PACKAGE DATA
Package
Item
31SMX
Lid
Base
Sealing
Terminal plating
Glass
Glass
Anode
Gold
STANDARD SPECIFICATIONS
Part number
Package type
Nominal frequency
Frequency tolerance at
25C
Load capacitance
Equivalent series resistance
Drive level
Turnover temperature
Temperature coefficient
Quality factor
Shunt capacitance
Motional capacitance
Capacitance ratio
Aging (for first year)
Insulation resistance
Cut
Operating temperature range
Storage temperature range
Shock resistance
Vibration resistance
IR reflow resistance
Reflow soldering condition
31M327
31SMX
32.768 kHz
50 k max.
0.1W (1.0W max.)
25C 5C
-0.035 ppm/C
2
, Typical
30000 min.
1.7 pF, Typical
0.0029 pF, Typical
580, Typical
3 ppm max. at 25C 3C
500Mmin. at 100V DC 15V
XY-Cut
-40C to 85C
-55C to 125C
10 ppm max.
5 ppm max.
5 ppm max.
20 seconds max. at 230C
Item
Symbol
Specifications
P/N
F
f/F
CL
Rs
P
Tt
Q
Co
C1
f/F
Ri
To
Ts
f/F
f/F
f/F
12.5 pF
31M327
9pF
31M327-9
7pF
31M327-7
Quartz Crystal Units
31SMX
STANDARD LOW FREQUENCY SMD CRYSTALS
XT
AL
B: 20 ppm
C:
30 ppm (standard)
D:50 ppm
31SMX
31SMX
0.73
1.74
0.73
3.2
0.1
0.95
0.05
1.2
0.1
-80
-70
-60
-50
-40
-30
-20
-10
f/f(ppm)
TYPICAL TEMPERATURE CHARACTERISTICS
-20 -10
+20
+10
+30 +40 +50 +60 +70 +80
Temperature(
C)
0
0
XY-CUT
TAPE SPECIFICATIONS
4.0
0.1
2.0
0.1
1.75
0.1
+0.1
-0
1.5
L
B
F
D
A
C
J
M
A
3.7 1.5 12.0 5.5 4.0 1.0 0.3 1.2
180
Qty/Reel
3000pcs
B
C
D
F
J
L
M Reel Dia.
1.6
1.3
1.0
1.3
2.3
SOLDERING PATTERN
Actual Size
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