458 LITTELFUSE | Alldatasheet

Document overview

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Technical content

Features

t 4VSGBDF.PVOU'VTF t 'VMMZDPNQBUJCMFXJUI MFBEGSFFTPMEFSJOH QSPåMFT t 3P)4$PNQMJBOU t )BMPHFO'SFF t "WBJMBCMFJOSBUJOHTPG UP"NQFSFT % of Ampere Rating Opening Time IPVST .JOJNVN TFDPOET .BYJNVN AGENCY AGENCY FILE NUMBER AMPERE RANGE E10480 1A–10A Electrical Specifications by Item 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. 5IF4FSJFT/BOP2®'VTFJTBOVMUSBTNBMM TRVBSF TVSGBDFNPVOUGVTFEFTJHOFEUPTVQQPSUBWBSJFUZPGTQBDF DPOTUSBJOFEPWFSDVSSFOUQSPUFDUJPOBQQMJDBUJPOT0GGFSJOHB TJ[FGPPUQSJOU JUJTUIFTNBMMFTUXJSFJOBJSUZQFTVSGBDF NPVOUGVTFPGGFSFECZ-JUUFMGVTF

Applications

t /PUFCPPL1$ t-$%CBDLMJHIUJOWFSUFS t -$%1BOFM t %$%$DPOWFSUFS t #BUUFSZ1BDL t $BS/BWJHBUJPO4ZTUFN t /FUXPSL&RVJQNFOU t 5FMFDPN&RVJQNFOU t &MFDUSPOJD4JHOBHF t 1PSUBCMF$POTVNFS &MFDUSPOJDT Ampere Rating (A) Amp Code Marking Max Voltage Rating (V) Interrupting Rating Nominal Cold Resistance (Ohms) Nominal Melting I2t (A2sec) Agency Approvals 7 "!7ED Y Y Y Y 2 2 Y Y Y Y Y 4 4 Y 5 5 Y Y Y Y Y

Revised: March 17, 2009 Introduction to Circuit ProtectionIntroduction to Circuit Protection Transientology 70 © 2009 Littelfuse, Inc. Specifications are subject to change without notice. Surface Mount Fuses NANO2® > 458 Series 1206 Size Inrush Withstand Fuse

458 Series

Please refer to www.littelfuse.com/series/458.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) oTFDT Average ramp up rate (Liquidus Temp (TL) to peak ¡$TFDPOENBY TS(max) to TL - Ramp-up Rate ¡$TFDPOENBY Reflow - Temperature (TL) (Liquidus) ¡$ - Temperature (tL) oTFDPOET Peak Temperature (TP) Time within 5°C of actual peak Temperature (tp) oTFDPOET Ramp-down Rate ¡$TFDPOENBY Time 25°C to peak Temperature (TP) NJOVUFT.BY Do not exceed ¡$ Soldering Parameters T emperature Rerating Curve /PUF %FSBUJOHEFQJDUFEJOUIJTDVSWFJTJOBEEJUJPOUPUIFTUBOEBSEEFSBUJOHPGGPS DPOUJOVPVTPQFSBUJPO 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

Revised: March 17, 2009 71© 2009 Littelfuse, Inc. Specifications are subject to change without notice. Surface Mount Fuses NANO2® > 458 Series 1206 Size Inrush Withstand Fuse Please refer to www.littelfuse.com/series/458.html for current information. Materials #PEZ$FSBNJD $BQ(PME1MBUFE#SBTT Product Marking #PEZ$VSSFOU3BUJOH 3FGFSUP&MFDUSJDBM$IBSBDUFSJTUJDUBCMF Insulation Resistance BGUFS0QFOJOH .*-45% .FUIPE 5FTU$POEJUJPO" PINT .JOJNVN Solderability .*-45% .FUIPE Resistance to Soldering Heat .*-45% .FUIPE 5FTU$POEJUJPO# TFDBU Moisture Sensitivity Level -FWFM Product Characteristics Dimensions Packaging Part Numbering System Packaging Option Packaging Specification Quantity Quantity & Packaging Code NN5BQFBOE3FFM &*"34 %3 Operating Temperature o0$UP0$XJUIQSPQFSEFSBUJOH Thermal Shock .*-45%' .FUIPE( 5FTU$POEJUJPO# DZDMFTP$ UP Vibration .*-45%' .FUIPE" Moisture Resistance .*-45% .FUIPE )JHI)VNJEJUZ 3) )FBU Salt Spray .*-45%' .FUIPE% 5FTU$POEJUJPO# Shock .*-45% .FUIPE 5FTU$POEJUJPO* (TQFBLGPS NJMMJTFDPOET 0458 001. D R SERIES AMP Code QUANTITY Code PACKAGING Code 3FGFSUP&MFDUSJDBM DIBSBDUFSJTUJDTUBCMF %QDT 35BQFBOE3FFM Example: BNQQSPEVDUJT 01.5 %3 BNQ QSPEVDUTIPXOBCPWF 3.175 (.125”) 1 .575 (.062”) 1 .575 (.062”) 3.65 (.143”) 0.813 (.032”) 2.05 (.081”) 1. 18 5 (.047”) 1 .28 (.050”) Recommended Pad Layout

Revised: March 17, 2009 Introduction to Circuit ProtectionIntroduction to Circuit Protection Transientology 72 © 2009 Littelfuse, Inc. Specifications are subject to change without notice.