Axial lead & cartridge fuses, Temperature rerating curve – Littelfuse 217 Series User Manual
Page 2
© 2013 Littelfuse, Inc.
Specifications are subject to change without notice.
Revised: 12/19/13
Axial Lead & Cartridge Fuses
5×20 mm > Fast-Acting > 217 Series
Electrical Characteristic Specifications by Item
Average Time Current Curves
0.032A 0.040A 0.050A 0.063A 0.080A 0.1
00
A
0.1
25A
0.1
60A
0.20
0A
0.250A 0.31
5A
0.40
0A
0.50
0A
0.630A 0.80
0A
1A 1.25A 1.6A 2A 2.5A 3.1
5A
4A 5A 6.3A 8A 10
A
15
A
CURRENT IN AMPERES
10000
1000
100
10
1
0.1
0.01
0.01
0.1
1
10
100
1000
0.001
TIME IN SECONDS
Temperature Rerating Curve
Amp
Code
Amp
Rating
(A)
Voltage
Rating
(V)
Interrupting
Rating
Nominal
Cold
Resistance
(Ohms)
Nominal
melting
I
2
t (A
2
sec)
maximum
Voltage Drop
at Rated
Current
(mV)
maximum
power
Dissipation
At
1.5ln(W)
Agency Approvals
PS
E
.032
0.032
250
35A@250Vac
262.2000
0.00006
10000
1.6
x
x
x
x
x
x
x
.040
0.04
250
183.1500
0.00008
8000
1.6
x
x
x
x
x
x
x
.050
0.05
250
15.2000
0.00019
7000
1.6
x
x
x
x
x
x
x
.063
0.063
250
10.4500
0.00056
5000
1.6
x
x
x
x
x
x
x
.080
0.08
250
7.8900
0.00083
4000
1.6
x
x
x
x
x
x
x
.100
0.1
250
5.6965
0.00450
3500
1.6
x
x
x
x
x
x
x
.125
0.125
250
3.8200
0.00478
2000
1.6
x
x
x
x
x
x
x
.160
0.16
250
2.5250
0.01000
2000
1.6
x
x
x
x
x
x
x
.200
0.2
250
1.7000
0.02000
1700
1.6
x
x
x
x
x
x
x
.250
0.25
250
1.2325
0.04000
1400
1.6
x
x
x
x
x
x
x
.315
0.315
250
0.8800
0.11000
1300
1.6
x
x
x
x
x
x
x
.400
0.4
250
0.2770
0.12500
1200
1.6
x
x
x
x
x
x
x
x
.500
0.5
250
0.2065
0.21500
1000
1.6
x
x
x
x
x
x
x
x
.630
0.63
250
0.1900
0.41000
650
1.6
x
x
x
x
x
x
x
x
.800
0.8
250
0.1203
0.85000
240
1.6
x
x
x
x
x
x
x
x
001.
1
250
0.0964
1.04500
200
1.6
x
x
x
x
x
x
x
x
x
1.25
1.25
250
0.0701
2.23000
200
1.6
x
x
x
x
x
x
x
x
x
01.6
1.6
250
0.0528
4.61500
190
1.6
x
x
x
x
x
x
x
x
x
002.
2
250
0.0416
5.73000
170
1.6
x
x
x
x
x
x
x
x
x
02.5
2.5
250
0.0334
9.46000
170
1.6
x
x
x
x
x
x
x
x
x
3.15
3.15
250
0.0224
17.72000
150
2.5
x
x
x
x
x
x
x
x
x
004.
4
250
40A@250Vac
0.0165
29.16500
130
2.5
x
x
x
x
x
x
x
x
x
005.
5
250
50A@250Vac
0.0137
42.79500
130
2.5
x
x
x
x
x
x
x
x
x
06.3
6.3
250
63A@250Vac
0.0095
62.46500
130
2.5
x
x
x
x
x
x
x
x
x
008.
8
250
80A@250Vac
0.0068
198.16000
130
4
x
x
x
x
x*
010.
10
250
100A@250Vac
0.0063
217.63500
130
4
x
x
x
x
x*
015.
15
250
150A@250Vac
0.0040
607.13500
130
4
x
x
x*
* Approval for cartidge versions only.