SM11T Series
Miniature SMD Crystal
August 2007
• The Pletronics’ SM11T Series is a miniature
surface mount crystal.
• Package is ideal for automated surface mount
assembly and reflow practices.
• Tape and Reel packaging
•
•
•
•
•
•
12 MHz to 150 MHz Fundamental
70 MHz to 300 MHz 3
rd
Overtone
120 MHz to 250 MHz 5
th
Overtone
3.2 x 5 mm 4 pad
AT Cut Crystal
Ideal for use in hand held consumer products.
Pletronics Inc. certifies this device is in accordance with the
RoHS 6/6 (2002/95/EC) and WEEE (2002/96/EC) directives.
Pletronics Inc. guarantees the device does not contain the following:
Cadmium, Hexavalent Chromium, Lead, Mercury, PBB’s, PBDE’s
Weight of the Device: 0.06 grams
Moisture Sensitivity Level: 1 As defined in J-STD-020C
Second Level Interconnect code: e4
Electrical Specification
:
Item
Frequency Range
Calibration Frequency Tolerance
Frequency Stability over OTR
Equivalent Series Resistance
(ESR)
Min
12
10
3
-
-
-
-
-
Drive Level
Shunt Capacitance
_
Aging at 25
o
C + 3
o
C
(C0)
-
-
-3
-2
Operating Temperature Range
Storage Temperature Range
-40
-55
Max
300
50
150
80
60
50
100
160
100
5
+3
+2
+125
+125
Unit
MHz
ppm
ppm
Ohms
Ohms
Ohms
Ohms
Ohms
μW
pF
ppm /Yr
ppm /Yr
o
o
Condition
Fundamental, 3
rd
and 5
th
Overtone Modes
at +25
o
C + 3
o
C, see part number for options
_
see part number for available options
12 MHz to 16 MHz
16 MHz to 20 MHz
above 20 MHz
70 MHz to 300 MHz
120 MHz to 250 MHz
use 10
μW
for testing
Pad to Pad capacitance
for the first year
after the first year
see part number for available options
3
rd
Overtone Mode
5
th
overtone Mode
Fundamental Mode
C
C
AT Cut Crystal Frequency
versus Temperature
Typical Performance:
Deviation (ppm)
160
140
120
100
80
60
40
20
0
-20
-40
-60
-80
-100
-120
-140
-160
-60
-40
-20
0
20
40
60
80
100
120
Temperature (
o
C)
Product information is current as of publication date. The product conforms
to specifications per the terms of the Pletronics standard warranty. Production
processsing does not necessarily include testing of all parameters.
Copyright © 2006, 2007, Pletronics Inc.
SM11T Series
Miniature SMD Crystal
August 2007
Part Number:
SM11T -18 -14.31818M-
20 E
1 L K -XX
See chart below for available options
Internal code or blank
Highest Specified Operating Temperature
G
= 70
o
C
N
= 100
o
C
A
= 40
o
C
B
= 45
o
C
H
= 75
o
C
P
= 105
o
C
C
= 50
o
C
J
= 80
o
C
R
= 110
o
C
D
= 55
o
C
K
= 85
o
C
S
= 115
o
C
o
o
E
= 60 C
L
= 90 C
T
= 120
o
C
F
= 65
o
C
M
= 95
o
C
U
= 125
o
C
Lowest Specified Operating Temperature
F
= -15
o
C
L
= -40
o
C
A
= +10
o
C
B
= +5
o
C
G
= -20
o
C
M
= -45
o
C
C
= 0
o
C
H
= -25
o
C
N
= -50
o
C
o
o
D
= -5 C
J
= -30 C
P
= -55
o
C
E
= -10
o
C
K
= -35
o
C
Mode:
1=Fundamental
Frequency Stability
3=
3
rd
OT
5
= 5
th
OT
See chart below
Calibration Frequency Tolerance
(Typ. Values shown)
10
= + 10 ppm at 25
o
C + 3
o
C
_
_
15
= + 15 ppm at 25
o
C + 3
o
C
_
_
o
20
= + 20 ppm at 25 C + 3
o
C
_
_
o
50
= + 50 ppm at 25 C + 3
o
C (Standard)
_
_
Frequency in MHz
Cload in pF
Parallel Resonance from
06
to
32
pF or
SR
= Series Resonance
Model Number
