SURFACE MOUNT FUSES SUBMINIATURE SURFACE MOUNT PICO® SMF Very Fast-Acting Type Fuse 459 Series ® ® The PICO® SMF Very Fast-Acting Fuse provides high performance in a rectangular package suitable for reflow and wave soldering methods. 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. Catalog Number R459.062 R459.125 R459.250 R459.375 R459.500 R459.750 R459 001 R459 01.5 R459 002 R459 02.5 R459 003 R459 03.5 R459 004 R459 005 36 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 125 125 125 125 125 125 125 125 125 125 125 125 125 125 Nominal Resistance Cold Ohms 7.0 1.70 0.665 0.395 0.280 0.175 0.125 0.0800 0.0468 0.0350 0.0290 0.0240 0.0200 0.0155 Nominal Melting I 2t A2 Sec. 0.000075 0.00163 0.0106 0.0254 0.0546 0.155 0.281 0.650 0.421 0.721 1.23 1.65 2.35 3.90 5A 1 25 V LF ® 45 9 .170" .325" B3 ® .285" REF. .080" .117" .065" .120" .195" RECOMMENDED PAD LAYOUT .051" REF. 1/4A 3/8A 1/2A 3/4A 1A 1 1/2A 2A 2 1/2A 3A 3 1/2A 4A 5A 1/8A 1/16A Average Time Current Curves 100 10 TIME IN SECONDS AGENCY FILE NUMBERS: UL E10480, CSA LR 29862. INTERRUPTING RATINGS: 50 amperes at 125 VAC. 300 amperes at 125 VDC. 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). Vibration: MIL-STD-202, Method 201 (10–55 Hz, .06 in. total excursion). Salt Spray: MIL-STD-202, Method 101, Test Condition B (48 hrs.). Insulation Resistance (After Opening): MIL-STD-202, Method 302, (10,000 ohms minimum at 100 volts). Resistance to Soldering Heat: MIL-STD-202, Method 210, Test Condition F (10 sec. at 260°C). Thermal Shock: MIL-STD-202, Method 107, Test Condition B (–65 to 125°C). Moisture Resistance: MIL-STD-202, Method 106, High Humidity (90-98 RH), Heat (65°). PHYSICAL SPECIFICATIONS: Materials: Body: Molded Thermoplastic Terminations: Tin-Lead Plated Copper Soldering Parameters: Wave Solder — 260°C, 10 seconds maximum Reflow Solder — 260°C, 30 seconds maximum Solderability: MIL-STD-202, Method 208. PACKAGING SPECIFICATIONS: 12mm Tape and Reel per EIA-RS481 (IEC 286, part 3); 500 per reel, add packaging suffix, UR. PATENTED ORDERING INFORMATION: 1 0.1 0.01 0.001 0.05 0.1 1 10 CURRENT IN AMPERES 100