Axial Lead and Cartridge Fuses Subminiature RoHS PICO® II Time Lag Fuse 471 Series ® ® • The PICO® II time-lag fuse is designed for applications that require moderate inrush withstand. • For additional inrush withstand, consult the 473 Series. • RoHS Compliant version now available, use ordering suffix ‘L’ (see example on data sheet). ELECTRICAL CHARACTERISTICS: % of Ampere Rating 100% 200% Opening Time 4 hours, Minimum 120 seconds, Max. AGENCY APPROVALS: Recognized under the Components Program of Underwriters Laboratories and Certified by CSA. Approved by METI from 1 through 5 amperes. AGENCY FILE NUMBERS: UL E10480, CSA LR 29862. INTERRUPTING RATINGS: 50 amperes at 125 VAC and VDC. LF 0.64 (.025") DIA. PHYSICAL SPECIFICATIONS: Materials: Encapsulated, Epoxy-Coated Body; Solder Coated Copper Wire Leads. RoHS Compliant Product: Pure Tin coated copper wire leads. Flammability Rating: UL 94V0 Voltage Rating 125 125 125 125 125 125 125 125 EPOXY COATING Average Time Current Curves 100 Nominal Resistance Cold Ohms 0.189 0.085 0.054 0.039 0.030 0.023 0.012 0.008 Nominal Melting I 2t A2 Sec. 0.159 0.722 1.610 2.500 4.390 6.960 10.600 15.400 TIME IN SECONDS Ampere Rating 1/2 1 11/2 2 21/2 3 4 5 2.41 (.095") DIA. REF. 10 ORDERING INFORMATION: Catalog Number 0471.500 0471 001. 0471 01.5 0471 002. 0471 02.5 0471 003. 0471 004. 0471 005. 1A PACKAGING SPECIFICATIONS: Tape and Reel per EIA-296; T1: 2.062" (52.4mm) taped spacing; 5,000 per reel. Options: For RoHS Compliant devices add the letter ‘L’ to end of packaging suffix. Example: 0471001.NRT1L (RoHS Compliant 1A, 5,000 per reel). Soldering Parameters: Wave Solder — 260°C, 10 seconds maximum. Solderability: MIL-STD-202, Method 208. Lead Pull Force: MIL-STD-202, Method 211, Test Condition A (will withstand a 7 lb. axial pull test). 38.1 (1.5") 1A 1 1/2A 2A 2 1/2A 3A 4A 5A (100 G’s peak for 6 milliseconds). Vibration: MIL-STD-202, Method 201 (10–55 Hz); Method 204, Test Condition C (55–2000 Hz at 10 G’s Peak). Moisture Resistance: MIL-STD-202, Method 106. 7.11 (.280") REF. 1/2A ENVIRONMENTAL SPECIFICATIONS: Operating Temperature: –55°C to 125°C. Shock: MIL-STD-202, Method 213, Test Condition I 38.1 (1.5") 1 0.1 0.01 0.001 0.05 0.1 390 w w w. l i t t e l f u s e . c o m 1 10 100 CURRENT IN AMPERES 1000