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
14 x 1 14 (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
between catalog series and amp rating. E.g., BK-MDL-BV-5-R
Environmental data
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)
Speci cations
Voltage Typical DC Cold Typical Typical
2
AC Interrupting Rating* (amps)@
Part Rating Resistance** Melting I t Voltage
Number Vac 250Vac 125Vac 32Vac () 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)
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 25C3C ambient temperature at rated current)
MDL-25 & MDL-30 not available in RoHS compliant construction.Time in Seconds
MDL
Technical Data 2004
Effective June 2017 1/4 x 1 1/4 Time-delay glass tube fuses
Time-Current Curve
Dimensions - mm (in)
Current in Amps
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)
Current in Amps
Packaging Code
Packaging Code Description
BK 100 fuses packed into a cardboard carton
BK1 1,000 fuses packed into a cardboard carton
BK8 8,000 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
Eaton is a registered trademark.
All Rights Reserved
Printed in USA
All other trademarks are property
Publication No. 2004 SB-BU08675
of their respective owners.
June 2017
Time in Seconds