Surface mount fuses – Littelfuse 434 Series User Manual
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Revision: February 13, 2008
Surface Mount Fuses
©2008 Littelfuse, Inc.
Specifications 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
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
0434 1.75 NR
AMP CODE
SERIES
QUANTITY CODE
Materials
Body: Epoxy Substrate
Terminations: 100% Tin over Nickel over Copper
Element Cover Coat: Conformal Coating
Operating
Temperature
– 55
O
C to 90
O
C. Consult temperature rerating
curve chart. For operation above 90°C contact
Littelfuse.
Humidity
MIL-STD-202F Method 103B Condition D
Thermal Shock
Withstands 5 cycles of – 55
O
C to
125
O
C
Vibration
Per MIL-STD-202F
Insulation Resistance
(After Opening)
Greater than 10,000 ohms
Resistance to Soldering
Heat
Withstands 60 seconds above
200
O
C and up to 260
O
C, maximum
Product Characteristics
Dimensions
Packaging
Part Numbering System
Part Marking
Packaging Option
Packaging Specification
Quantity
Quantity &
Packaging Code
8mm Tape and Reel
EIA RS-481-2 (IEC 286, part 3)
5000
NR
Amp
Code
Marking
Code
.250
D
.375
E
.500
F
.680
X
.750
G
001.
H
1.25
J
01.5
K
1.75
L
002.
N
02.5
O
003.
P
03.5
R
004.
S
005.
T