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Revision: February 13, 2008
Surface Mount Fuses
2008 Littelfuse, Inc.
Specications are subject to change without notice.
Please refer to www.littelfuse.com for the most current information
Thin Film > 0603 Size > Very Fast Acting > 434 Series
434 Series
434 Series Fuse
Description
Agency Approvals
Agency
Agency File Number
Ampere Range
E10480
250mA - 3A
LR29862
250mA - 3A
Electrical Characteristics for Series
Features
fuse is an extremely
small, low prole design
(0603 chip size) utilizing
thin-lm technology to
achieve precise control of
electrical characteristics.
produces a at surface for
improved performance in
pick-and-place operations
and an alternate solution
for height critical
applications.
Applications
% of Ampere
Rating
OpeningTime at 25OC
100%
4 hours, Minimum
200%
5 seconds, Maximum.
300%
0.2 seconds, Maximum
The 434 series fast-acting surface mount fuse series is
an ultra small (0603 size) thin-lm 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 467 series thin lm fuse.
Ampere
Rating
(A)
Amp
Code
Max
Voltage
Rating
(V)
Interrupting
Rating
Nominal Cold
Resistance
(Ohms)
Nominal
Melting
I2t (A2sec)
Agency Approvals
0.250
.250
32
50A @32 V AC/DC
0.3750
0.0030
x
0.375
.375
32
0.2650
0.0053
x
0.500
.500
32
0.1903
0.0087
x
0.680
.680
32
0.1250
0.0109
x
0.750
.750
32
0.1140
0.0171
x
1.00
001.
32
0.0720
0.0212
x
1.25
32
35A @32 V AC/DC
0.0540
0.0320
x
1.50
01.5
32
0.0480
0.0526
x
1.75
32
0.0390
0.0661
x
2.00
002.
32
0.0360
0.1040
x
2.50
02.5
32
0.0280
0.1750
x
3.00
003.
32
0.0230
0.1980
x
3.50
03.5
32
0.0190
0.2650
x
4.00
004.
32
0.0170
0.3520
x
5.00
005.
32
0.0130
1.2970
x
Electrical Specications by Item
1. Measured at 10% of rated current, 25C.
2. Measured at rated voltage.
Secondary protection for space constrained applications
such as: