SM45 Series
Miniature SMD Crystal
November 2018
• The Pletronics’ SM45 Series is a m iniature
surface m ount crystal
• The package is ideal for autom ated surface
m ount assem bly and reflow practices.
• Tape and Reel packaging
• 3 MHz to 70 MHz
• 5 x 13 x 5 m m 4 pad
• AT Cut Crystal
Pletronics Inc. certifies this device is in accordance with the
RoHS 5/6 (2002/95/EC) and W EEE (2002/96/EC) directives.
Pletronics Inc. guarantees the device does not contain the following:
Cadm ium , Hexavalent Chrom ium , Lead (<1000 ppm ), Mercury, PBB’s, PBDE’s
W eight of the Device: 0.65 gram s
Moisture Sensitivity Level: 1 As defined in J-STD-020C
Second Level Interconnect code: e1, e2, e3 or e4
Electrical Specification:
Item
Frequency Range
Calibration Frequency Tolerance
Frequency Stability over OTR
Equivalent Series Resistance
(ESR)
Min
3
-
-
-
-
-
-
-
-
-
-
Drive Level
Shunt Capacitance
Aging
Specified Temperature Range
Storage Temperature Range
(C0)
-
-
-5
-40
-55
Max
70
-
-
200
150
120
100
80
50
40
100
1
7
+5
+85
+125
Unit
MHz
ppm
ppm
Ohms
Ohms
Ohms
Ohms
Ohms
Ohms
Ohms
Ohms
mW
pF
ppm /Yr
o
o
Condition
AT cut
at +25
o
C + 3
o
C
_
see table on page 3
for available options
3 MHz to 4 MHz
4 MHz to 5 MHz
5 MHz to 6 MHz
6 MHz to 7 MHz
7 MHz to 8 MHz
8 MHz to13 MHz
13 MHz to 30 MHz
25 MHz to 70 MHz
use 10 µW for testing
Pad to Pad capacitance
at +25
o
C _ 3
o
C
+
see table on page 3 for available options
3
rd
Overtone
Fundamental
C
C
P roduct inform ation is current as of publication date. T he product conform s
to specifications per the term s of the P letronics lim ited warranty. Production
processsing does not necessarily include testing of all param eters.
Copyright © 2018 Pletronics Inc.
SM45 Series
Miniature SMD Crystal
November 2018
AT Cut Crystal Frequency
versus Temperature
Typical Performance:
Part Marking:
8xFFFFFPymdz
or
L8xFFFFzywwz
Legend:
8
= Model code for SM45
x
= Capacitance load code from below
FFFFF
= Frequency coded
P or L
= Pletronics
ymd or yww
= Date of Manufacture (year, m onth and day) or year, week week
All other m arking is internal factory codes
Som e frequency m arking exam ples: 3.579545M = 03579, 14.31818M = 14181, 24.0M = 24000
Specifications such as frequency tolerance and operating tem perature range, etc. are not identified
from the m arking. External packaging labels and packing list will correctly identify the ordered
Pletronics part num ber.
