BK/MDA-1/2-R Eaton

Effective August 2020 Technical Data 2002 Supersedes July 2017 MDA HALOGEN HF Pb 1/4 x 1 1/4 Time-delay ceramic tube fuses FREE Agency information UL Listed Card: MDA 1/4 - 20 A (Guide JDYX, File E19180) UL Recognized Card: MDA 25 - 30 A (Guide JDYX2, File E19180) CSA Certification Card: MDA 1/4 - 20 A (Class No. 1422-01) CSA Component Acceptance: MDA 25 - 30 A (Class No. 1422-30) General specifications Shock: 1 A thru 30 A MIL-STD-202, Method 213, Test Condition J Product features Vibration: 1/4 A thru 30 A MIL-STD-202, Method 204, Test Condition C (Except 5 g, 500 Hz) Time-delay Optional axial leads available 1/4 x 1-1/4 (6.35 x 31.75 mm) physical size Ceramic tube, nickel-plated brass endcap construction Ordering UL Listed product meets standard 248-14 Specify packaging code prefix, part number and and option code. Replace the with a (i.e. BK-MDA-BV-1-4-R) Electrical characteristics Rated current Amp rating Opening time 100% None 1/4 - 30 A 135% 60 minutes max. 200% 120 seconds max. Specifications AC interrupting Part Voltage rating rating* (A) DC interrupting Typical DC cold Typical Typical voltage 2 rating (A) 125 V number Vac Vdc 250 V 125 V resistance** () melting I t AC drop MDA-1/4-R 250 - 35 10000 - 8.7 0.748 4.00 MDA-1/2-R 250 - 35 10000 - 1.78 2.53 1.42 MDA-3/4-R 250 - 35 10000 - 0.82 8.58 1.31 MDA-1-R 250 - 35 10000 - 0.56 12.21 1.03 MDA-1-1/2-R 250 - 100 10000 - 0.2565 27.5 0.691 MDA-2-R 250 - 100 10000 - 0.17 70.4 0.623 MDA-2-1/2-R 250 125 200 10000 10000 0.068 31.79 0.213 MDA-3-R 250 125 200 10000 10000 0.0525 44.99 0.182 MDA-4-R 250 125 200 10000 10000 0.03575 147.4 0.162 MDA-5-R 250 125 200 10000 10000 0.0256 380.49 0.145 MDA-6-R 250 125 200 10000 10000 0.02035 587.73 0.141 125 10000 MDA-7-R 250 200 10000 0.0165 638.33 0.137 10000 MDA-8-R 250 125 200 10000 0.013 1038.4 0.134 10000 MDA-10-R 250 125 200 10000 0.00925 1620.43 0.135 10000 MDA-12-R 250 125 750 10000 0.00755 125.18 0.128 125 10000 MDA-15-R 250 750 10000 0.00565 336.82 0.107 MDA-20-R 250 125 1500 10000 10000 0.004065 483.45 0.095 MDA-25-R 250 125 1500 10000 10000 0.0031 734.69 0.105 MDA-30-R 250 125 1500 10000 10000 0.002465 1096.7 0.110 * Interrupting ratings (Measured at 70% - 80% power factor on AC. The interrupting ratings for 25 A, 30 A were measured at 90% - 100% power factor on AC) ** DC Cold resistance (Measured at <10% of rated current) 2 2 2 Typical melting I t (A sec) (I t was measured at listed interrupting rating and rated voltage) Typical voltage drop (Voltage drop was measured at +25 C ambient temperature at rated current)MDA Technical Data 2002 Effective August 2020 1/4 x 1 1/4 Time-delay ceramic tube fuses Time-current curves (7 A - 30 A) Time-current curves (1/4 A - 6 1/4 A) Dimensions - mm (in) Drawing Not to Scale 38.10 32.82 38.10 (1.500) (1.292) (1.500) 6.76 DIA. OF LEADS (0.266) 0.81 015 AMP: (0.032) 1.02 2030 AMP: (0.040) 31.75 6.35 (1.250) (0.250) Packaging code Packaging code pref ix Description BK- 100 fuses packed into a cardboard carton Option code Option code Description B Sealed to withstand aqueous cleaning (Board washable) V Axial leads - copper tinned wire with nickel plated brass overcaps Life Support Policy: Eaton does not authorize the use of any of its products for use in life support devices or systems without the express written approval of an officer of the Company. Life support systems are devices which support or sustain life, and whose failure to perform, when properly used in accordance with instructions for use provided in the labeling, can be reasonably expected to result in significant injury to the user. Eaton reserves the right, without notice, to change design or construction of any products and to discontinue or limit distribution of any products. Eaton also reserves the right to change or update, without notice, any technical information contained in this bulletin. Eaton Electronics Division 1000 Eaton Boulevard Cleveland, OH 44122 United States Eaton.com/electronics Follow us on social media to get the 2020 Eaton Eaton is a registered trademark. latest product and support information. All Rights Reserved Printed in USA All other trademarks are property Publication No. 2002 of their respective owners. August 2020