Littelfuse 435 Series User Manual
Surface mount fuses, 435 series fuse
© 2013 Littelfuse, Inc.
Specifications are subject to change without notice.
Revised: 12/19/13
Surface Mount Fuses
Thin Film > 0402 Size > Very Fast-Acting > 435 Series
435 Series Fuse
Description
Agency Approvals
AgeNCy
AgeNCy FIle NumbeR
AmpeRe RANge
e10480
0.250 - 5.0A
lR 29862
0.250 - 5.0A
Electrical Characteristics for Series
Features
• 35A interrupt rating at
32VDC
• Small size with current
ratings of 0.25 to 5.0
amperes
• RoHS compliant, lead-free
and halogen-free
• Maximum protection of
sensitive circuits as fuses
are designed to open
consistently in <5sec at
200% overload.
• Enhanced Breaking
Capacity, High l
2
t
% of Ampere
Rating
Ampere
Rating
Opening Time at 25
O
C
100%
0.250A - 5A
4 hours, Minimum
200%
0.375A - 5A
5 secs., Maximum
300%
0.250A
5 secs., Maximum
300%
0.375A - 5A
0.2 sec., Maximum
Ampere
Rating
(A)
Amp
Code
max Voltage
Rating
(V)
Interrupting
Rating
Nominal Cold
Resistance
(Ohms)
Nominal
melting
I
2
t (A
2
sec)
Nom
Voltage Drop
(mV)
Nom power
Dissipation
(W)
Agency Approvals
0.250
.250
32
35A @32V
DC
0.2265
0.0025
60.67
0.01517
x
x
0.375
.375
32
0.1930
0.0035
84.64
0.03174
x
x
0.500
.500
32
0.1600
0.0053
93.35
0.04668
x
x
0.750
.750
32
0.1050
0.0120
101.84
0.07638
x
x
1.00
001.
32
0.0730
0.0200
87.45
0.08745
x
x
1.25
1.25
32
0.0600
0.0350
96.37
0.12046
x
x
1.50
01.5
32
0.0470
0.0560
86.70
0.13005
x
x
1.75
1.75
32
0.0390
0.0750
81.13
0.14198
x
x
2.00
002.
32
0.0300
0.1000
70.62
0.14120
x
x
2.50
02.5
32
0.0185
0.1560
55.25
0.13813
x
x
3.00
003.
32
0.0165
0.2032
60.58
0.18740
x
x
3.50
03.5
32
0.0135
0.3017
57.84
0.20244
x
x
4.00
004.
32
0.0115
0.3084
57.00
0.22800
x
x
5.00
005.
32
0.0085
0.5310
52.44
0.26220
x
x
Electrical Specifications by Item
1. Measured at 10% of rated current, 25ºC.
2. Measured at rated voltage.
The 435 Series are fast-acting surface mount thin-film
fuses. Their ultra-small size (0402 size) makes them ideal for
secondary protection of circuits used in space constrained
applications such as hand-held portable electronic devices.
This series is 100% lead-free and meet the requirements of
the RoHS directive. New Halogen-Free 435 Series fuses are
available–to order use the “HF” suffix. See Part Numbering
section for additional information.
Applications
• Cell phones
• Battery packs
• Digital cameras
• DVD players
• Hard disk drives.
Secondary protection for space constrained applications
such as:
Additional Information