Surface Mount Fuses Ceramic Fuse > 469 Series 469 Series – 1206 Slo-Blo® Fuse Description The 469 Series is a 100% Lead-free, RoHS compliant and Halogen-free fuse series designed specifically to provide over-current protection to circuits that operate under high working ambient temperature up to 150ºC. The high I²t values which are typical in the Littelfuse Ceramic fuse family, ensure high inrush current withstand capability. Features Agency Approvals AGENCY AGENCY FILE NUMBER AMPERE RANGE E10480 1A – 8A LR29862 (Pending) 1A – 8A t 0QFSBUJOH5FNQFSBUVSF from -55ºC to +150ºC t -FBEGSFF3P)4 compliant and Halogenfree t 4VJUBCMFGPSCPUIMFBEFE and lead-free reflow / wave soldering Applications Electrical Characteristics for Series % of Ampere Rating Ampere Rating Opening Time at 25ºC 100% 1A – 8A 4 hours, Minimum 200% 1A – 8A 1 sec., Min.; 120 secs., Max. 300% 1A – 8A 0.1 sec., Min.; 3 secs., Max. 800% 1A – 8A 0.002 sec., Min.; 0.05 sec., Max. t "VUPNPUJWF&MFDUSPOJDT t 1SJOUFST t -$%%JTQMBZT t 4DBOOFST t 4FSWFST t %BUB.PEFNT t /PUFCPPL$PNQVUFST t (BNJOH$POTPMFT Electrical Specifications by Item Ampere Amp Rating Code (A) 1 1.25 1.5 2 2.5 3 3.5 4 5 6 7 8 001. 1.25 01.5 002. 02.5 003. 03.5 004. 005. 006. 007. 008. Max. Voltage Rating (V) 63 63 63 63 32 32 32 32 32 24 24 24 Nominal Nominal Voltage Nominal Power Agency Approvals Nominal Drop At Rated Dissipation At Interrupting Rating Resistance Melting I2t (A2Sec.)3 Current (V)4 Rated Current (W) (Ohms)2 50 A @ 63 V DC $0.*/(400/ 50 A @ 32 V DC 60 A @ 32 V DC 60 A @ 24 V DC 0.052 0.035 0.028 0.021 0.017 3.560 5.620 9.410 14.400 23.720 0.236 0.216 0.274 0.216 0.233 0.944 1.080 1.640 1.510 1.860 pending pending x x x x x x x x x x pending pending pending pending pending pending pending pending pending pending pending pending /PUFT 1. AC Interrupting Rating tested at rated voltage with unity power factor. DC Interrupting Rating tested at rated voltage with time constant < 0.8 msec. /PNJOBM3FTJTUBODFNFBTVSFEXJUISBUFEDVSSFOU Devices designed to carry rated current for 4 hours minimum. It is recommended that devices be operated continuously at no more than 80% rated current. See “Temperature Rerating Curve”for additional rerating information. Devices designed to be mounted with marking code facing up. /PNJOBM.FMUJOH*¤UNFBTVSFEBUNTFDPQFOJOHUJNF /PNJOBM7PMUBHF%SPQNFBTVSFEBUSBUFEDVSSFOUBGUFSUFNQFSBUVSFIBTTUBCJMJ[FE © 2009 Littelfuse, Inc. Specifications are subject to change without notice. Please refer to www.littelfuse.com/series/469.html for current information. 469 Series Revised: January 27, 2010 469 Series The general design ensures excellent temperature stability and performance reliability. Mount Fuses IntroductionSurface to Circuit Protection Ceramic FuseTransientology > 469 Series Average Time Current Curves 4A 5A 6A 7A 8A Temperature Rerating Curve 100 120 10 100 80 TIME IN SECONDS PERCENT OF RATING 140 60 40 -65 -45 -25 -5 15 35 55 75 95 115 135 155 1 0.1 TEMPERATURE (°C) /PUF 1. Rerating depicted in this curve is in addition to the standard rerating of 20% for continuous operation. 0.01 &YBNQMF 'PSDPOUJOVPVTPQFSBUJPOBUEFHSFFTDFMTJVTUIFGVTFTIPVMECFSFSBUFEBTGPMMPXT I = (0.80)(0.85)IRAT = (0.68)IRAT 0.001 1 10 100 1000 CURRENT IN AMPERES Soldering Parameters Reflow Condition - Temperature Min (Ts(min)) 150°C - Temperature Max (Ts(max)) 200°C - Time (Min to Max) (ts) 60 – 180 seconds Average Ramp-up Rate (Liquidus Temp (TL) to peak) 3°C/second max. TS(max) to TL - Ramp-up Rate 5°C/second max. Reflow - Temperature (TL) (Liquidus) 217°C - Temperature (tL) 60 – 150 seconds Peak Temperature (TP) 260+0/-5 °C Time within 5°C of actual peak Temperature (tp) 10 – 30 seconds Ramp-down Rate 6°C/second max. Time 25°C to peak Temperature (TP) 8 minutes max. Do not exceed 260°C Wave Soldering 469 Series tP TP Critical Zone TL to TP Ramp-up TL TS(max) Temperature Pre Heat 1CoGSFFBTTFNCMZ tL Ramp-down TS(min) Preheat tS 25 time to peak temperature (t 25ºC to peak) Time 260°C, 10 seconds max. © 2009 Littelfuse, Inc. Specifications are subject to change without notice. Please refer to www.littelfuse.com/series/469.html for current information. Surface Mount Fuses Ceramic Fuse > 469 Series Product Characteristics Body: Advanced Ceramic Terminations: "H/J4O-FBEGSFF Element Cover Coating: -FBEGSFF(MBTT Materials Moisture *1$+&%&$+45%$-FWFM Sensitivity Level Moisture Resistance .*-45%.FUIPE( Thermal Shock .*-45%.FUIPE( $POEJUJPO# Mechanical Shock .*-45%.FUIPE# Condition A Vibration MIL-STD-202, Method 201A Vibration, High Frequency MIL-STD-202, Method 204D, Condition D *1$&*$+&%&$+45%#$POEJUJPO# Humidity Test .*-45%.FUIPE#$POEJUJPOT% ESD Immunity *&$L7%JSFDU *1$&*$+&%&$+45%# Condition D Resistance to Solder Heat Dissolution of Metallization .*-45%.FUIPE'$POEJUJPO# Terminal Strength *&$ Dimensions 1.000 ± 0.200 [0.039 ± 0.008 1.63 + 0.1/-0.2 [0.064 + 0.004/-0.008] 469 Series Solderability Part Marking System 3.27 + 0.12/-0.25 [0.129 + 0.005/-0.010] Amp Code Marking Code 001. H 1.25 J 01.5 K 002. N 02.5 O X 0.900 ± 0.150 [0.035 ± 0.006] 003. P 03.5 R 004. S 005. T 006. U 007. W 008. X Part Numbering System 0.520 ± 0.200 [0.020 ± 0.008] 0469 008. W R 1.000 [0.039] 1.500 [0.059] SERIES PACKING CODE 1.800 [0.071] 33FFM1BDL AMP CODE QUANTITY CODE 3.500 [0.138] W = 3000 pcs Packaging Packaging Option Packaging Specification Quantity Quantity & Packaging Code 8mm Tape and Reel &*"*&$QBSU 3000 WR © 2009 Littelfuse, Inc. Specifications are subject to change without notice. Please refer to www.littelfuse.com/series/469.html for current information. 469 Series Introduction to Circuit Protection Transientology © 2009 Littelfuse, Inc. Specifications are subject to change without notice. Please refer to www.littelfuse.com/series/469.html for current information.