Datasheet

© 2012 Littelfuse, Inc.
Specifications are subject to change without notice.
Axial Lead & Cartridge Fuses
251/253 Series
Please refer to www.littelfuse.com/series/251.html
or /253.html for current information.
PICO
®
ll > Very Fast-Acting > 251/253 Series
251/253 Series
Revised: September 6, 2012
251/253 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.
Agency Approvals
Agency Agency File Number Ampere Range
E10480 62mA - 15A
LR 29862 62mA - 15A
PS
E
JET 1896-31007-1001 1A - 5A
TUV
J50158379 500mA - 10A
QP
L
FM10 62mA - 15A
2009010207366577 –
500mA to 5A
500mA, 1A, 2A, 2.5A,
3A, 4A, 5A
Features
Electrical Characteristics for Series
% of Ampere
Rating
Ampere Rating Opening Time
100% 62mA - 15A 4 Hours, Min.
20
0%
62mA - 7A 1 Second, Max.
10A 3 Seconds, Max.
12 - 15A 10 Seconds, Max.
275%
500mA, 1A, 2A,
2.5A, 3A, 4A, 5A,
7A, 10A
300 msecs., Max.
400%
500mA, 1A, 2A,
2.5A, 3A, 4A, 5A,
7A, 10A
30 msecs., Max.
1000%
500mA, 1A, 2A,
2.5A, 3A, 4A, 5A,
7A, 10A
4 msecs., Max.
Applications
PS
E
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t -$%NPOJUPS
t -$%CBDLMJHIUJOWFSUFS
t 0GmDFNBDIJOFT
t 1PXFSTVQQMZ
t "VEJP7JEFPTZTUFN
t -JHIUJOHTZTUFN
t .FEJDBMFRVJQNFOU
4FDPOEBSZQSPUFDUJPOGPSTQBDFDPOTUSBJOFEBQQMJDBUJPOT
TUV
QP
L
t 7FSZGBTUBDUJOH
t 4NBMMTJ[F
t 8JEFDVSSFOUSBUJOH
range (62mA- 15A)
t 3P)4DPNQMJBOU
t )BMPHFOGSFFBWBJMBCMF
t 8JEFPQFSBUJOH
temperature range
t -PXUFNQFSBUVSF
rerating