Introduction to & Cartridge Fuses
Axial Lead Circuit Protection
Transientology
5×20 mm > Time Lag > 239 Series
Electrical Characteristic Specification by Item
Voltage
Rating
(V)
250
250
250
250
250
250
250
250
250
250
250
250
250
250
250
250
250
250
250
250
250
250
125
125
125
Nominal Cold
Resistance
(Ohms)
28.1750
17
.3425
11.6000
8.1000
3.8725
3.0700
2.3000
1.4750
0.9090
0.6990
0.5375
0.4710
0.4155
0.2965
0.1980
0.1205
0.0943
0.0583
0.04877
0.0414
0.0385
0.0370
0.0312
0.0199
0.0114
Nominal
Melting
2
I t (A
2
sec)
0.02500
0.05500
0.08500
0.13000
0.16500
0.34000
0.61500
1.49000
1.98500
2.41500
4.12000
5.42500
7
.56500
11.29500
19.52500
30.43000
50.58500
79.70500
129.51000
128.05000
128.05000
128.05000
270.703
302.836
305.758
Agency Approvals
PS
E
Amp Code
.080
.100
.125
.150
.200
.250
.300
.400
.500
.600
.700
.750
.800
001.
1.25
01.6
002.
02.5
003.
3.15
03.2
03.5
004.
005.
007.
Amp Rating
(A)
0.08
0.1
0.125
0.15
0.2
0.25
0.3
0.4
0.5
0.6
0.7
0.75
0.8
1
1.25
1.6
2
2.5
3
3.15
3.2
3.5
4
5
7
Interrupting
Rating
35A @ 250 VAC
35A @ 250 VAC
10000A @ 125 VAC
10000A @ 125 VAC
100A @ 250 VAC
10000A @ 125 VAC
239 Series
308
© 2009 Littelfuse, Inc.
Specifications are subject to change without notice.
Please refer to www.littelfuse.com/series/239.html for current information.
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