0203.750H Littelfuse

Surface Mount Fuses FLAT-PAK Slo-Blo Fuse > 203 Series 203 Series Fuse Description Fast-Acting and Slo-Blo Fuse versions of the Flat-Pak Fuse designs are available. Both designs are available in either a gull-wing surface mount package or a DIP configuration for through-hole mounting. These fuse designs feature a 250 VAC rating in a low profile, rectangular package. Agency Approvals AGENCY FILE AGENCY AMPERE RANGE NUMBER E10480 1/4mA - 5A LR29862 1/4mA - 5A Electrical Characteristics for Series % of Ampere Opening Time Rating 100% 4 hours, Minimum 200% 1 second, Min 30 seconds Max. Electrical Specifications by Item Max Agency Approvals Ampere Nominal Cold Voltage Interrupting Nominal Melting Rating Amp Code Resistance 2 2 Rating Rating I t (A sec) (A) (Ohms) (V) 0.25 .250 250 1.36 0.0126 x x 0.50 .500 250 0.433 0.112 x x 0.75 .750 250 0.158 0.327 x x 1.00 001. 250 0.0755 0.328 x x 1.50 01.5 250 0.0390 0.850 x x 50 amperes 250 VAC 2.00 002. 250 0.0345 1.70 x x 2.50 02.5 250 0.0237 2.87 x x 3.00 003. 250 0.0197 4.40 x x 4.00 004. 250 0.0148 8.75 x x 5.00 005. 250 0.0124 14.7 x x 2009 Littelfuse, Inc. 203 Series 119 Specifications are subject to change without notice. Revised: March 17, 2009 Please refer to www.littelfuse.com/series/203.html for current information. 203 Series IntrIntroduction toduction tSurfoo Cir Cirace Mount Fcuit Prcuit Prototectionectionuses FLAT-PAK Slo-Blo Fuse > 203 SeriesTransientology Temperature Rerating Curve Average Time Current Curves 100 10 1 .1 Note: 0.01 1. Derating depicted in this curve is in addition to the standard derating of 25% for continuous operation. 0.001 0.05 0.1 1 10 100 1000 CURRENT IN AMPERES Soldering Parameters Wave Soldering 260C, 3 seconds max. Reflow Soldering 215C, 30 seconds max. 2009 Littelfuse, Inc. 203 Series 120 Specifications are subject to change without notice. Revised: March 17, 2009 Please refer to www.littelfuse.com/series/203.html for current information. TIME IN SECONDS 1/4A 1/2A 3/4A 1A 1 1/2A 2 A 2 1/2A 3A 4A 5A