434 Datasheet, PDF (1/1 Pages) Littelfuse – Surface Mount Fuses - Thin-Film Surface Mount

Surface Mount Fuses
Thin-Film Surface Mount
SlimLine 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
Rating
Opening
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:
.25–1A
50 A @ 32 V AC/DC
1.25–5A
35 A @ 32 V AC/DC
ENVIRONMENTAL SPECIFICATIONS:
Operating Temperature: –55°C to 90°C. Consult temperature
rerating chart on page 4. For operation above 90°C contact Littelfuse.
Vibration: Per MIL-STD-202F.
Insulation Resistance (After Opening): Greater than
10,000 ohms.
Resistance To Soldering Heat: Withstands 60 seconds above
200°C up to 260°C, maximum.
Thermal Shock: Withstands 5 cycles of –55°C to 125°C.
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 — 260°C, 10 seconds maximum
Reflow Solder— 260°C, 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:
Reference Dimensions:
1.60
(.063")
.127
(.005")
Sn/Pb
MARKING CODE VARIES
WITH AMPERAGE RATING
(SEE CHART)
Cu
Sn/Pb ^Sn/Pb
.813
(.032")
1.09
(.043")
1.02
(.040")
3.20
(.126")
1.09
(.043")
WAVE SOLDER
Average Time Current Curves
100
.305
.254 (.010") (.012")
.279
(.011")
Coating
2.54
(.100")
1.02
(.040")
.762
(.030")
1.09
(.043")
REFLOW SOLDER
ORDERING INFORMATION:
Catalog Ampere Marking
Number Rating Code
0434.250 .25
D
0434.375 .375
E
0434.500
.5
F
0434.680 .68
X
0434.750 .75
G
0434 001. 1
H
0434 1.25 1.25
J
0434 01.5 1.5
K
0434 1.75 1.75
L
0434 002. 2
N
0434 02.5 2.5
O
0434 003. 3
P
0434 03.5 3.5
R
0434 004. 4
S
0434 005. 5
T
1_{Measured at 10% of rated current, 25°C.}
2_{Measured at rated voltage.}
Voltage
Rating
32
32
32
32
32
32
32
32
32
32
32
32
32
32
32
Nominal
Resistance
Cold Ohm¹
0.375
0.265
0.193
0.125
0.114
0.072
0.054
0.048
0.039
0.036
0.028
0.023
0.019
0.017
0.013
Melting I²t
(A² Sec.)²
0.0030
0.0053
0.0087
0.0109
0.0171
0.0210
0.0320
0.0526
0.0661
0.104
0.175
0.198
0.265
0.352
1.297
10
1
0.1
0.01
0.001
0.1
1
10
100
CURRENT IN AMPERES
372
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