SMD TRON Surface Mount Fuses SFT Series Description Fast Acting Surface Mount Fuse Solid matrix design encapsulated in a 94V-O thermoplastic body Copper Leads with a tin/lead finish Fuses marked with catalog symbol, ampere rating, and voltage rating ELECTRICAL CHARACTERISTICS % of Amp Rating Opening Time 100% 4 Hours Minimum 200% 60 Seconds Maximum 250% 5 Seconds Maximum Dimensional Data .29 ( .015) Agency Information (7.47 mm) ( .006) UL Recognition Guide and File numbers: JDYX2 & E19180 (0-10A, 12.5A AC only) .17 ( .015) (4.32 mm) ( .006) CSA Certification Record No: Class 1422-01, File 53787 Environmental Data .118 ( .004) (3.00 mm) ( .10) Resistance to Solder Heat: MIL-STD-202F, Method B Vibration: MIL-STD-202F, Method 204 Test Condition A (1.27 mm) .05 .09 ( .015) Soldering Method (2.29 mm) ( .006) Wave Immersion: 260C, 10 sec max Trace Geometry IR Reflow: 260C, 30 sec max .060 060 Detail A Ordering .350 .100 Specify product code and packaging code 000 .114 .0555 Electrical Characteristics Typical Voltage 3 2 Rated Interrupting Pre-arcing Typical Total Clearing Drop Volts at 1 2 2 2 2 Product Voltage Rating I T (A sec) I T (A sec) 100% Rated Code AC (Max.) DC (Max.) AC DC AC DC AC DC Current SFT-63mA 125V 125V 50A 300A SFT-125mA 125V 125V 50A 300A -5 -6 -4 -6 SFT-250mA 125V 125V 50A 300A 7.49 x 10 5.1 x 10 2.0 x 10 6.29 x 10 .8 -4 -5 -4 -5 SFT-375mA 125V 125V 50A 300A 3.17 x 10 2.18 x 10 4.18 x 10 2.67 x 10 .75 -4 -5 -4 -5 SFT-500mA 125V 125V 50A 300A 4.46 x 10 3.8 x 10 5.74 x 10 4.63 x 10 .66 -3 -4 -3 -4 SFT-750mA 125V 125V 50A 300A 1.72 x 10 2.27 x 10 2.59 x 10 2.77 x 10 .525 SFT-1 125V 125V 50A 300A .0099 .0069 .0114 .0076 .12 SFT-1.5 125V 125V 50A 300A .0302 .0204 .0345 .0246 .20 SFT-2 125V 125V 50A 300A .0784 .0651 .0891 .0811 .170 SFT-2.5 125V 125V 50A 300A .1775 .1390 .2383 .1574 .145 SFT-3 125V 125V 50A 300A .3355 .2419 .4359 .2664 .130 SFT-3.5 125V 125V 50A 300A .4980 .3812 .6355 .4696 .155 SFT-4 125V 125V 50A 300A .8855 .6785 1.0740 .7829 .135 SFT-5 125V 125V 50A 300A 1.7264 1.2912 2.3779 1.3556 .125 SFT-7.0A 60V 90V 50A 300A 1.64 .518 1.97 .573 .114 SFT-10.0A 60V 90V 50A 300A 3.79 1.06 3.92 1.67 .130 SFT-12.5A 48V 60V 50A 300A 15 4.04 20 4.28 .090 NOTE: SFT 12.5A is UL recognized on AC Only. 1. Interrupting ratings were measured at 100% power factor on AC, and a time constant less than 1ms on DC. 2. Voltage drop was measured at 25C 3C ambient temperature at rated current with device mounted on a circuit trace. 2 3. I t measured at 50 amp, 125 VAC, .95PF, random closing angle 300 amps, 125 VDC, TC<1ms. 4. Device designed to carry 100% of rated current for four hours minimum. An operating current of 80% or less of rated current is recommended, with further derating required at elevated ambient temperatures. OBSOLETE Recommended Replacement 6125FA See Data Sheet OC-2531 4.800 4.550 BUSS SFT 5A 125V 2.550 A123 2.495 2.305 2.250 .250 000 SMD TRON Surface Mount Fuses SFT Series Time-Current Characteristic CurvesAverage Melt (Full Size Curves Available) AMPERE RATING 10 1 .1 .01 CURRENT IN AMPERES PACKAGING CODE Packaging Code Description Blank 10 pieces TR 500 pieces of fuses on 16mm tape-and-reel on a 7 inch reel per EIA Standard 481 Visit us on the web at: North America Europe Asia Pacific www.CooperET.com Cooper Electronic Technologies Cooper Bussmann Cooper Electronic Technologies Cooper Electronic Technologies 3601 Quantum Boulevard P.O. Box 14460 Cooper (UK) Limited 1 Jalan Kilang Timor OC-2591 7/05 Boynton Beach, FL 33426-8638 St. Louis, MO 63178-4460 Burton-on-the-Wolds 06-01 Pacific Tech Centre Tel: 1-561-752-5000 Tel: 1-636-394-2877 Leicestershire LE12 5TH UK Singapore 159303 Cooper Electronic Fax: 1-561-742-0134 Fax: 1-800-544-2570 Tel: +44 (0) 1509 882 737 Tel: +65 278 6151 Technologies 2005 Toll Free: 1-888-414-2645 Fax: +44 (0) 1509 882 786 Fax: +65 270 4160 OBSOLETE Recommended Replacement 6125FA See Data Sheet OC-2531 TIME IN SECONDS 250mA 375mA 500mA 1 750mA 1A 1.5A 2A 2.5A 3A 3.5A 10 5A 7A 10A 12.5A