1. The crystal oscillator is a device sensitive to static electricity, so it is necessary to pay attention to anti-static;

2. The working voltage should not be too high, and the power lead should not be connected wrongly, so as not to damage the crystal oscillator;

3. The sealed crystal oscillator can only be cleaned with absolute alcohol, not ultrasonic cleaning;

4. The crystal oscillator that has been welded will always experience a frequency deviation, and will generally disappear automatically. Therefore, the welding temperature must not be too high;

5. When bending the pins, there must be a certain distance from the root.