437 Datasheet, PDF (3/4 Pages) Littelfuse – Surface Mount Fuses

Surface Mount Fuses
Ceramic Fuse > 437 Series
Product Characteristics
Materials
Body: Advanced Ceramic
Terminations: Ag / Ni / Sn (100% Lead-free)
Element Cover Coating: Lead-free Glass
Moisture
Sensitivity Level
*1$+&%&$
+45%$
-FWFM

Solderability
*1$&*$+&%&$
+45%#
$POEJUJPO
#
Humidity Test .*-45%
.FUIPE
#
$POEJUJPOT
%
ESD Immunity
Resistance to
Solder Heat
*&$

L7
%JSFDU
.*-45%
.FUIPE
'
$POEJUJPO
#
Moisture Resistance
Thermal Shock
Mechanical Shock
Vibration
Vibration,
High Frequency
Dissolution of
Metallization
Terminal Strength
MIL-STD-202, Method 106G
MIL-STD-202, Method 107G,
$POEJUJPO
#
.*-45%
.FUIPE
#

Condition A
MIL-STD-202, Method 201A
MIL-STD-202, Method 204D,
Condition D
*1$&*$+&%&$
+45%#

Condition D
*&$

Dimensions
1.000
[0.039]
1.63 +0.10 / -0.2
[0.064 +0.004 / -0.008]
0.520 ± 0.200
[0.020 ± 0.08]
1.000
[0.039]
3.200 ± 0.1778
[0.126 ± 0.007]
N
0.8179 +0.046 / -0.076
[0.0332 +0.0018 / -0.003]
2
1.500
[0.059]
3.500
[0.138]
1.800
[0.071]
Part Marking System
Amp Code
.250
.375
.500
.750
001.
1.25
01.5
1.75
002.
02.5
003.
03.5
004.
005.
007.
008.
Marking Code
D
E
F
G
H
J
K
L
N
O
P
R
S
T
W
X
Part Numbering System
0437 008. W R
SERIES
AMP CODE
PACKING CODE
3

3FFM
1BDL
QUANTITY CODE
W = 3000 pcs
Packaging
Packaging Option
Packaging Specification
8mm Tape and Reel
&*"
*&$

QBSU

© 2009 Littelfuse, Inc.
Specifications are subject to change without notice.
Please refer to www.littelfuse.com/series/437.html for current information.
Quantity
3000
19
Quantity &
Packaging Code
WR
437 Series