372
Surface Mount Fuses
w w w . l i t t e l f u s e . c o m
SlimLine
TM
0603
Very Fast-Acting Fuse 434 Series
For RoHS compliant and Lead-Free designs use 467 series.
The SlimLine 0603 fuse is an extremely small, low profile design
(0603 chip size) utilizing thin-film technology to achieve precise control
of electrical characteristics.
The lower height profile produces a flat surface for improved
performance in pick-and-place operations and an alternate solution for
height critical applications.
ELECTRICAL CHARACTERISTICS:
% of Ampere
Opening
Rating
Time at 25
C
100%
4 hours, Minimum
200%
5 seconds, Maximum
300%
0.2 seconds, Maximum
AGENCY APPROVALS:
Recognized under the Components
Program of Underwriters Laboratories and Certified by CSA.
AGENCY FILE NUMBERS:
UL E10480, CSA LR 29862.
INTERRUPTING RATINGS:
.251A
50 A @ 32 V AC/DC
1.255A
35 A @ 32 V AC/DC
ENVIRONMENTAL SPECIFICATIONS:
Operating Temperature:
55C to 90C. Consult temperature
rerating chart on page 4. For operation above 90C contact Littelfuse.
Vibration:
Per MIL-STD-202F.
Insulation Resistance (After Opening):
Greater than
10,000 ohms.
Resistance To Soldering Heat:
Withstands 60 seconds above
200C up to 260C, maximum.
Thermal Shock:
Withstands 5 cycles of 55C to 125C.
PHYSICAL SPECIFICATIONS:
Materials:
Body: Epoxy Substrate
Terminations: Copper/Nickel/Tin-Lead (95/5)
Cover Coat: Conformal Coating
Soldering Parameters(see page 3 for typical soldering profile):
Wave Solder -- 260C, 10 seconds maximum
Reflow Solder-- 260C, 30 seconds maximum
PACKAGING SPECIFICATIONS:
8mm Tape and Reel per EIA-
RS481-1 (IEC 286, part 3); 5,000 per reel, add packaging suffix, NR.
PATENTED:
ORDERING INFORMATION:
TIME IN SECONDS
CURRENT IN AMPERES
0.01
0.1
0.1
1
1
10
100
10
100
0.001
3A
2.5A
2A
1.5A
1A
.75A
.5A
.375A
.25A
3.5A 4A
5A
.68A
Average Time Current Curves
Nominal
Catalog
Ampere
Marking
Voltage
Resistance
Melting I
2
t
Number
Rating
Code
Rating
Cold Ohm
1
(A
2
Sec.)
2
0434.250
.25
D
32
0.375
0.0030
0434.375
.375
E
32
0.265
0.0053
0434.500
.5
F
32
0.193
0.0087
0434.680
.68
X
32
0.125
0.0109
0434.750
.75
G
32
0.114
0.0171
0434 001.
1
H
32
0.072
0.0210
0434 1.25
1.25
J
32
0.054
0.0320
0434 01.5
1.5
K
32
0.048
0.0526
0434 1.75
1.75
L
32
0.039
0.0661
0434 002.
2
N
32
0.036
0.104
0434 02.5
2.5
O
32
0.028
0.175
0434 003.
3
P
32
0.023
0.198
0434 03.5
3.5
R
32
0.019
0.265
0434 004.
4
S
32
0.017
0.352
0434 005.
5
T
32
0.013
1.297
1
Measured at 10% of rated current, 25C.
2
Measured at rated voltage.
1.09
(.043")
REFLOW SOLDER
1.60
(.063")
.127
(.005")
MARKING CODE VARIES
WITH AMPERAGE RATING
(SEE CHART)
1.02
(.040")
.762
(.030")
2.54
(.100")
1.09
(.043")
WAVE SOLDER
3.20
(.126")
1.09
(.043")
1.02
(.040")
.813
(.032")
.305
(.012")
.279
(.011")
.254 (.010")
Sn/Pb
Sn/Pb
Cu
Sn/Pb
Coating
Reference Dimensions:
Thin-Film Surface Mount
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