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SM12S Series
Low Frequency Crystal
October 2005
www.pletronics.com
425-776-1880
2
Electrical Specification:
Item
Min
Max
Unit
Condition
Frequency
32.0
32.768
kHz
Calibration Frequency Tolerance
-30
+30
ppm
at +25
oC
Equivalent Series Resistance
--
65K
Ohms
Drive Level
--
1.0
uW
Turn Over Temperature
20
30
oC
Nominal is 25
oC
Temperature Coefficient
-0.034
ppm/
oC2
typical
Q Factor
50000
--
Q
Shunt Capacitance
1.0
pF
Pin to Pin Capacitance, typical
Motional Capacitance
2.5
fF
typical
Aging (for first year)
-5
+5
ppm/Yr
at 25
oC +/-3oC
Insulation Resistance
500M
--
Ohms
at 100V DC
Crystal Cut
XY Cut
Operating Temperature Range
-40
+85
oC
Storage Temperature Range
-55
+125
oC
Shock Resistance
-5
+5
ppm
Vibration Resistance
-5
+5
ppm
Reflow Resistance
-10
+10
ppm
XY Crystal Frequency
versus Temperature
Typical Performance:
-160
-140
-120
-100
-80
-60
-40
-20
0
-45
-35
-25
-15
-5
5
1525354555657585
Temperature (C)