Technical Data 2019
Effective April 2020
Supersedes May 2017
Product features
Agency information
•UL Listed, Guide JDYX, File E19180
•UL Recognition Card (4 A), Guide JDYX2, File
E19180
•CSA Certified, Class 1422-01, File 53787
•PSE/JET, File 1641-31003-1001
Ordering
•
•
Specify product code: Insert packaging code prefix
before part number. E.g. BK-GMD-250-R
Specify option code if desired: For axial leads, insert
“V” between catalog series and amp rating. E.g.
BK-GMD-V-250-R
•With TR2 packaging code, lead wire length is 19.05mm
GMD
5 mm x 20 mm Time-delay glass tube fuses
•Time-delay, low breaking capacity
•Optional axial leads available
•5 x 20 mm physical size
•Nickel-plated brass endcap construction
•Designed to UL/CSA 248-14
•
Electrical characteristics
Rated current % of Amp rating Opening time
100%None
125 mA - 4 A135%60 minutes maximum
200%5 seconds minimum
2 minutes maximum
Specications
Voltage Interrupting rating (A)
rating at rated voltage (50 Hz)
Vac 250 Vac 125 Vac
Typical DC Typical Typical
Agency approvals
Part number cold resistance melting I
2
tvoltage
UL PSE CSA
(A2s)† drop (mV)‡
JET
GMD-125-R 250 35 10,000
9.91
0.043
1800
X X
GMD-150-R 250 35 10,000 6.065 0.046 1200 X X
GMD-200-R 250 35 10,000
3.215 0.20
1100 X X
GMD-250-R 250 35 10,000
2.400 0.40
950 X X
GMD-300-R 250 35 10,000
1.625 0.65
800 X X
GMD-315-R 250 35 10,000
1.555 0.89
750 X X
GMD-375-R 250 35 10,000
1.0645 0.89
650 X X
GMD-400-R 250 35 10,000
0.948
1.2 600 X X
GMD-500-R 250 35 10,000
0.629
1.4 550 X X
GMD-600-R 250 35 10,000
0.4425
3.1 450 X X
GMD-630-R 250 35 10,000
0.4475
3.1 450 X X
GMD-750-R 250 35 10,000
0.3065
4.7 410 X X
GMD-800-R 250 35 10,000
0.299
6.6 380 X X
GMD-1-R 250 35 10,000
0.1995
12 310 X X X
GMD-1.2-R 250 100 10,000
0.158
16 280 X X X
GMD-1.25-R 250 100 10,000
0.124
16 245 X X X
GMD-1.5-R 250 100 10,000
0.107
25 240 X X X
GMD-1.6-R 250 100 10,000
0.905
27 220 X X X
GMD-2-R 250 100 10,000
0.655
42 200 X X X
GMD-2.5-R 250 100 10,000
0.48
94 195 X X X
GMD-3-R 250 100 10,000
0.37
145 190 X X X
GMD-4-R 250 200 10,000
0.28
300 190 UR X
* Interrupting ratings (Interrupting ratings for 125mA - 3A were measured at 70% - 80% power factor on AC. The interrupting ratings for 4A were measured at 100%
power factor on AC)
** Typical DC cold resistance (measured at <10% of rated current)
† Typical melting I2t (I2t was measured at listed interrupting rating and rated voltage)
‡ Typical voltage drop (voltage drop was measured at +20 °C ambient temperature at rated current)
(Ω)**
X
© 2020 Eaton
All Rights Reserved
Printed in USA
Publication No. 2019
April 2020
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
GMD
5 mm x 20 mm Time-delay glass tube fuses
Technical Data 2019
Effective April 2020
( 00.5)
5.2mm
(+0.1/-0.2)
(±
38.10mm
(±.38)
21.10mm
(±.81)
0.65mm
(REF)
(±.38)
5.54mm
(±.20)
Dimensions - mm
Time-Current Curve
Packaging code
Packaging prefix Description
BK 100 fuses packed into a cardboard carton
BK11,000 fuses packed into a poly bag
TR2 1,500 fuses packed into tape on a reel (19.05mm lead wire length)
Option code
Option codeDescription
VAxial leads - copper tinned wire with nickel plated brass endcaps
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