SM55TZ Series 0.8-2.0 V
CMOS Clock Oscillators
March 2013
Part Number:
SM55
45
T
E
Z
-50.0M
-XX
Packaging code or blank
T250
= 250 per Tape and Reel
T500
= 500 per Tape and Reel
T1K
= 1000 per Tape and Reel
Frequency in MHz
Supply Voltage V
CC
Z
= 0.8 to 2.0 10%
Optional Enhanced OTR
Blank
= Temp. range -10 to +70
o
C
C
= Temp. range -20 to +70
o
C
E
= Temp. range -40 to +85
o
C
Series Model
Frequency Stability
45
= 50 ppm
44
= 25 ppm
20
= 20 ppm
Series Model
Part Marking:
PFF.FFF M
C
YMDxx
-or-
PFF.FFF
C
YYWWxx
-or-
PLE SM55
FF.FFF
M
CYMDxx
-or-
P5xYWWx
C
FF.FF Mxxx
-or-
5xYWWxx
FF.FFF
M
CPLE
xxx
Marking Legend:
PLE
= Pletronics
FF.FFF
M = Frequency in MHz
YYWW or YWW or
YMD
= Date of Manufacture (year and week, or year-month-day)
All other marking is internal factory codes
Specifications such as frequency stability, supply voltage 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.
Codes for Date Code YMD
Code
10
Code
A
1
2
3
4
B
C
D
E
F
G
H
J
K
L
M
Year
2010 2011 2012 2013 2014
Month
JAN FEB MAR APR MAY JUN JUL AUG SEP OCT NOV DEC
Code
Day
Code
Day
1
1
H
17
2
2
J
18
3
3
K
19
4
4
L
20
5
5
M
21
6
6
N
22
7
7
P
23
8
8
R
24
9
9
T
25
A
10
U
26
B
11
V
27
C
12
W
28
D
13
X
29
E
14
Y
30
F
15
Z
31
G
16
www.pletronics.com
425-776-1880
2
PLETRONICS [ PLETRONICS, INC. ]
