1/4" x 1-1/4" Fuses MDQ Series Dual Element, Time Delay, Glass Fuse Description * Dual element, time delay * 1/4" x 1-1/4" (6.3mm x 32mm) physical size * Glass tube, nickel-plated brass endcap construction * Mounts in Buss HTB panel-mounted HB Series PC board fuseholders, Series 8000 fuseblocks and 1/4" clips * UL Listed product meets standard 248-14 ELECTRICAL CHARACTERISTICS Rated Current % of Amp Rating Opening Time 100% None 1/16A - 30A 135% 60 minutes maximum 200% 120 seconds maximum Dimensions mm (inches) Approvals * UL Listed Card: MDQ-1/16 - 7A (Guide JDYX, File E19180) * UL Recognition Card: MDQ-7.5 - 30A (Guide JDYX2, File E19180) * CSA Component Acceptance Card: MDQ-1/100 - 30 (Class 1422-01) Ordering * Specify product code, option code and packaging code SPECIFICATIONS Voltage Rating Product Code MDQ-1/16 MDQ-1/10 MDQ-1/8 MDQ-3/16 MDQ-2/10 MDQ-1/4 MDQ-3/10 MDQ-3/8 MDQ-1/2 MDQ-3/4 MDQ-1 MDQ-1-1/4 MDQ-1-1/2 MDQ-2 MDQ-2-1/4 MDQ-2-1/2 MDQ-3 MDQ-4 MDQ-5 MDQ-6 MDQ-6-1/4 MDQ-7 MDQ-8 MDQ-9 MDQ-10 MDQ-15 MDQ-20 MDQ-25 MDQ-30 AC 250V 250V 250V 250V 250V 250V 250V 250V 250V 250V 250V 250V 250V 250V 250V 250V 250V 250V 250V 250V 250V 250V 32V 32V 32V 32V 32V 32V 32V DC - ** DC Cold Resistance (Measured at <10% of rated current) Interrupting Rating AC 35A 35A 35A 35A 35A 35A 35A 35A 35A 35A 35A 100A 100A 100A 100A 100A 100A 200A 200A 200A 200A 200A 1,000A 1,000A 1,000A 1,000A 1,000A 1,000A 1,000A Typical DC Cold Resistance (ohms)** 83.30000 35.00000 21.50000 10.00000 8.65000 5.77500 4.20000 2.35000 1.40000 0.39685 0.37400 0.36000 0.27000 0.13250 0.11450 0.10050 0.05715 0.03510 0.02650 0.01715 0.01690 0.01375 0.01200 0.00888 0.00720 0.00410 0.00150 0.00123 0.00105 Typical Melt I2t AC DC - Typical Voltage Drop (V) - 1/4" x 1-1/4" Fuses MDQ Series Dual Element, Time Delay, Glass Fuse TIME CURRENT CURVE 15 20 25 30 10 3-2/10 5 6-1/4 1 1-1/4 1/2 3/10 2/10 TIME IN SECONDS TIME IN SECONDS 1/10 1-1/2 1-6/10 2 CURRENT IN AMPERES CURRENT IN AMPERES OPTION CODE Option Code B V Description Board Washable - Hermetically sealed to withstand aqueous cleaning Axial leads - brass overcaps with copper and nickel flash, plated in tin lead PACKAGING CODE Packaging Code BK BK1 OC-2594 7/01 (c) Cooper Electronic Technologies 2001 Description 100 pieces of fuses packed into a cardboard carton with flaps folded 1,000 pieces of fuses packed into a cardboard carton with flaps folded Visit us on the Web at www.cooperET.com 3601 Quantum Boulevard Boynton Beach, Florida 33426-8638 Tel: +1-561-752-5000 Toll Free: +1-888-414-2645 Fax: +1-561-742-1178 This bulletin is intended to present product design solutions and technical information that will help the end user with design applications. Cooper Electronic Technologies reserves the right, without notice, to change design or construction of any products and to discontinue or limit distribution of any products. Cooper Electronic Technologies also reserves the right to change or update, without notice, any technical information contained in this bulletin. Once a product has been selected, it should be tested by the user in all possible applications.