Surface Mount Fuses NANO2(R) > Very Fast-Acting > 451/453 Series 451/453 Series Fuse PS E Description Features t 7FSZGBTUBDUJOH t 4NBMMTJ[F t 8JEFSBOHFPGDVSSFOU rating available (62mA to 15A) Agency Approvals AGENCY AGENCY FILE NUMBER AMPERE RANGE E10480 6.3A - 15A LR29862 62mA - 15A NBK030205-E10480B NBK101105-E184655 1A - 5A 6.3A - 10A E10480 62mA - 5A PS E t /PUFCPPL1$ t 5FMFDPNTZTUFN t -$%1%157 t 8JSFMFTTCBTFTUBUJPO t -$%NPOJUPS t 8IJUFHPPET t -$%1%1QBOFM t (BNFDPOTPMF t -$%CBDLMJHIUJOWFSUFS t 0GaDF"VUPNBUJPO equipment t 1PSUBCMF%7%QMBZFS Ampere Rating Opening Time t 1PXFSTVQQMZ 100% 1/16 -15 4 hours, Minimum t /FUXPSLJOH 1/16 -10 5 sec., Maximum t 1$TFSWFS 12 -15 20 sec., Maximum t $PPMJOHGBOTZTUFN t 4UPSBHFTZTUFN Specifications are subject to change without notice. Please refer to www.littelfuse.com/series/451.html or /453.html for current information. t )BMPHFO'SFF Applications % of Ampere Rating (c) 2009 Littelfuse, Inc. t 3P)4DPNQMJBOU t 8JEFPQFSBUJOH temperature range Electrical Characteristics for Series 200% t -PXUFNQFSBUVSF de-rating 57 Revised: July 13, 2010 t #BUUFSZDIBSHJOHDJSDVJU protection t *OEVTUSJBMFRVJQNFOU t .FEJDBMFRVJQNFOU t "VUPNPUJWF 451/453 Series 451/453 Series The Nano2 SMF Fuse is a very small, Wire-in-Air (WIA) square shape surface mount fuse which is very suitable for the secondary side circuit over-current protection applications and is designed for PCB using surface mount technology. Mount Fuses IntroductionSurface to Circuit Protection Transientology NANO2(R) > Very Fast-Acting > 451/453 Series Electrical Specifications by Item Ampere Rating (A) Amp Code 0.062 0.080 0.100 0.125 0.160 0.200 0.250 0.315 0.375 0.400 0.500 0.630 0.750 0.800 1.00 1.25 1.50 1.60 2.00 2.50 3.00 3.15 3.50 4.00 5.00 6.30 7.00 8.00 .062 .080 .100 .125 .160 .200 .250 .315 .375 .400 .500 .630 .750 .800 001. 1.25 01.5 01.6 002. 02.5 003. 3.15 03.5 004. 005. 06.3 007. 008. Max Voltage Rating (V) 125 125 125 125 125 125 125 125 125 125 125 125 125 125 125 125 125 125 125 125 125 125 125 125 125 125 125 125 Interrupting Rating BNQFSFT!7"$7%$ BNQFSFT!7%$ PSE: 100 amperes !7"$ Nominal Cold Resistance (Ohms) Nominal Melting I2t (A2sec) 5.5000 4.0500 3.1000 1.7000 1.2157 0.8372 0.5765 0.3918 0.6100 0.5600 0.4200 0.3050 0.2450 0.2120 0.1530 0.0780 0.0630 0.0580 0.0367 0.0286 0.0227 0.0215 0.0200 0.0160 0.0125 0.0096 0.0090 0.0077 0.00019 0.00033 0.00138 0.00286 0.0048 0.0089 0.0158 0.0311 0.0425 0.0484 0.0795 0.143 0.185 0.271 0.459 0.664 0.853 1.060 0.530 1.029 1.650 1.920 2.469 3.152 5.566 9.170 10.32 20.23 0.0056 Agency Approvals PS E x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x 26.46 x x x x x x x x x x x x x x x x x x x x x x x x x x x x BNQFSFT!7"$ BNQFSFT!7%$ 10.0 010. 125 BNQFSFT!7%$ PSE: 100 amperes !7"$ 12.0 012. 65 BNQFSFT!7"$7%$ 0.0049 47.97 x x 15.0 015. 65 BNQFSFT!7%$ 0.0037 97.82 x x Notes: - l2t calculated at 8ms. - Resistance is measured at 10% of rated current, 25C 451/453 Series 58 (c) 2009 Littelfuse, Inc. Specifications are subject to change without notice. Please refer to www.littelfuse.com/series/451.html or /453.html for current information. Surface Mount Fuses NANO2(R) > Very Fast-Acting > 451/453 Series Average Time Current Curves .062A .125A .160A .200A .250A .315A .375A .500A .750A 1A 1.5A 2A 2.5A 3A 3.5A 4A 5A 7A 8A 10A 12A 15A Temperature Rerating Curve 100 1 451/453 Series TIME IN SECONDS 10 0.1 0.01 Note: %FSBUJOHEFQJDUFEJOUIJTDVSWFJTJOBEEJUJPOUPUIFTUBOEBSEEFSBUJOHPGGPS continuous operation. 