| Crystal unit | UM-1 |
 |
|
Holder
Type
|
UM1 (with ground) and (without ground) |
|
Frequency
Range
|
20.945000 MHz |
|
Frequency
Stability at 25° C
|
+ 10 ppm max. |
|
Temperature
Stability
|
+ 10 ppm @ 0°C to +56°C |
|
Drive
Level
|
1,0 mW max. |
|
Load
Capacitance (CL )
|
30 pF |
|
Shunt
Capacitance (CO )
|
7 pF max. |
|
Vibration
Mode
|
AT-cut |
|
Equivalent
Series Resistance
|
R = 30 Ohm max. |
|
Aging
|
+ 5 ppm max./ year |
|
Leak
|
2 x 10-8 cc/sec max. helium |
|
Marking
|
94/19TQG//20945,0 |
|
All
information subject to change
|
|
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