Summary
The datasheet provides specifications for the Crystal Unit (Through Hole) – HC-49/U (U Series), a typical component used in set-top box PCs and microcontrollers.
Key Specifications
The crystal unit operates within a frequency range of 3.579545 MHz to 125 MHz in fundamental and 3rd overtone modes.
The temperature stability range is -40°C to +85°C, and the storage temperature range is -55°C to +125°C.
The load capacitance range is 10 pF to 32 pF (series), with an ESR of 180 max at 100 max max frequencies.
The drive level for the loop filter is 0.2, with an aging rate of 0.06% per year.
ESR Table
The ESR (Ohm) values are listed in the table, varying according to frequency range and oscillation mode.
Manual:
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