Axial Lead & Cartridge Fuses
PICO® ll > Very Fast-Acting > 491 Series
PS
E
491 Series, PICO® II, Very Fast-Acting Fuse
Description
The PICO® II Very Fast-Acting Fuse is designed to meet an
extensive array of performance characteristics in a
space-saving subminiature package.
Features
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temperature range
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range (125mA - 10A)
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rating
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Applications
Agency Approvals
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Agency
Agency File Number
Ampere Range
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E10480
LR 29862
125mA - 10A
125mA - 10A
1A - 5A
Electrical Characteristics
PS
E
JET 1896-31007-1001
% of Ampere
Rating
Ampere Rating
1/8-10
OpeningTime
100%
300%
ꢂꢀ)PVSTꢃꢀMin.
1/8-10
ꢄꢅꢆꢀ4FDPOETꢃ Max.
Electrical Characteristics
Agency Approvals
Max
Voltage
Rating
(V)
Ampere
Rating
(A)
Ordering
Number
(Std.)
Nominal Cold
Resistance
(Ohms)
Interrupting
Rating
Amp Code
PS
E
.125
.200
.250
.315
.400
.500
.630
.750
.800
1.00
1.25
1.50
1.60
2.00
2.50
3.00
3.15
3.50
4.00
5.00
7.00
0.125
0.200
0.250
0.315
0.400
0.500
0.630
0.750
0.800
001.
0491.125
0491.200
0491.250
0491.315
0491.400
0491.500
0491.630
0491.750
0491.800
0491 001.
0491 1.25
0491 01.5
0491 01.6
0491 002.
0491 02.5
0491 003.
0491 3.15
0491 03.5
0491 004.
0491 005.
0491 007.
0491 010.
125
125
125
125
125
125
125
125
125
125
125
125
125
125
125
125
125
125
125
125
86
1.7000
0.8950
0.6650
0.5000
0.3230
0.3020
0.2050
0.1750
0.1480
0.1280
0.1000
0.0823
0.0700
0.0473
0.0360
0.0295
0.0275
0.0240
0.0204
0.0158
0.0107
0.0072
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
x
x
x
x
x
x
x
x
x
x
x
x
x
x
x
x
50A at
125Vac and
Vdc
1.25
01.5
01.6
002.
02.5
003.
3.15
03.5
004.
005.
007.
10.00
010.
86
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© 2009 Littelfuse, Inc.
491 Series
EC3051v1E-0902-CUST
Specifications are subject to change without notice.
Revised: March 11, 2009
Please refer to www.littelfuse.com for current information.