433 Series Fuse
1. Measured at 10% of rated current, 25ºC.
2. Measured at rated voltage.
©2008 Littelfuse, Inc.
Specifications are subject to change without notice.
Please refer to www.littelfuse.com for the most current information
Ampere
Agency Approvals
Electrical Characteristics for Series
Electrical Specifications by Item
Rating
0.200
0.125
0.250
0.375
Agency
0.50
0.60
0.75
0.80
2.00
2.50
3.00
4.00
5.00
®
1.00
1.25
1.50
1.75
(A)
% of Ampere
Rating
®
100%
200%
300%
Code
Amp
.200
.500
.600
.800
E10480
LR29862
.125
.250
.375
.750
1.25
1.75
02.0
02.5
03.0
04.0
05.0
001.
01.5
Agency File Number
Voltage Rating
Max
125
125
125
125
(V)
63
63
63
63
63
63
63
63
63
32
32
24
24
Opening Time at 25
0.2 sec., Maximum
4 hours, Minimum
5 sec., Maximum
50A @125 V AC/DC
50A @63 V AC/DC
50A @32 V AC/DC
50A @24 V AC/DC
125mA - 5A
125mA - 5A
Interrupting
Rating
Ampere Range
Surface Mount Fuses
Thin Film > 1206 Size > Very Fast Acting > 433 Series
O
C
Revision: February 13, 2008
Nominal Cold
Resistance
(Ohms)
3.45000
0.93800
0.62500
0.37500
0.24050
0.21000
0.13700
0.12250
0.09950
0.06250
0.05000
0.03975
0.03065
0.02625
0.01400
0.07475
0.01100
7
Description
The 433 series fast-acting surface mount fuse series
is a small (1206 size) thin-film device designed for
secondary protection of circuits used in space constrained
applications such as hand-held portable electronic devices.
For RoHS compliant and lead-free design, please refer to
the Littelfuse 466 series thin film fuse. For new designs of
7 amp please refer to Littelfuse 429 series thin film fuse.
Features
Applications
Secondary protection for space constrained applications
such as:
fuse is an extremely
small, low profile design
(1206 chip size) utilizing
thin-film technology to
achieve precise control of
electrical characteristics.
produces a flat surface for
I
Nominal
2
Melting
0.00040
0.00055
0.00280
0.00600
0.03050
0.03500
0.06500
0.12500
0.15000
0.23000
0.50000
0.70000
0.00100
0.01310
0.01700
t (A
1.0240
1.6000
2
sec)
Agency Approvals
®
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
®
improved performance in
pick-and-place operations
and an alternate solution
for height critical
application.
electrical specification are
identical to the popular
429 Series specifications.
®
433 Series
®