0.001 0.05 0.1 1 10 100 CURRENT IN AMPERES 1000 Soldering Parameters Pre Heat Pb - Free assembly 150C - Temperature Max (Ts(max)) 200C - Time (Min to Max) (ts) 60 - 120 secs 5C/second max. TS(max) to TL - Ramp-up Rate 5C/second max. - Temperature (TL) (Liquidus) 217C - Temperature (tL) 60 - 90 seconds 250 Time within 5C of actual peak Temperature (tp) 20 - 40 seconds Ramp-down Rate 5C/second max. Time 25C to peak Temperature (TP) 8 minutes max. Do not exceed 260C Wave Soldering Parameters $1FBL Temperature, 10 seconds max. (c) 2009 Littelfuse, Inc. Specifications are subject to change without notice. Please refer to www.littelfuse.com/series/451.html or /453.html for current information. TL TS(max) tL Ramp-down TS(min) Preheat tS 25 Peak Temperature (TP) +0/-5 Critical Zone TL to TP Ramp-up - Temperature Min (Ts(min)) Average ramp up rate (Liquidus Temp (TL) to peak Reflow tP TP Temperature Reflow Condition time to peak temperature (t 25C to peak) Time C 59 451/453 Series Mount Fuses IntroductionSurface to Circuit Protection Transientology NANO2(R) > Very Fast-Acting > 451/453 Series Product Characteristics Body: Ceramic Terminations: (PME1MBUFE$BQT GPS3P)4)'TFSJFT 4O1C1MBUFE$BQT GPS/PO3P)4TFSJFT 4JMWFSQMBUFE$BQT GPS3P)4CFMPX N"3BUJOH4FSJFT Thermal Shock .*-45% .FUIPE 5FTU Condition B, 5 cycles, -65C / +125C, 15 minutes @ each extreme Mechanical Shock .*-45% .FUIPE 5FTU* %FFOFSHJ[FE(TQLBNQMJUVEF sawtooth wave 6ms duration, 3 DZDMFT9:; YZ[TIPDLT -55C to 125C Vibration .*-45% .FUIPEw BNQMJUVEF )[JONJOIST FBDI9:;IST -FWFM +45%$ Moisture Resistance .*-45% .FUIPE DZDMFT Solderability .*-45% .FUIPE Salt Spray Insulation Resistance (after Opening) .*-45% .FUIPE 5FTU Condition B (48hrs) .*-45% .FUIPE 5FTU$POEJUJPO A (10,000 ohms minimum) Resistance to Soldering Heat .*-45% .FUIPE 5FTU condition B (10 sec at 260C) Materials Product Marking Operating Temperature Moisture Sensitivity Level #SBOE "NQFSF3BUJOH Dimensions 6.10 (.240") F 7A Part Numbering System 2.69 (.106") 0451 001. M R L 2.69 (.106") SERIES (PME4O1C4JMWFS1MBUFE$BQT 4JMWFS1MBUFE$BQT 1.45 (.057") AMP Code 3FGFSUP&MFDUSJDBM characteristics table 6.86 (.270") QUANTITY Code 3.15 (.124") .QDT / QDT 2.95 1.96 (.116") (.077") PACKAGING Code 35BQFBOE3FFM RoHS Compliant & Halogen Free Recommended pad layout NOTE: "L" suffix applies to 451 series only TFSJFTNBZCFPSEFSFEBTFJUIFSi3P)4BOE)'w i-wTVGaY PSOPO3P)4 OPTVGaY WFSTJPO TFSJFTJTBWBJMBCMFPOMZBT3P)4DPNQMJBOUWFSTJPOBOEEPFTOPUSFRVJSFi-wTVGaY1MFBTFEPOPU JODMVEFi-wTVGaYXJUIJOTFSJFTPSEFSJOHJOTUSVDUJPOT TFSJFTJTPOMZBWBJMBCMFGSPNN"VQUPUIFIJHIFTUSBUJOHTQFDJaFE'PSSBUJOHTCFMPXN" please use 451 series for ordering. Packaging Packaging Option Packaging Specification Quantity Quantity & Packaging Code NN5BQFBOE3FFM &*"34 *&$ QBSU 5000 /3 NN5BQFBOE3FFM &*"34 *&$ QBSU 1000 .3 451/453 Series 60 (c) 2009 Littelfuse, Inc. Specifications are subject to change without notice. Please refer to www.littelfuse.com/series/451.html or /453.html for current information.