Effective June 2017 Technical Data 2004 Supersedes February 2009 MDL 1/4” x 1 1/4” Time-delay glass tube fuses Agency information • UL Listed Card: MDL 1/16 - 8A (Guide JDYX, File E19180) • UL Recognized Card: MDL 9 - 30A (Guide JDYX2, File E19180) • CSA Certification Card: MDL 1/16 - 8A (Class No. 1422-01) • CSA Component Acceptance: MDL 9-30A (Class No. 1422-30) • CE Ordering • Specify packaging code Product features • Insert packaging code prefix before part number. E.g., BK (or BK1)-MDL-5-R • Time-delay • Specify option codes if desired • Optional axial leads available • For axial leads, insert “V” between catalog series and amp • 1⁄4 x 1 1⁄4 (6.4 x 31.7mm) physical size rating. E.g., BK-MDL-V-5-R • Glass tube, nickel-plated brass endcap construction • For board washable, insert “B” between catalog series and • UL Listed product meets standard 248-14 amp rating. E.g., BK-MDL-B-5-R • For axial leads and board washable, insert “B” then “V” Environmental data between catalog series and amp rating. E.g., BK-MDL-BV-5-R • Shock: 1A thru 30A – MIL-STD-202, Method 207, (HI Shock) • Vibration: 1/4A thru 30A – MIL-STD-202, Method 204, Test Condition C (Except 5g, 500HZ) Specifications Voltage Typical DC Cold Typical Typical Part Rating AC Interrupting Rating* (amps)@ Resistance** Melting I2t† Voltage Number Vac 250Vac 125Vac 32Vac (Ω) AC Drop‡ MDL-1/16-R 250 35 10000 - 45.6 0.0046 2.79 MDL-1/10-R 250 35 10000 - 15.68 0.0420 1.95 MDL-1/8-R 250 35 10000 - 12.238 0.0422 1.52 MDL-3/16-R 250 35 10000 - 4.81 0.116 1.05 MDL-2/10-R 250 35 10000 - 5.234 0.314 0.972 MDL-1/4-R 250 35 10000 - 3.208 0.447 0.965 MDL-3/10-R 250 35 10000 - 2.046 0.412 0.808 MDL-3/8-R 250 35 10000 - 1.567 0.982 1.46 MDL-1/2-R 250 35 10000 - 0.943 1.656 1.27 MDL-3/4-R 250 35 10000 - 0.397 4.343 1.01 MDL-1-R 250 35 10000 - 0.273 11.498 0.995 MDL-1-1/4-R 250 100 10000 - 0.205 86.2 0.722 MDL-1-1/2-R 250 100 10000 - 0.156 22.7 0.721 MDL-2-R 250 100 10000 - 0.116 62.3 0.644 MDL-2-1/4-R 250 100 10000 - 0.096 49.6 0.535 MDL-2-1/2-R 250 100 10000 - 0.081 63.1 0.410 MDL-3-R 250 100 10000 - 0.057 67.5 0.345 MDL-4-R 250 200 10000 - 0.038 19.3 0.187 MDL-5-R 250 200 10000 - 0.025 32.0 0.160 MDL-6-R 250 200 10000 - 0.022 37.4 0.155 MDL-6-1/4-R 250 200 10000 - 0.02 38.7 0.152 MDL-7-R 250 200 10000 - 0.018 42.7 0.140 MDL-8-R 250 200 10000 - 0.015 47.8 0.119 MDL-9-R 32 - - 1000 0.012 51.5 0.124 MDL-10-R 32 - - 1000 0.01 64.4 0.114 MDL-15-R 32 - - 1000 0.005 354.0 0.130 MDL-20-R 32 - - 1000 0.004 2914.0 0.530 MDL-25†† 32 - - 1000 0.01225 15221.0 0.30 MDL-30†† 32 - - 1000 0.0011 15581.0 0.40 * Interrupting Ratings (Interrupting ratings were measured at 70% - 80% power factor on AC) ** DC Cold Resistance (Measured at ≤10% of rated current) † Typical Melting I2t (A2Sec) (I 2t was measured at listed interrupting rating and rated voltage.) ‡ Typical Voltage Drop (Voltage drop was measured at 25°C±3°C ambient temperature at rated current) ††MDL-25 & MDL-30 not available in RoHS compliant construction.

Technical Data 2004 MDL Effective June 2017 1/4” x 1 1/4” Time-delay glass tube fuses Time-Current Curve Dimensions - mm (in) Drawing Not to Scale Current in Amps 38.10 32.82 38.10 (1.500) (1.292) (1.500) 6.76 DIA. OF LEADS (0.266) 0.81 0–15 AMP: (0.032) 1.02 20–30 AMP: (0.040) 31.75 6.35 (1.250) (0.250) Time in Seconds Time in Seconds Current in Amps Packaging Code Packaging Code 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 www.eaton.com/electronics © 2017 Eaton All Rights Reserved Eaton is a registered trademark. Printed in USA Publication No. 2004 SB-BU08675 All other trademarks are property June 2017 of their respective owners.

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