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0491002.NAT1 Datasheet, PDF (1/4 Pages) Littelfuse – Axial Lead & Cartridge Fuses PICO® ll > Very Fast-Acting > 491 Series
Axial Lead & Cartridge Fuses
PICO® ll > Very Fast-Acting > 491 Series
491 Series, PICO® II, Very Fast-Acting Fuse
PS
E
Agency Approvals
Agency
PS
E
Agency File Number
E10480
LR 29862
JET 1896-31007-1001
Ampere Range
125mA - 10A
125mA - 10A
1A - 5A
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
t 7FSZGBTUBDUJOH
t 4NBMMTJ[F
t 8JEFDVSSFOUSBUJOH
range (125mA - 10A)
t 3P)4DPNQMJBOU
t )BMPHFOGSFFBWBJMBCMF
t 8JEFPQFSBUJOH
temperature range
t -PXUFNQFSBUVSFEF
rating
Applications
4FDPOEBSZQSPUFDUJPOGPSTQBDFDPOTUSBJOFEBQQMJDBUJPOT
t 'MBUoQBOFMEJTQMBZ57
t -$%NPOJUPS
t 1PXFSTVQQMZ
t "VEJP7JEFPTZTUFN
t -$%CBDLMJHIUJOWFSUFS t -JHIUJOHTZTUFN
t 0GÃ¥DFNBDIJOFT
t .FEJDBMFRVJQNFOU
Electrical Characteristics
% of Ampere
Rating
100%
300%
Ampere Rating
1/8-10
1/8-10
Opening Time
)PVST Min.
4FDPOET Max.
Electrical Characteristics
Ampere
Rating
(A)
.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
10.00
Amp Code
0.125
0.200
0.250
0.315
0.400
0.500
0.630
0.750
0.800
001.
1.25
01.5
01.6
002.
02.5
003.
3.15
03.5
004.
005.
007.
010.
Ordering
Number
(Std.)
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.
Max
Voltage
Rating
(V)
125
125
125
125
125
125
125
125
125
125
125
125
125
125
125
125
125
125
125
125
86
86
Interrupting
Rating
Nominal Cold
Resistance
(Ohms)
50A at
125Vac and
Vdc
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
Agency Approvals
PS
E
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
Note: )JHIFSBNQFSFSBUJOHTBSFBWBJMBCMF1MFBTFDPOUBDU-JUUFMGVTF5FDIOJDBM4VQQPSUPSZPVS-JUUFMGVTFQSPEVDUTSFQSFTFOUBUJWFGPSBTTJTUBODF
© 2009 Littelfuse, Inc.
Specifications are subject to change without notice.
Please refer to www.littelfuse.com for current information.
Revised: March 11, 2009
491 Series
EC3051v1E-0902-CUST
 ▷