101
Surface Mount Fuses
Revision: September 9, 2008
Specications are subject to change without notice.
Please refer to www.littelfuse.com/series/0157T.html for current information.
0157T Series
Nano2 > 157T Fuse and Holder Combination
0157T Series – Standard Nano Fuse Clip
Description
The 157T Series Fuse/Clip assembly is a small, square,
time lag, surface mount fuse that is assembled in surface
mountable fuse clips. The unique time delay feature of this
fuse design helps solve the problem of nuisance “opening”
by accommodating inrush currents that normally cause a
fast acting fuse to open.
The fuse clip and pre-installed fuse combination can
be automatically placed in PC Board in one efcient
manufacturing operation. It permits quick and easy
replacement of fuses without performing desoldering
process, even in the eld and without exposing the PC
Board to detrimental effects of rework solder heat.
Agency Approvals
AGENCY
AGENCY FILE NUMBER
AMPERE RANGE
E14721 VOLUME 9
0.375A ~ 5A
Features
Electrical Characteristics for Series
Time Lag Fuse.
RoHS/Pb-Free solder
alloys and higher
temperature proles
associated with
leadfree assembly.
on PC Board (Field
Replaceable)
0.375 ~ 5 Amperes.
% of Ampere
Rating
% of Ampere
Rating
OpeningTime at 25C
100%
0.375A ~ 5A
200%
0.375A ~ 5A
300%
0.375A ~ 5A
800%
0.375A ~ 5A
Applications
Ampere Rating
(A)
Amp
Code
Max
Voltage Rating
(V)
Interrupting
Rating
(A)
Nominal Cold
Resistance
(Ohms)
Nominal
Melting
I2t (A2sec)
Agency Approvals
0.375
.375
125
50A @ 125VAC/VDC
300A @ 32 VDC
1.2214
0.101
X
0.500
.500
125
0.7047
0.240
X
0.750
.750
125
0.3602
0.904
X
1.00
001
125
0.2245
1.98
X
1.50
01.5
125
0.0934
3.65
X
2.00
002
125
0.0629
8.20
X
2.50
02.5
125
0.0452
15.0
X
3.00
003
125
0.0342
20.16
X
3.50
03.5
125
0.0226
26.53
X
4.00
004
125
0.0188
34.40
X
5.00
005
125
0.0138
53.72
X
Electrical Specications by Item
1. Cold resistance measured at less than 10% of rated current at 23C.
2. I2t values stated for 8ms opening time.
3. Agency Approval Table Key: X=Approved or Certied, P=Pending and Blank=Not Approved
4. Have special electrical characteristic needs? Contact Littelfuse to learn more about application specic options