Code
pF
A
B
C
D
8
E
F
G
H
J
K
L
M
N
P
Q
R
S
T
U
V
W
X
Y
10 12 13
15 18 20 22 24 26 28 30 32 34 36 27 series 33 50 19 16 17 14
Codes for Date Code YM D
Code
4
5
6
2014
2016
Year
2015
Code
Month
Code
Day
Code
Day
Code
Day
1
1
D
13
T
25
A
JAN
2
2
E
14
U
26
B
FEB
3
3
F
15
V
27
C
MAR
4
4
G
16
W
28
7
2017
D
APR
E
MAY
5
5
H
17
X
29
8
2018
F
JUN
6
6
J
18
Y
30
9
2019
G
JUL
7
7
K
19
Z
31
H
AUG
8
8
L
20
0
2020
J
SEP
9
9
M
21
K
OCT
A
10
N
22
L
NOV
B
11
P
23
M
DEC
C
12
R
24
www.pletronics.com
425-776-1880
2
SM45 Series
Miniature SMD Crystal
November 2018
Part Number:
SM45
-18
-14.31818M
-50
H
1
G
G
-XX
See chart below for available options
Internal code or blank
Highest Specified Operating Temperature
A
= 40
o
C
G
= 70
o
C
B
= 45
o
C
H
= 75
o
C
C
= 50
o
C
J
= 80
o
C
o
D
= 55 C
K
= 85
o
C
E
= 60
o
C
F
= 65
o
C
Lowest Specified Operating Temperature
A
= +10
o
C
F
= -15
o
C
L
= -40
o
C
o
o
B
= +5 C
G
= -20 C
C
= 0
o
C
H
= -25
o
C
D
= -5
o
C
J
= -30
o
C
E
= -10
o
C
K
= -35
o
C
Mode:
1
= Fundamental
Frequency Stability
3
=3rd Overtone
See chart below
Calibration Frequency Tolerance
15
= _ 15 ppm at 25
o
C _ 3
o
C
+
+
o
20
= _ 20 ppm at 25 C _ 3
o
C
+
+
o
30
= _ 30 ppm at 25 C _ 3
o
C (Standard)
+
+
Frequency in MHz
Cload in pF
Parallel Resonance from
09
to
44
pF or
SR
= Series Resonance
Series Model
A vailable Frequency Stability versus Tem perature in ppm
O perating
T em perature Range
0 to +45 C
0 to +50
o
C
0 to +60 C
0 to +70 C
-10 to +50 C
-10 to +60 C
-10 to +75 C
-20 to +70 C
-20 to +75 C
-30 to +75
o
C
-30 to +80 C
-30 to +85 C
-35 to +80 C
-40 to +85 C
o
o
o
o
o
o
o
o
o
o
o
o
D
CODE
CB
CC
CE
CG
EC
EE
EH
GG
GH
JH
JJ
JK
KJ
LK
_
+ 10
E
_
+ 15
F
_
+ 20
G
_
+ 30
H
_
+ 50
J
_
+ 100
!
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S TD
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www.pletronics.com
425-776-1880
3
SM45 Series
Miniature SMD Crystal
November 2018
Legacy Part Number (not for new designs):
SM45
B
E
-18
-11.0592M
-XX
Internal code or blank
Frequency in MHz
Cload in pF
Parallel Resonance in pF or
SR
= Series Resonance
Operating Temperature Range
Blank = 0 to + 70
o
C (STD)
H
= -20 to +70
o
C
E
= -40 to +85
o
C
Calibration Tolerance / Frequency Stability
Blank = 30/50 (STD)
B
= 30/30
C
= 15/30
D
= 10/20 (not all frequencies)
Series Model
Reliability: Environmental Com pliance
Parameter
Mechanical Shock
Vibration
Solderability
Thermal Shock
Condition
MIL-STD-883 Method 2002, Condition B
MIL-STD-883 Method 2007, Condition A
MIL-STD-883 Method 2003
MIL-STD-883 Method 1011, Condition A
Package Labeling
Label is 1" x 2.6" (25.4m m x 66.7m m )
Font is Courier New
Bar code is 39-Full ASCII
Label is 1" x 2.6" (25.4m m x 66.7m m )
Font is Arial
www.pletronics.com
425-776-1880
4
SM45 Series
Miniature SMD Crystal
November 2018
Mechanical:
Inches
A
B
C
D
1
E
1
Not to Scale
Contacts : Matte Tin (Sn)
-or-
1
mm
4.8 max
13.0 max
5.0 max
1.3
7.7
1.2
0.189 max
0.512 max
0.196 max
0.051
0.303
0.047
Typical dimensions
F
1
Tin over Copper (SnCu) or SAC (SnAgCu)
Inches
A
1
A
2
B
C
D
1 1
D
2 1
E
1
Not to Scale
1
mm
5.0 max
4.6
13.1 max
5.0 max
1.6
3.0
7.1
1.0
0.197 max
0.181
0.516 max
0.196 max
0.063
0.118
0.280
0.039
Typical dimensions
F
1
Contacts : Matte Tin (Sn) -or- Tin over Copper (SnCu) or SAC (SnAgCu)
For product with e4, the contact is >2um of nickel with a >0.025um of gold
Connection (bottom view)
Pin 2 & 3 connected to m etal case
:
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 optim um perform ance.
www.pletronics.com
425-776-1880
5
51单片机
