BK/MDA-1/16

1/4" x 1-1/4" Fuses MDA Series, Time Delay, Ceramic Tube Description • Time Delay, ceramic tube • Optional axial leads available • 1/4 x 1-1/4 (6.3mm x 32mm) physical size • Ceramic tube, nickel-plated brass endcap construction • UL Listed product meets standard 248-14 ELECTRICAL CHARACTERISTICS Amp Rating Opening Time Rated Current None 100% 1/4 - 30A 135% 60 Minutes Max. 200% 120 Seconds Max. Agency Information • UL Listed Card: MDA 2/10 - 20A (Guide JDYX, File E19180) • UL Recognized Card: MDA 25 - 30A (Guide JDYX2, File E19180) • CSA Certification Card: MDA 2/10 - 20 (Class No. 1422-01) • CSA Component Acceptance: MDA 25-30A (Class No. 1422-30) Environmental Data • Shock: 1/100A and 8/10A – MIL-STD-202, Method 213, Test Condition I; 1A thru 30A – MIL-STD-202, Method 207, (HI Shock) • Vibration: 1/100A and 8/10A – MIL-STD-202, Method 201; 1/4A thru 30A – MIL-STD-202, Method 204, Test Condition C (Except 5g, 500HZ) Ordering • Specify packaging, product, and option code RoHS 2002/95/EC Dimensions (mm⁄in) Drawing Not to Scale SPECIFICATIONS Product Code MDA-1/4 MDA-1/2 MDA-3/4 MDA-1 MDA-1-1/2 MDA-2 MDA-2-1/2 MDA-3 MDA-4 MDA-5 MDA-6 MDA-7 MDA-8 MDA-10 MDA-12 MDA-15 MDA-20 MDA-25A MDA-30A * ** † ‡ Voltage Rating AC DC 250V 250V 250V 250V 250V 250V 250V 250V 250V 250V 250V 250V 250V 250V 250V 250V 250V 125V 250V 125V 250V 125V AC Interrupting Rating* 250V 125V 35A 10000A 35A 10000A 35A 10000A 35A 10000A 100A 10000A 100A 10000A 200A 10000A 200A 10000A 200A 10000A 200A 10000A 200A 10000A 200A 10000A 200A 10000A 200A 10000A 750A 10000A 10000A 750A 1500A 10000A 1500A 10000A 1500A 10000A DC Interrupting Rating 125V 10000A 10000A 10000A Typical DC Cold Resistance** (ohms) 9.325 1.925 0.8555 0.560 0.2585 0.1645 0.06685 0.0507 0.0346 0.02355 0.01850 0.01475 0.01230 0.00858 0.00725 0.00543 0.00358 0.00309 0.00243 Typical Melting I2t† AC 0.68 2.3 7.8 11.1 25.0 64.0 28.9 40.9 134.0 345.9 534.3 580.3 944.0 1491.3 113.8 206.2 439.5 667.9 997.0 Typical Voltage Drop‡ 4.00 1.42 1.31 1.03 0.691 0.623 0.213 0.182 0.162 0.145 0.141 0.137 0.134 N/A 0.114 0.107 0.095 0.105 0.110 Interrupting Ratings (Measured at 70% - 80% power factor on AC. The interrupting ratings for 25Amp, 30Amp were measured at 90% - 100% power factor on AC) DC Cold Resistance (Measured at ≤10% of rated current) Typical Melting I2t (A2Sec) (I2t was measured at listed interrupting rating and rated voltage) Typical Voltage Drop (Voltage drop was measured at 25°C ambient temperature at rated current) 1/4" x 1-1/4" Fuses MDA Series, Time Delay, Ceramic Tube TIME CURRENT CURVE 10 12 15 20 25 30 3-2/10 4 5 6-1/4 2 1 1/2 TIME IN SECONDS TIME IN SECONDS 1/4 CURRENT IN AMPERES CURRENT IN AMPERES PACKAGING CODE Packaging Code BK BK1 BK8 Description 100 pieces of fuses packed into a cardboard carton 1,000 pieces of fuses packed into a cardboard carton 8,000 pieces of fuses packed into a cardboard carton OPTION CODE Option Code B V -R Visit us on the web at: www.cooperbussmann.com OC-2545 3/07 © Cooper Electronic Technologies 2007 Description Board Washable - Hermetically sealed to withstand aqueous cleaning Axial leads - copper tinned wire with nickel plated brass overcaps RoHS compliant version North America Cooper Electronic Technologies Cooper Bussmann 1225 Broken Sound Parkway NW P.O. Box 14460 Suite F St. Louis, MO 63178-4460 Boca Raton, FL 33487-3533 Tel: 1-636-394-2877 Tel: 1-561-998-4100 Fax: 1-800-544-2570 Fax: 1-561-241-6640 Toll Free: 1-888-414-2645 Europe Cooper Electronic Technologies Cooper Electronic Technologies Cooper (UK) Limited Avda. Santa Eulalia, 290 Burton-on-the-Wolds 08223 Leicestershire • LE12 5TH UK Terrassa, (Barcelona), Spain Tel: +44 (0) 1509 882 737 Tel: +34 937 362 812 Fax: +44 (0) 1509 882 786 +34 937 362 813 Fax: +34 937 362 719 Asia Pacific Cooper Electronic Technologies 1 Jalan Kilang Timor #06-01 Pacific Tech Centre Singapore 159303 Tel: +65 278 6151 Fax: +65 270 4160