203005

Surface Mount Fuses Subminiature Surface Mount & Dip Types FLAT-PAK® Slo-Blo® Fuse 203 Series 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. ® ® ELECTRICAL CHARACTERISTICS: % of Ampere Rating 100% 200% Opening Time 4 hours, Minimum 1 second, Minimum 30 seconds, Maximum 202 FLAT- PAK 202GFLAT- PAK Reference Dimensions: F 2A 250 V 9.45 (.372") AGENCY APPROVALS: Recognized under the Components Program of Underwriters Laboratories and Certified by CSA. F L F L 6.35 (.250") 4.19 (.165") F 2A 250 V 9.45 (.372") PAT 4563666 PAT 4563666 AGENCY FILE NUMBERS: UL E10480, CSA LR 29862. INTERRUPTING RATING: 50 amperes at 250 VAC. 6.35 (.250") 4.19 (.165") ENVIRONMENTAL SPECIFICATION: Operating Temperature: –55°C to 125°C. PHYSICAL SPECIFICATIONS: Materials: Body: Thermoplastic Terminations: Tin/Lead Plated Copper .135" 0.08 (.003") 1.40 (.055") 10.16 (.400") 0.30 (.012") 0.53 (.021") 15.24 (.600") 1.52 (.060") 6 o DIP Configuration (Thru-Hole) Mounting SMF Configuration ("Gull Wing" Surface Mount) 17.12 (.674) 4.06 (.160) 2.79 (.110) 11.53 (.454) Soldering Parameters: Wave Solder — 260°C, 3 seconds maximum. Reflow Solder — 215°C, 30 seconds maximum. Solderability: MIL-STD-202, Method 208. Cleaning: Board washable in most common solvents. Recommended Pad Layout Average Time Current Curves 1/2A 3/4A 1A 1 1/2A 2A 2 1/2A 3A 4A 5A 1 10 100 CURRENT IN AMPERES 1/4A 100 10 PACKAGING SPECIFICATIONS: SMF Fuses — 24mm Tape and Reel per EIA-RS481-2 (IEC 286, part 3); 500 per reel. DIP Fuses — Antistatic magazine, 100 per magazine. PATENTED ORDERING INFORMATION Catalog Number 203.250 203.500 203.750 203 001 203 01.5 203 002 203 02.5 203 003 203 004 203 005 1 Catalog1 Number 203.250G 203.500G 203.750G 203 001G 203 01.5G 203 002G 203 02.5G 203 003G 203 004G 203 005G Ampere Rating 1/4 1/2 3/4 1 11/2 2 21/2 3 4 5 Voltage Rating 250 250 250 250 250 250 250 250 250 250 Nominal Resistance Cold Ohms 1.36 0.433 0.158 0.0755 0.0390 0.0345 0.0237 0.0197 0.0148 0.0124 Nominal Melting I 2t A2 Sec. 0.0126 0.112 0.327 0.328 0.850 1.70 2.87 4.40 8.75 14.7 TIME IN SECONDS 1 .1 SMF fuse marking includes the letter “G” next to the series number indicating “Gull-Wing”. 0.01 0.001 0.05 0.1 1000 388 w w w. l i t t e l f u s e . c o m