Available Frequency Stability versus Temperature in ppm
Operating
Temperature Range
0 to +45 C
0 to +50 C
0 to +60
o
C
0 to +70
o
C
-10 to +50 C
-10 to +60 C
-10 to +75 C
-20 to +70 C
-20 to +75 C
-30 to +75 C
-30 to +80
o
C
-30 to +85 C
-35 to +80 C
-40 to +85 C
-40 to +90 C
-40 to +105 C
-40 to +125 C
o
o
o
o
o
o
o
o
o
o
o
o
o
o
A
CODE
CB
CC
CE
CG
EC
EE
EH
GG
GH
JH
JJ
JK
KJ
LK
LL
LP
LU
+ 3.0
_
B
+ 5.0
_
C
+ 8.0
_
D
+ 10
_
E
+ 15
_
F
+ 20
_
G
+ 30
_
H
+ 50
_
J
+ 100
_
K
+ 150
_
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www.pletronics.com
425-776-1880
2
SM11T Series
Miniature SMD Crystal
August 2007
Legacy Part Number (not for new designs):
SM11T B
E
-18
-14.31818M
-XX
Internal code or blank
Frequency in MHz
Cload in pF
Parallel Resonance from 6 to 32 pF or
SR
= Series Resonance
Operating Temperature Range
Blank = 0 to + 70
o
C (STD)
E
= -40 to +85
o
C
Calibration Tolerance / Frequency Stability
Blank = 50/50 (STD)
B
= 30/30
C
= 15/30
D
= 10/20 (not all frequencies)
Model Number
Reliability: Environmental Compliance
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" (25.4mm x 66.7mm)
Font is Courier New
Bar code is 39-Full ASCII
Label is 1" x 2.6" (25.4mm x 66.7mm)
Font is Arial
www.pletronics.com
425-776-1880
3
SM11T Series
Miniature SMD Crystal
August 2007
Mechanical:
Inches
A
0.126 + 0.004
_
0.197 + 0.004
_
0.039 max
0.031
0.004
0.055
0.043
0.102
0.004
mm
3.2 + 0.2
_
5.0 + 0.2
_
0.85 max
0.8
0.1
1.4
1.1
2.6
0.1
4
4
1
B
C
D
1
E
1
3
3
2
F
1
G
1
H
1
Contacts :
Gold 11.8
μinches
0.3
μm
minimum over
Nickel 50 to 350
μinches
1.27 to 8.89
μm
J
1
Not to Scale
1
Typical dimensions
Connection (top view):
Pad 2 and Pad 4 are common and connected
to the metal cover. They are not connected to
the crystal.
1
4
2
3
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.
www.pletronics.com
425-776-1880
4
SM11T Series
Miniature SMD Crystal
August 2007
Part Marking:
fff.fff
M
PywwC
or
fff.fff
M
PymdCz
Where
fff.fff
= frequency in MHz
Pyww or Pymd = Pletronics and Date code
C
= Capacitance load code (see table below)
All other marking is internal factory codes
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.
•
•
Orientation of marking may be mixed on the tape
Traceability of part is lost once removed from reel
B
C
D
8
E
F
G
H
J
K
L
M
N
P
Q
R
S
T
U
V W
X
Y
Code
A
pF
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 YMD
Code
Year
Code
Month
Code
Day
Code
Day
Code
Day
1
1
D
13
T
25
6
2006
A
JAN
2
2
E
14
U
26
7
2007
B
FEB
3
3
F
15
V
27
8
2008
C
MAR
4
4
G
16
W
28
9
2009
D
APR
E
MAY
5
5
H
17
X
29
0
2010
F
JUN
6
6
J
18
Y
30
1
2011
G
JUL
7
7
K
19
Z
31
H
AUG
8
8
L
20
2
2012
J
SEP
9
9
M
21
K
OCT
A
10
N
22
L
NOV
B
11
P
23
M
DEC
C
12
R
24
Reflow Cycle (typical for lead free processing)
260°C Maximum
10 Seconds Maximum
215°C±10°C
175°C±10°C
Temperature (°C)
250
200
150
100
120 to 160 Seconds
Approximately 50 Seconds
Allowed rate of temperature change
Maximum 4°C per second
The part may be reflowed 2 times without degradation.
www.pletronics.com
425-776-1880
5
PCB Design
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