SM12T Series
Miniature SMD Crystal
June 2008
• Pletronics’ SM12T Series is a miniature
surface mount crystal.
• Package is ideal for automated surface mount
assembly and reflow practices.
• Tape and Reel packaging
•
•
•
•
•
10 MHz to 80 MHz Fundamental Mode
40 MHz to 150 MHz 3
rd
Overtone
3.5 x 6 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
Min
10
40
Calibration Frequency Tolerance
Frequency Stability over OTR
Equivalent Series Resistance
(ESR)
10
3
-
-
-
Drive Level
Shunt Capacitance
Aging
(C0)
-
-
-3
-2
Operating Temperature Range
Storage Temperature Range
-40
-55
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
Max
80
150
50
150
60
50
100
100
5
+3
+2
+125
+125
Unit
MHz
MHz
ppm
ppm
Ohms
Ohms
Ohms
μW
pF
ppm /Yr
ppm /Yr
o
o
Condition
Fundamental Mode
3
rd
Overtone
_
at +25
o
C + 3
o
C, see part number for options
see part number for available options
10 MHz to 16 MHz
16 MHz to 50 MHz
40 MHz to 150 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
Fundamental
C
C
Deviation (ppm)
AT Cut Crystal Frequency
versus Temperature
Typical Performance:
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 © 2008, Pletronics Inc.
SM12T Series
Miniature SMD Crystal
June 2008
Part Number:
SM12T -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
M
= 95
o
C
U
= 125
o
C
F
= 65
o
C
Lowest Specified Operating Temperature
F
= -15
o
C
L
= -40
o
C
A
= +10
o
C
G
= -20
o
C
M
= -45
o
C
B
= +5
o
C
C
= 0
o
C
H
= -25
o
C
N
= -50
o
C
o
o
J
= -30 C
P
= -55
o
C
D
= -5 C
E
= -10
o
C
K
= -35
o
C
Mode:
1
= Fundamental
3
= 3
rd
Overtone
Frequency Stability
See chart below
Calibration Frequency Tolerance
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
Series Model
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 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
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
_
!
!
!
!
!
!
!
!
!
!
!
!
!
!
!
!
!
!
!
!
!
!
!
!
!
!
!
!
!
!
!
!
!
!
!
!
!
!
!
!
!
!
!
!
!
!
!
!
!
!
!
!
!
!
!
!
!
!
!
!
!
!
!
!
!
!
!
!
!
!
!
!
!
!
!
!
!
!
!
!
!
STD
!
!
!
!
!
!
!
!
!
!
!
!
!
!
!
!
!
!
!
!
!
!
!
!
!
!
!
!
!
!
!
!
!
!
!
!
!
!
!
!
!
!
!
!
!
!
!
Legacy Part Number (not for new designs):
www.pletronics.com
425-776-1880
2
SM12T Series
Miniature SMD Crystal
June 2008
SM12T B
E
-18
-11.0592M
-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
E
= -40 to +85
o
C
Calibration Tolerance / Frequency Stability
Blank = 50/50 (Standard)
A
= 30/50
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
SM12T Series
Miniature SMD Crystal
June 2008
Mechanical:
Inches
A
0.138 + 0.008
_
0.236 + 0.008
_
0.047 max
0.035
0.004
0.059
0.055
0.118
0.004
mm
3.5 + 0.2
_
6.0 + 0.2
_
1.2 max
0.9
0.1
1.5
1.4
3.0
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
SM12T Series
Miniature SMD Crystal
June 2008
Part Marking:
fff.fff
M
PymdC
•
•
Where
fff.fff
Pymd
C
= frequency in MHz
= Pletronics and Date code
= Capacitance load code (see table below)
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
www.pletronics.com
425-776-1880
5
玄铁RISC-V活动专区
京公网安备 11010802033920号
Copyright © 2005-2026 EEWORLD.com.cn, Inc. All rights reserved
电子工程世界
