Surface Mount Fuses NANO2® > 456 Series 456 Series Fuse PS E Description The High Current NANO2® Fuse is a small square surface mount fuse that is designed to support higher current requirements of various applications. Agency Approvals AGENCY PS E AGENCY FILE NUMBER AMPERE RATING E10480 20A, 30A, 40A NBK030308-JP1021 20A, 30A t 4VSGBDFNPVOUIJHI current fuse t 3P)4DPNQMJBOUBOE Halogen Free t 'VMMZDPNQBUJCMF XJUIMFBEGSFFTPMEFS BMMPZTBOEIJHIFS temperature profiles BTTPDJBUFEXJUIMFBE GSFFBTTFNCMZ t "WBJMBCMFJOSBUJOHTPG 20 to 40 Amperes Applications Electrical Characteristics t 7PMUBHFSFHVMBUPS module for PC server t #BTFTUBUJPOQPXFS TVQQMZ t $PPMJOHGBOTZTUFNGPS PC server t "VUPNPUJWF t 4UPSBHFTZTUFNQPXFS % of Ampere Rating Opening Time 100% 4 hours, Minimum 200% 60 seconds, Maximum Electrical Specifications Ampere Rating (A) Amp Code Max Voltage Rating (V) 20 020. 125 100A @125V AC 300A @ 65V AC 300A @ 100V DC 1000A @ 32V DC 30 030. 125 40 040. 60 Agency Approvals Nominal Melting 2 I t (A2 Sec.) Nom Voltage Drop (mV) 0.00230 18 64.7 x x 100A @ 125V AC 300A @ 65V AC 1000A @ 32V DC 0.00132 81 69.9 x x 600A @ 60V DC 0.00105 454 55 x Nominal Interrupting Rating Cold Resistance (Ohms) PS E Notes: 1. Cold resistance measured at less than 10% of rated current at 23°C. 2. Agency Approval Table Key: X=Approved or Certified, P=Pending. 3. I2t values stated for 10 msec opening time. © 2009 Littelfuse, Inc. Specifications are subject to change without notice. Please refer to www.littelfuse.com/series/456.html for current information. 65 Revised: September 21, 2009 456 Series 456 Series Features Mount Fuses IntroductionSurface to Circuit Protection NANO2®Transientology > 456 Series 40A 30A Average Time Current Curves 20A Temperature Rerating Curve 40 100 20 0 20 40 60 -60°C -76°F -40°C -40°F -20°C -4°F 0°C 32°F 20°C 40°C 60°C 80°C 68°F 104°F 140°F 176°F AMBIENT TEMPERATURE 100°C 212°F 120°C 248°F TIME IN SECONDS 0 PERCENT OF DOWNUPRATING PERCENT OF UPRATING 60 10 1 140°C 264°F 0.1 0.01 1 10 100 1000 CURRENT IN AMPERES Soldering Parameters – Reflow Soldering Pre Heat 1Co'SFFBTTFNCMZ - Temperature Min (Ts(min)) 150°C - Temperature Max (Ts(max)) 200°C - Time (Min to Max) (ts) oTFDT Average ramp up rate (Liquidus Temp (TL) to peak 5°C/second max. TS(max) to TL - Ramp-up Rate 5°C/second max. Reflow - Temperature (TL) (Liquidus) 217°C - Temperature (tL) oTFDPOET Peak Temperature (TP) 250 °C Time within 5°C of actual peak Temperature (tp) oTFDPOET Ramp-down Rate 5°C/second max. Time 25°C to peak Temperature (TP) 8 minutes max. Do not exceed 260°C 456 Series tP TP Critical Zone TL to TP Ramp-up TL TS(max) Temperature Reflow Condition tL Ramp-down TS(min) Preheat tS 25 time to peak temperature (t 25ºC to peak) 66 Time © 2009 Littelfuse, Inc. Specifications are subject to change without notice. Please refer to www.littelfuse.com/series/456.html for current information. Surface Mount Fuses NANO2® > 456 Series Materials #PEZ$FSBNJD $BQ4JMWFS1MBUFE#SBTT Operating Temperature OC to 125O$XJUIQSPQFSEFSBUJOH Product Marking #PEZ#SBOE-PHP$VSSFOU3BUJOH Thermal Shock Insulation Resistance .*-45%NFUIPE5FTU Condition A (10,000 ohms, Minimum) .*-45%'.FUIPE( 5FTU$POEJUJPO# DZDMFTOC to 125OC) Vibration .*-45%'.FUIPE" )[ Moisture Sensitivity Level -FWFM+45%$ Moisture Resistance .*-45%'.FUIPE )JHI)VNJEJUZ3) Heat (65OC) Salt Spray .*-45%'.FUIPE% 5FTU$POEJUJPO# Mechanical Shock .*-45%.FUIPE 5FTU$POEJUJPO*(TQFBLGPS milliseconds) Solderability .*-45%.FUIPE Resistance to Soldering Heat .*-45%.FUIPE 5FTU$POEJUJPO#TFDBUOC) .JODPQQFSMBZFSUIJDLOFTTN .JODPQQFSUSBDFXJEUI" 10mm (20A, 30A) / 15mm (40A) PCB Alternate methods of thermal manage Recommendation for NFOUNBZCFVTFE*OTVDIDBTFT Thermal Management under normal operations, the maxi NVNUFNQFSBUVSFPGUIFGVTFCPEZ should not exceed 80OC in a 25OC environment. Dimensions Part Numbering System 20 A, 30A: F 20 0456 020. E R 3.25 (.128”) 3.120 [.123”] 10.10 (.397”) SERIES 6.10 (.240”) A 3.120 (.123”) 1.70 typ (0.067”) 12.60 (.496”) AMP Code 3FGFSUP&MFDUSJDBM DIBSBDUFSJTUJDTUBCMF 3.43 (.135”) Recommended Pad Layout 40A: 4.445 (.175”) 12.50 (.492) F 40 QUANTITY Code &QDT %QDT PACKAGING Code 35BQFBOE3FFM 4.445 (.175”) A 2.173 (.086”) 2.79 (.110”) 0.30 (.012”) 3.79 (.149”) 5.72 (.225”) 5.65 (.222”) Recommended Pad Layout 13.3 (.524”) Packaging Rating Packaging Option Packaging Specification Quantity Quantity & Packaging Code 20A, 30A NN5BQFBOE3FFM &*"34 2500 &3 40A NN5BQFBOE3FFM &*"34*&$QBSU 1500 %3 © 2009 Littelfuse, Inc. Specifications are subject to change without notice. Please refer to www.littelfuse.com/series/456.html for current information. 67 456 Series 456 Series Product Characteristics Introduction to Circuit Protection Transientology 68 © 2009 Littelfuse, Inc. Specifications are subject to change without notice.