• Glass tube, nickel-plated brass endcap construction
• Designed to UL/CSA 248-14
ELECTRICAL CHARACTERISTICS
Rated Current % of Amp Rating
Opening Time
100%
None
135%
60 minutes maximum
100mA - 4A
5 seconds minimum
200%
2 minutes maximum
RoHS
2002/95/EC
Dimensions
mm
⁄
(inches)
5.54mm
(±.20)
38.10mm
(±.38)
Agency Information
• UL Listed, Guide JDYX, File E19180, 125mA-3A
• UL Recognition Card: (4A) Guide JDYX2, File E19180
• CSA Certified, Class 1422-01, File E65063
Ordering
• Specify packaging, product, and option code
• For -R option, drop mA or A from product code
(i.e. GMD-3-R)
21.10mm
(±.81)
(±
( 0.5)
5.2mm
(+0.1/-0.2)
0.65mm
(REF)
(±.38)
SPECIFICATIONS
Product Code
GMD-125mA
GMD-150mA
GMD-200mA
GMD-250mA
GMD-300mA
GMD-315mA
GMD-375mA
GMD-400mA
GMD-500mA
GMD-600mA
GMD-630mA
GMD-750mA
GMD-800mA
GMD-1A
GMD-1.2A
GMD-1.25A
GMD-1.5A
GMD-1.6A
GMD-2A
GMD-2.5A
GMD-3A
GMD-4A
*
**
†
‡
Traditional Ferrule Fuses - Ferrule Type
Voltage
Rating
AC
250V
250V
250V
250V
250V
250V
250V
250V
250V
250V
250V
250V
250V
250V
250V
250V
250V
250V
250V
250V
250V
250V
AC Interrupting
Rating*
250V
125V
35A
10,000A
35A
10,000A
35A
10,000A
35A
10,000A
35A
10,000A
35A
10,000A
35A
10,000A
35A
10,000A
35A
10,000A
35A
10,000A
35A
10,000A
35A
10,000A
35A
10,000A
35A
10,000A
100A
10,000A
100A
10,000A
100A
10,000A
100A
10,000A
100A
10,000A
100A
10,000A
100A
10,000A
200A
10,000A
Typical DC Cold
Resistance
(ohms)**
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
Typical
Pre-Arc I
2
t
AC†
0.043
0.046
0.20
0.40
0.65
0.89
0.89
1.2
1.4
3.1
3.1
4.7
6.6
12
16
16
25
27
42
94
145
300
Maximum
Voltage
Drop (mV)‡
1600
1200
1100
950
800
750
650
600
550
450
450
410
380
310
280
245
240
220
200
195
190
190
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.
DC Cold Resistance (Measured at <10% of rated current)
Typical Pre-Arching I
2
t (I
2
t was measured at listed interrupting rating and rated voltage)
Maximum Voltage drop (Voltage drop was measured at 20°C ambient temperature at rated current)
OC-78
5mm x 20mm Fuses
GMD Series, Time Delay, Glass Tube
TIME CURRENT CURVE
750mA
800mA
125mA
160mA
200mA
300mA
400mA
500mA
630mA
1.6A
1.5A
2A
2.5A
3A
100
AMPERE
RATING
10
TIME IN SECONDS
1
.1
.1
CURRENT IN AMPERES
PACKAGING CODE
Packaging Code
BK
BK1
TR2
Description
100 pieces of fuses packed into a cardboard carton
