFPGGFSFECZ-JUUFMGVTF t 4VSGBDF.PVOU'VTF t 3P)4$PNQMJBOU t 'VMMZDPNQBUJCMFXJUI MFBEGSFFTPMEFSJOH QSPåMFT t )BMPHFO'SFF Agency Approvals AGENCY AGENCY FILE NUMBER AMPERE RANGE E10480 1A–10A Applications Electrical Characteristics for Series % of Ampere Rating Opening Time IPVST.JOJNVN TFDPOET.BYJNVN t "WBJMBCMFJOSBUJOHTPG UP"NQFSFT t /PUFCPPL1$ t $BS/BWJHBUJPO4ZTUFN t-$%CBDLMJHIUJOWFSUFS t /FUXPSL&RVJQNFOU t -$%1BOFM t 5FMFDPN&RVJQNFOU t %$%$DPOWFSUFS t &MFDUSPOJD4JHOBHF t #BUUFSZ1BDL t 1PSUBCMF$POTVNFS &MFDUSPOJDT Electrical Specifications by Item Ampere Rating (A) Amp Code Marking 1 2 2 Max Voltage Rating (V) 7 Interrupting Rating "!7ED Agency Approvals Nominal Cold Resistance (Ohms) Nominal Melting I2t (A2sec) Y Y Y Y Y Y Y Y Y 4 4 Y 5 5 Y Y Y Y Y Notes: 1. l2t values stated for 8 msec opening time 2. Cold resistance measured at less than 10% of rated current at 25°C. 3. Agency Approval Table Key: X=Approved or Certified, P=Pending and Blank=Not Approved 4. Have special electrical characteristic needs? Contact Littelfuse to learn more about application specific options. © 2009 Littelfuse, Inc. Specifications are subject to change without notice. Please refer to www.littelfuse.com/series/458.html for current information. 69 Revised: March 17, 2009 458 Series 458 Series Features Mount Fuses IntroductionSurface to Circuit Protection Transientology NANO2® > 458 Series 1206 Size Inrush Withstand Fuse Average Time Current Curves Temperature Rerating Curve /PUF %FSBUJOHEFQJDUFEJOUIJTDVSWFJTJOBEEJUJPOUPUIFTUBOEBSEEFSBUJOHPGGPS DPOUJOVPVTPQFSBUJPO Soldering Parameters Pre Heat 1Co'SFFBTTFNCMZ ¡$ - Temperature Max (Ts(max)) ¡$ - Time (Min to Max) (ts) oTFDT TL TS(max) ¡$TFDPOENBY TS(max) to TL - Ramp-up Rate ¡$TFDPOENBY - Temperature (TL) (Liquidus) ¡$ - Temperature (tL) oTFDPOET Time within 5°C of actual peak Temperature (tp) oTFDPOET Ramp-down Rate ¡$TFDPOENBY Time 25°C to peak Temperature (TP) NJOVUFT.BY Do not exceed ¡$ 458 Series tL Ramp-down TS(min) Preheat tS 25 Peak Temperature (TP) 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 time to peak temperature (t 25ºC to peak) Time ¡$ 70 Revised: March 17, 2009 © 2009 Littelfuse, Inc. Specifications are subject to change without notice. Please refer to www.littelfuse.com/series/458.html for current information. Surface Mount Fuses NANO2® > 458 Series 1206 Size Inrush Withstand Fuse Materials #PEZ$FSBNJD $BQ(PME1MBUFE#SBTT Operating Temperature o0$UP0$XJUIQSPQFSEFSBUJOH Product Marking #PEZ$VSSFOU3BUJOH 3FGFSUP&MFDUSJDBM$IBSBDUFSJTUJDUBCMF Thermal Shock .*-45%'.FUIPE( 5FTU$POEJUJPO#DZDMFTP$ UPP$ Vibration .*-45%'.FUIPE" )[ Moisture Resistance .*-45%.FUIPE )JHI)VNJEJUZ3) )FBUP$ .*-45%'.FUIPE% 5FTU$POEJUJPO# Insulation Resistance .*-45%.FUIPE 5FTU$POEJUJPO"PINT BGUFS0QFOJOH .JOJNVN Solderability .*-45%.FUIPE Resistance to Soldering Heat .*-45%.FUIPE 5FTU$POEJUJPO#TFDBUP$ Salt Spray Moisture Sensitivity Level -FWFM Shock .*-45%.FUIPE 5FTU$POEJUJPO*(TQFBLGPS NJMMJTFDPOET Part Numbering System Dimensions 3.175 (.125”) 0458 001. D R 1.575 (.062”) SERIES 1.575 (.062”) AMP Code 3FGFSUP&MFDUSJDBM DIBSBDUFSJTUJDTUBCMF 0.813 (.032”) QUANTITY Code 3.65 (.143”) %QDT PACKAGING Code 35BQFBOE3FFM 2.05 (.081”) 1.185 (.047”) Example: BNQQSPEVDUJT 01.5 %3BNQ QSPEVDUTIPXOBCPWF 1.28 (.050”) Recommended Pad Layout Packaging Packaging Option Packaging Specification Quantity Quantity & Packaging Code NN5BQFBOE3FFM &*"34 %3 © 2009 Littelfuse, Inc. Specifications are subject to change without notice. Please refer to www.littelfuse.com/series/458.html for current information. 71 Revised: March 17, 2009 458 Series 458 Series Product Characteristics Introduction to Circuit Protection Transientology 72 Revised: March 17, 2009 © 2009 Littelfuse, Inc. Specifications are subject to change without notice.