SM55-18 Datasheet, PDF (2/7 Pages) Pletronics, Inc. – Miniature SMD Crystal

SM55 Series
Miniature SMD Crystal
January 2009
AT Cut Crystal Frequency
versus Temperature
Typical Performance:
Part Marking:
160
140
120
100
80
60
40
20
0
-20
-40
-60
-80
-100
-120
-140
-160
-60
-40
-20
0
20
40
60
Temperature (^oC)
80
100
120
1xFFFFFPymdz or L1xFFFFzywwz
Legend:
1
= Model code for SM55
x
= Capacitance load code from below
FFFFF
= Frequency coded
P or L
= Pletronics
ymd or yww = Date of Manufacture (year, month and day) or year, week week
All other marking is internal factory codes
Some frequency marking examples: 3.579545M = 03579, 14.31818M = 14181, 24.0M = 24000
Specifications such as frequency tolerance and operating temperature range, etc. are not identified
from the marking. External packaging labels and packing list will correctly identify the ordered
Pletronics part number.
Code A B C D E F G H J K L M N P Q R S T U V W X Y
pF 10 12 13 8 15 18 20 22 24 26 28 30 32 34 36 27 series 33 50 19 16 17 14
Codes for Date Code YMD
Code
6
7
8
Year 2006 2007
2008
9
2009
0
2010
1
2011
2
2012
Code
Month
A
B
C
D
E
F
G
H
J
K
L
M
JAN FEB MAR APR MAY JUN JUL AUG SEP OCT NOV DEC
Code 1
2
3
4
5
6
7
8
9
A
B
C
Day
1
2
3
4
5
6
7
8
9
10
11
12
Code D
E
F
G
H
J
K
L
M
N
P
R
Day 13
14
15
16
17
18
19
20
21
22
23
24
Code T
U
V
W
X
Y
Z
Day 25
26
27
28
29
30
31
www.pletronics.com
425-776-1880
2