Littelfuse 263 Series User Manual
Axial lead & cartridge fuses, 263 series, pico, Ii 250 volt, very fast-acting fuse
© 2013 Littelfuse, Inc.
Specifications are subject to change without notice.
Revised: 12/19/13
Axial Lead & Cartridge Fuses
PICO
®
ll > Very Fast-Acting > 263 Series
263 Series, PICO
®
II 250 Volt, Very Fast-Acting Fuse
Description
The PICO
®
II 263 Series Fuse is a specially designed
axial leaded fuse that achieves a 250V rating in a small
package.
Agency Approvals
Agency
Agency File Number
Ampere Range
E10480
62mA - 5A
PS
E
JET 1896-31007-1001
1A - 5A
LR 29862
125mA - 5A
Features
Electrical Characteristics
• 250V rating
• Very fast–acting
• Small size
• Wide range of current
rating available (62mA to
5A)
• RoHS compliant &
Halogen-free
• Wide operating
temperature range
• Low temperature
de-rating
% of Ampere
Rating
Opening Time
100%
4 Hours, Min.
200%
1 Second, Max.
300%
0.1 Second, Max.
Applications
Ampere
Rating
(A)
Amp Code
max
Voltage
Rating
(V)
Interrupting
Rating
Nominal Cold
Resistance
(Ohms)
Nominal
melting
I
2
t (A
2
sec)
Nom
Voltage Drop
(mV)
Agency Approvals
PS
E
0.062
.062
250
50 amperes
at 250 VAC
PSE: 100
amperes
at 125 VAC.
5.50
0.000192
0.74
x
0.125
.125
250
1.75
0.00251
0.3
x
x
0.250
.250
250
0.715
0.0165
0.235
x
x
0.375
.375
250
0.391
0.0444
0.195
x
x
0.500
.500
250
0.332
0.084
0.302
x
x
0.750
.750
250
0.150
0.0411
0.176
x
x
1.00
001.
250
0.105
0.087
0.165
x
x
x
1.50
01.5
250
0.0635
0.398
0.148
x
x
x
2.00
002.
250
0.0444
0.74
0.137
x
x
x
2.50
02.5
250
0.0340
1.197
0.128
x
x
x
3.00
003.
250
0.0274
1.77
0.1225
x
x
x
3.50
03.5
250
0.0224
2.33
0.1175
x
x
x
4.00
004.
250
0.0193
3.08
0.1125
x
x
x
5.00
005.
250
0.0145
5.55
0.1065
x
x
x
Electrical Characteristics
• Lighting system
• Power supply
• LCD/PDP TV
• LCD monitor
• Office automation
machines
• Audio/Video system
• Medical equipment
PS
E
Additional Information