Shock level and broken crystals causing failures
Written by on 3/9/2007
One of the most common failures of quartz crystals and quartz crystal based oscillator is broken crystals.
The crystal inside the package is suspended in free space inside the package, suspended in dry nitrogen or in an evacuated space. A high shock can cause the the precision timing element to fracture.
Most of the Pletronics products are rated to 1500Gs, this level of shock can be easily reached by dropping the device on the floor.
This chart shows the G force reached when dropping an object on a hardwood or a vinyl type floor surface. The forces are much higher on a concrete floor.