Surface Mount Fuses Subminiature Surface Mount RoHS NANO2® UMF Fast-Acting Fuse 455 Series • The Nano2 UMF Fuse is a very small, square surface mount fuse design. • Designed to International (IEC) Standards for use globally. • Meets IEC 60127-4 UMF specifications for Fast-Acting Fuses • RoHS Compliant version now available, use ordering suffix ‘L’ (see example on data sheet). ELECTRICAL CHARACTERISTICS: % of Ampere Rating Opening Time 125% 1 hour, Minimum 200% 1000% 2 minutes, Maximum 0.001 sec, Min; .01 sec Max AGENCY APPROVALS: Listed to IEC 60127-4, Universal Modular FuseLinks (UMF), 125V. 6.10 (.240") 6.86 (.270") AGENCY FILE NUMBERS: UL E184655. INTERRUPTING RATINGS: 50 amperes at 125 VAC/VDC 3.15 (.124") ENVIRONMENTAL SPECIFICATIONS: Operating Temperature: –55°C to 125°C. Shock: MIL-STD-202, Method 213, Test Condition I 2.95 (.116") F 1A 1.45 (.057") 1.96 (.077") Recommended pad layout (100 G’s peak for 6 milliseconds). 2.69 (.106") 2.69 (.106") Vibration: MIL-STD-202, Method 201 (10–55 Hz). Salt Spray: MIL-STD-202, Method 101, Test Condition B. Insulation Resistance (After Opening): MIL-STD-202, Method .4A .5A Resistance to Soldering Heat: MIL-STD-202, Method 210, Test Condition B (10 sec. at 260°C). 1A 1.6A Average Time Current Curves 302, Test Condition A, (10,000 ohms minimum). 100 Thermal Shock: MIL-STD-202, Method 107, Test Condition B (–65 to 125°C). Moisture Resistance: MIL-STD-202, Method 106, High Humidity (9098 RH), Heat (65°C). Terminations: Tin-Lead Alloy RoHS Compliant Terminations: Gold over Nickel Plated Caps .Soldering Parameters: Wave Solder — 260°C, 10 seconds maximum Reflow Solder — 260°C, 30 seconds maximum Solderability: MIL-STD-202, Method 208. TIME IN SECONDS 10 PHYSICAL SPECIFICATIONS: Materials: Body: Ceramic 1 0.1 PACKAGING SPECIFICATIONS: 12mm Tape and Reel per EIA-RS481-1 (IEC 286, part3); 1,000 pieces per reel, add packaging suffix, MR; 5,000 per reel, add packaging suffix NR. Options: For RoHS Compliant devices add the letter ‘L’ to end of packaging suffix. Example: 0455001.NRL (RoHS Compliant 1A, 5,000 per reel). 0.01 PATENTED ORDERING INFORMATION: Catalog Number 0455.400 0455.500 0455 001. 0455 01.6 Ampere Rating 0.4 0.5 1.0 1.6 Nominal Voltage Cold Resistance Rating (Ohms)1 125 0.420 125 0.305 125 0.078 125 0.0532 Nominal Melting I2t (A2 sec) 0.0795 0.143 0.645 1.060 0.001 0.05 0.1 1 Measured at 10% of rated current, 25°C. 376 w w w. l i t t e l f u s e . c o m 1 10 100 CURRENT IN AMPERES 1000