0263.500

Axial Lead and Cartridge Fuses Subminiature RoHS PICO® II 250 Volt Very Fast-Acting Fuse 263 Series ® ® The PICO® II 250 Volt Fuse is a specially designed axial leaded fuse that achieves a 250 volt rating in a small package. • RoHS Compliant version now available, use ordering suffix ‘L’ (see example on data sheet). ELECTRICAL CHARACTERISTICS: % of Ampere Rating 100% 200% 300% Opening Time 4 hours, Minimum 1 second, Maximum 0.1 second, Maximum AGENCY APPROVALS: Recognized under the Components Program of Underwriters Laboratories and Certified by CSA. AGENCY FILE NUMBERS: UL E10480, CSA LR 29862. INTERRUPTING RATING: 50 amperes at 250 VAC. ENVIRONMENTAL SPECIFICATIONS: Operating Temperature: –55°C to 125°C. Shock: MIL-STD-202, Method 213, Test Condition I (100 G’s peak for 6 milliseconds). 38.1 (1.5") 7.62 (.300") REF. 38.1 (1.5") 3.683 (.145") DIA. REF. F L 0.64 (.025") DIA. 3 1/2 A 250 V Vibration: MIL-STD-202, Method 201 (10–55 Hz); MIL-STD-202, Method 204, Test Condition C (55–2000 Hz at 10 G’s Peak). Salt Spray: MIL-STD-202, Method 101, Test Condition B (48 hrs.). Insulation Resistance (After Opening): MIL-STD-202, Method 302, Test Condition A (10,000 ohms minimum at 100 volts). Resistance to Soldering Heat: MIL-STD-202, Method 210, Test Condition C (10 sec at 260°C). Thermal Shock: MIL-STD-202, Method 107, Test Condition B (–55°C to 125°C). Moisture Resistance: MIL-STD-202, Method 106. PHYSICAL SPECIFICATIONS: Materials: Encapsulated, Epoxy-Coated Body; Solder Coated Copper Leads. RoHS Compliant Product: Pure Tin coated copper wire leads. PACKAGING SPECIFICATIONS: Tape and Reel per EIA-296; T1: 2.062" (52.4mm) taped spacing; 3,000 per reel. Options: For RoHS Compliant devices add the letter ‘L’ to end of packaging suffix. Example: 263001. WRT1L (RoHS Compliant 1A, 3,000 per reel). Average Time Current Curves 3/8A 1/2A 3/4A 1A 1 1/2A 2A 2 1/2A 3A 3 1/2A 4A 5A 1/16A 1/8A 1/4A Soldering Parameters: Wave Solder — 260°C, 10 seconds maximum. 10 Test Condition A (will withstand 7 lb. axial pull test). TIME IN SECONDS Solderability: MIL-STD-202, Method 208. Lead Pull Force: MIL-STD-202, Method 211, PATENTED ORDERING INFORMATION: Catalog Number 0263.062 0263.125 0263.250 0263.375 0263.500 0263.750 0263 001 0263 01.5 0263 002 0263 02.5 0263 003 0263 03.5 0263 004 0263 005 Ampere Rating 1/16 1/8 1/4 3/8 1/2 3/4 1 11/2 2 21/2 3 31/2 4 5 Voltage Rating 250 250 250 250 250 250 250 250 250 250 250 250 250 250 Nominal Resistance Cold Ohms 5.50 1.75 0.715 0.391 0.252 0.150 0.105 0.0635 0.0444 0.0340 0.0274 0.0224 0.0193 0.0145 Nominal Melting I 2t A2 Sec. 0.000192 0.00251 0.0165 0.0444 0.1125 0.0411 0.087 0.398 0.74 1.197 1.77 2.33 3.08 5.55 1 0.1 0.01 0.001 0.05 0.1 1 10 CURRENT IN AMPERES 100 w w w. l i t t e l f u s e . c o m 389 AXIAL LEAD AND CARTRIDGE FUSES 100 11