Quartz crystal resonators HC-49US(SMD) has the advantage of small calibration tolerance,tight temperature frequency deviation and is widely used in mobile communications,kind of telephones,computers and facsimiles.

Quartz Crystal Resonator:
RoHS compliance
High-reliability or stability
Covering a wide frequency range
Excellent vibration resistance, shock resistance and environmental characteristics

Nominal frequency:      3.500~80.000MHz
Mode of vibration:  Fundament 3.5~30.0MHz,3rd Overtone 30.0~80.0MHz,20.0~40.0MHz
Frequency tolerance:   +/-20ppm,+/-30ppm,+/-50ppm
Frequency stability:    +/-20ppm,+/-30ppm,+/-50ppm
Load capacitance:     8pf~33pf,series
Shunt capacitance:    7.0pf max
Drive level:           0.01~2.0mw max
Aging:                ≤5ppm/ year
Special specifications are available as customer