0253.125V Datasheet, PDF (2/4 Pages) Littelfuse – Axial Lead & Cartridge Fuses PICO ll > Very Fast-Acting > 251/253 Series

Axial Lead & Cartridge Fuses
PICO^® ll > Very Fast-Acting > 251/253 Series
Electrical Specifications by Item
Ampere
Rating
(A)
Amp
Code
Ordering
Number
(Std.)
Ordering
Number
(Mil.)
Max
Voltage
Rating
(V)
Interrupting
Rating
Nominal
Cold
Resistance
(Ohms)
Nominal
Melting
I²t (A² sec)
Nom
Voltage
Drop
(V)
.062 .062 251.062 253.062 125
.125 .125 251.125 253.125 125
7.000 0.000113 1.4
x
1.700
0.00174 0.285 x
.250 .250 251.250 253.250 125
0.665
0.0116 0.24
x
.375 .375 251.375 253.375 125
0.395
0.0296 0.215 x
.500
.630
.750
1.00
1.25
.500
.630
.750
001.
1.25
251.500
251.630
251.750
251001.
2511.25
253.500
253.750
253001.
125
125 ^{300 A @ rated}
125 ^WPMUBHF
%$
125 _{50 A @ rated}
125 WPMUBHF
"$
0.280
0.205
0.175
0.128
0.100
0.0598 0.2165 x
0.094 0.188 x
0.153 0.176 x
0.256 0.194 x
0.390
0.2
x
1.50
2.00
2.50
3.00
3.50
4.00
5.00
01.5
002.
02.5
003.
03.5
004.
005.
25101.5
251002.
25102.5
251003.
25103.5
251004.
251005.
25301.5
253002.
253003.
253004.
253005.
125
0.0823
For CCC 7A:
125 _{70 A @ rated} 0.0473
125 WPMUBHF
"$ 0.0360
125
0.0290
125
For CCC 10A:
100 A @ rated
0.0240
125 _WPMUBHF
"$ 0.0204
125
0.0155
0.587
0.21
x
0.405 0.141 x
0.721 0.132 x
1.19 0.131 x
1.58 0.1205 x
2.45 0.114 x
4.14
0.11
x
7.00 007. 251007. 253007. 125
0.0105
10.4
0.102 x
10.0 010. 251010. 253010. 125
12.0 012. 251012.
32
15.0 015. 251015. 253015. 32
0.00705
0.0055
0.00446
25.5
0.1
x
45.2 0.0878 x
68.8
0.071 x
Agency Approvals
PS
E
TUV QPL
x
x
x
x
x
x
x
x
x
x
x
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x
x
x
x
x
x
x
x
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x
x
x
x
x
x
x
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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
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GPS
BTTJTUBODF
251/253 Series
© 2012 Littelfuse, Inc.
Specifications are subject to change without notice.
Please refer to www.littelfuse.com/series/251.html
or /253.html for current information.