Surface Mount Fuses
Introduction to Circuit Protection
NANO2® > Very Fast-Acting > 451/453 Series
Transientology
Electrical Specifications by Item
Max
Voltage
Rating
(V)
Agency Approvals
Ampere
Rating
(A)
Nominal Cold
Resistance
(Ohms)
Nominal
Melting
Amp
Code
Interrupting
Rating
PS
E
I2t (A2sec)
0.062
0.080
0.100
0.125
0.160
0.200
0.250
0.315
0.375
0.400
0.500
0.630
0.750
0.800
1.00
.062
.080
.100
.125
.160
.200
.250
.315
.375
.400
.500
.630
.750
.800
001.
1.25
01.5
01.6
002.
02.5
003.
3.15
03.5
004.
005.
06.3
007.
008.
125
125
125
125
125
125
125
125
125
125
125
125
125
125
125
125
125
125
125
125
125
125
125
125
125
125
125
125
5.5000
4.0500
3.1000
1.7000
1.2157
0.8372
0.5765
0.3918
0.6100
0.5600
0.4200
0.3050
0.2450
0.2120
0.1530
0.0780
0.0630
0.0580
0.0367
0.0286
0.0227
0.0215
0.0200
0.0160
0.0125
0.0096
0.0090
0.0077
0.00019
0.00033
0.00138
0.00286
0.0048
0.0089
0.0158
0.0311
0.0425
0.0484
0.0795
0.143
x
x
x
x
x
x
x
x
x
x
x
x
x
x
x
x
x
x
x
x
x
x
x
x
x
x
x
x
x
x
x
x
x
x
x
x
x
x
x
50ꢀamperesꢀ@125VAC/VDCꢀ
300ꢀamperesꢀ@32VDC
0.185
0.271
PSE: 100 amperes
0.459
x
x
x
x
x
x
x
x
x
x
x
x
x
x
x
x
x
x
x
x
x
x
x
x
x
x
x
x
@100VAC
1.25
0.664
1.50
0.853
1.60
1.060
2.00
0.530
2.50
1.029
3.00
1.650
3.15
1.920
3.50
2.469
4.00
3.152
5.00
5.566
6.30
9.170
x
x
x
7.00
10.32
8.00
20.23
35ꢀamperesꢀ@125ꢀVAC/
50ꢀamperesꢀ@125ꢀVDC
10.0
010.
125
300ꢀamperesꢀ@32ꢀVDC
0.0056
26.46
x
x
x
PSE: 100 amperes
@100VAC
12.0
15.0
012.
015.
65
65
0.0049
0.0037
47.97
97.82
x
x
x
x
50ꢀamperesꢀ@65ꢀVAC/VDC
300ꢀamperesꢀ@24ꢀVDC
Notes:
- l2t calculated at 8ms.
- Resistance is measured at 10% of rated current, 25ºC
© 2009 Littelfuse, Inc.
451/453 Series
58
Specifications are subject to change without notice.
Please refer to www.littelfuse.com/series/451.html
or /453.html for current information.
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