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SM10T-18 Datasheet(PDF) 4 Page - Pletronics, Inc.

Part No. SM10T-18
Description  SM10T Series Miniature SMD Crystal
Download  6 Pages
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Maker  PLETRONICS [Pletronics, Inc.]
Homepage  http://www.pletronics.com
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SM10T-18 Datasheet(HTML) 4 Page - Pletronics, Inc.

   
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SM10T Series
Miniature SMD Crystal
February 2009
www.pletronics.com
425-776-1880
4
3
2
3
4
1
4
2
1
4
3
Mechanical:
Inches
mm
A
0.098 +
_ 0.004
2.5 +
_ 0.15
B
0.126 +
_ 0.004
3.2 +
_ 0.15
C
0.028 max
0.7 max
D
1
0.028 to 0.031
0.7 to 0.8
E
1
0.004
0.1
F
1
A - (2 * (D + E))
G
1
0.035
0.9
The chamfered pad may or
may not be present and may be on any pad
Contacts :
Gold 11.8 µinches
0.3 µm minimum over
Nickel 50 to 350 µinches
1.27 to 8.89 µm
H
1
0.047
1.2
Not to Scale
1 Typical dimensions
J
1
0.004
0.1
Connection (top view):
Pad 2 and Pad 4 are common and connected
to the metal cover. They are not connected to
the crystal.
The crystal is symmetrical, there is no Pad 1
preference. The part can be rotated 180
o when
being assembled on the PCB and will still
perform correctly.
Layout and application information
• Trace lengths to the crystal should be kept as short as possible.
• The crystal connections are sensitive to noise.
• The package should be grounded for optimum performance, pad 2 and/or pad 4 connected to ground.
Marking
• Marking consists of the frequency (may be truncated due to package size) and date code
• Date code consists of Month Year (see codes below)
• Orientation of marking may be mixed on the tape
• Traceability of part is lost once removed from reel
Codes for Date Code (Month Year)
Code
6
7
8
9
0
1
2
Year
2006
2007
2008
2009
2010
2011
2012
Code
A
B
C
D
E
F
G
H
J
K
L
M
Month
JAN
FEB
MAR
APR
MAY
JUN
JUL
AUG
SEP
OCT
NOV
DEC


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