hc49u.htm

Crystal Unit
HC49S
Holder Type
HC-49S
Frequency Range
4.000000 MHz
Frequency Stability at 25� C
+ 30 ppm
Temperature Stability
+ 50 ppm @ -10�C to +70�C
Drive Level
0.5 mW max.
Load Capacitance (CL )
16 pF, Code B
Shunt Capacitance (CO )
7 pF max.
Vibration Mode
AT-cut, fund.
Equivalent Series Resistance
R = 150 Ohm max.
Aging
+ 5 ppm max./ year
Leak
2 x 10-8 cc/sec max. helium
Marking
4.000Bcode
All information subject to change