Surface Mount Fuses PICO® SMF Fuse > 460 Series 460 Series PICO® Slo-Blo® Surface Mount Fuse PS E Description The 460 Series Slo-Blo® SMF is based on Littelfuse PICO® fuse through-hole technology, though offered in a surface mount package. This series of devices meets the requirements of the RoHS directive. 460 Series Features t 4MPX#MPX t )JHIJOSVTIDVSSFOUXJUITUBOEDBQBCJMJUZ t 8JEFDVSSFOUSBUJOHSBOHF"UP" Agency Approvals AGENCY PS E AGENCY FILE NUMBER AMPERE RANGE E10480 0.375A - 5A LR29862 0.375A - 5A NBK030205-E10480B 1A - 5A t 8JEFPQFSBUJOHUFNQFSBUVSFSBOHF t 3P)4DPNQMJBOU Applications t 8JSFMFTTCBTFTUBUJPO t /FUXPSLFRVJQNFOU t 5FMFDPNFRVJQNFOU Electrical Characteristics for Series % of Ampere Rating Opening Time 100% 4 hours, Minimum 200% 1 second, Min.; 120 seconds, Max. 300% 0.2 second, Min.; 3 seconds, Max. 800% 0.02 second, Min.; 0.1 second, Max. Electrical Specifications by Item Ampere Rating (A) Amp Code Max Voltage Rating (V) 0.375 .375 125 0.500 .500 0.750 .750 1.00 Agency Approvals Nominal Cold Resistance (Ohms) Nominal Melting I2t (A2sec) 1.7400 0.085 x x 125 1.1900 0.210 x x 125 0.4970 0.760 x x 001. 125 0.3000 2.01 x x x 1.50 01.5 125 2.00 002. 125 Interrupting Rating 50 A @125 VAC 50 A @125 VDC PS E 0.1160 3.94 x x x 0.0710 7.60 x x x 2.50 02.5 125 0.0520 13.0 x x x 3.00 003. 125 0.0380 21.0 x x x 3.50 03.5 125 0.0240 26.8 x x x 4.00 004. 125 0.0194 35.0 x x x 5.00 005. 125 0.0133 54.8 x x x © 2012 Littelfuse, Inc. Specifications are subject to change without notice. Please refer to www.littelfuse.com/series/460.html for current information. 460 Series Revised: April 24, 2012 Mount Fuses IntroductionSurface to Circuit Protection PICO® SMF FuseTransientology > 460 Series Average Time Current Curves .375A .500A .750A 1A 1.5A 2A 2.5A 3A 3.5A 4A 5A Temperature Rerating Curve 1000 TIME IN SECONDS 100 10 1 /PUF 1. Rerating depicted in this curve is in addition to the standard rerating of 25% for continuous operation. Soldering Parameters 0.1 0.01 0.05 0.1 Wave Soldering 260°C, 3 seconds max. Reflow Soldering 230°C, 30 seconds max. 1 10 100 1000 CURRENT IN AMPERES Product Characteristics Materials Body: Molded Thermoplastic Terminations: 100% Tin-plated Copper (460 Series) Solderability MIL-STD-202, Method 208 Product Marking Body: Brand Logo, Current Rating, Voltage Rating, Series Code, Date Code, Agency Approved Logo Moisture Sensitivity Level Level 1 J-STD - 020C Operating Temperature –55°C to 125°C 460 Series Shock MIL-STD-202, Method 213, Test Condition I (100 G’s peak for 6 msecs.) Vibration MIL-STD-202, Method 201 (10–55 Hz, 0.06 inch total excursion) Salt Spray MIL-STD-202, Method 101, Test Condition B (48 hours) Insulation Resistance (After Opening) MIL-STD-202, Method 302, (10,000 ohms minimum at 100 volts) Thermal Shock MIL-STD-202, Method 107, Test Condition B (–65°C to 125°C) Moisture Resistance MIL-STD-202, Method 106, High Humidity (90-98 RH), Heat (65°C) © 2012 Littelfuse, Inc. Specifications are subject to change without notice. Please refer to www.littelfuse.com/series/460.html for current information. Surface Mount Fuses PICO® SMF Fuse > 460 Series Part Numbering System Dimensions 1 25 V LF ® 46 0 ® 0460 .500 UR 4.32 (.170") B3 8.26 (.325") 2.03 (.080") 7.24(.285") REF. 3.05 (.120") 1.65 (.065") 2.97 (.117") 4.95 (.195") RECOMMENDED PAD LAYOUT 1.30(.051") REF. SERIES AMP CODE Refer to Electrical Characteristics table QUANTITY CODE UR = 500 pcs ER = 2500 pcs PACKAGING CODE R = Tape and Reel Example: 1 Amp product is 0460 .001 UR (.5 Amp QSPEVDUTIPXOBCPWF 460 Series 5A Packaging Packaging Option Packaging Specification Quantity Quantity & Packaging Code 12mm Tape and Reel EIA RS-481-1 (IEC 286, part 3) 500 UR 12mm Tape and Reel EIA RS-481-1 (IEC 286, part 3) 2500 ER © 2012 Littelfuse, Inc. Specifications are subject to change without notice. Please refer to www.littelfuse.com/series/460.html for current information. 460 Series