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